Browse Topic: Materials identification

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Carbon Fiber Fabric and Epoxy Resin Wet Lay-up Repair Material Part 2 - Qualification ProgramAMS2980/2B (Current)9/24/2021
AMS2980/2 gives specific information about the qualification program for carbon fiber fabric, epoxy systems and the material combination used for wet lay-up repair of carbon fiber reinforced epoxy structures.
AMS CACRC Commercial Aircraft Composite Repair Committee
Chemical Identification of Transportation Batteries for RecyclingJ2984_202109 (Current)9/10/2021
Battery Standards Recycling Committee
Disposition of Landing Gear Components Involved in Accidents/IncidentsARP4915B (Current)8/5/2021
This document establishes a procedure for disposition of landing gear components that have been involved in accidents/incidents. The recommendations in this document apply to components made of ferrous and non-ferrous alloys. The recommendations in this document do not apply to components made of non metallic composite materials.
A-5B Gears, Struts and Couplings Committee NEW Name Goes Her
Unidirectional Carbon Fiber Tape Epoxy Repair Prepreg, Vacuum Curing Part 2 - Qualification Program for Fiber, Carbon Fiber Tape Prepreg, and Film AdhesiveAMS6885/2 (Current)2/23/2021
AMS6885/2 gives specific information about the qualification program for unidirectional carbon fiber tape epoxy repair prepreg capable of curing under vacuum for repair of carbon fiber reinforced epoxy structures. The prepreg system shall include an epoxy film adhesive to be applied in a co-bonding process with the prepreg for solid laminate and sandwich bonding.
AMS CACRC Commercial Aircraft Composite Repair Committee
Peel Adhesion Test for Glass to Elastomeric Material for Automotive Glass EncapsulationJ1907_202101 (Current)1/7/2021
This recommended practice defines a procedure for the construction and testing of a 180 deg peel specimen for the purpose of determining the bondability of glass to elastomeric material in automotive modular glass. This test method suggests that elastomeric material of less than 172 mpa modulus be used as the encapsulating material. The present practice of encapsulating automotive glass is described as molded-in-place elastomeric material onto the outer edge of the glass using thermoplastic or thermosetting material that quickly sets in the mold. The glass is removed from the mold with the cured elastomeric material bonded to the perimeter of the glass. This encapsulated glass module can now be bonded with a sealant adhesive into the body opening of a vehicle.
Materials, Processes and Parts Council
Carbon Fiber and Fiberglass Epoxy Prepreg Products with 350 °F (177 °C) Cure for Aerospace ApplicationsAMS6891 (Current)12/30/2020
The intent of this specification is for the procurement of carbon fiber and fiberglass epoxy prepreg products with 350 °F (177 °C) cure for aerospace applications; therefore, no qualification or equivalency threshold values are provided. Users that intend to conduct a new material qualification or equivalency program must refer to the production quality assurance section (4.3) of this base specification, AMS6891.
AMS P17 Polymer Matrix Composites Committee
Anodic Coating on Aluminum Alloys Sulfuric Acid Process, Resin-SealedAMS2514B (Current)10/19/2020
This specification covers the engineering requirements for producing an anodic coating on aluminum and aluminum alloys which are subsequently sealed with an organic resin.
AMS B Finishes Processes and Fluids Committee
Performance Requirements for R-134a and R-1234yf Refrigerant Diagnostic Identifiers (RDI) for Use with Mobile Air Conditioning SystemsJ2912_202009 (Current)9/23/2020
Interior Climate Control Service Committee
Fluid, Jet ReferenceAMS2629F (Current)3/12/2020
This specification covers a mixture of liquid hydrocarbons and soluble additives.
AMS G9 Aerospace Sealing Committee
Preparing for MDR? Don’t Overlook the Analytical Evaluation ThresholdTBMG-360272/1/2020
Medical device manufacturers have a big challenge in preparing for their regulatory device submissions for 2020. In addition to the European Union’s new Medical Device Regulation (MDR) taking effect in May, the International Organization for Standardization (ISO) is expected published the latest version of ISO 10993-18 in January 2020. These updates will emphasize the criticality of chemical characterization studies and toxicological risk assessments, and a key concept in successful implementation of these activities is the analytical evaluation threshold (AET).
Lubricating Characteristics and Typical Properties of Lubricants Used in Aviation Propulsion and Drive SystemsAIR5433C (Current)11/19/2019
This SAE Aerospace Information Report (AIR) establishes guidance for the specification of formulated lubricant properties which contribute to the lubricating function in bearings, gears, clutches, and seals of aviation propulsion and drive systems.
E-34 Propulsion Lubricants Committee
Portable Electrochemical Sensing SystemTBMG-351419/1/2019
An electrochemical sensing system that significantly improves the ability to rapidly and accurately detect heavy metals in biological and environmental samples was developed. Using a simple blood sample from a finger prick, the system identifies and eliminates exposure to toxic metals such as lead. These dangerous elements continue to pose a significant health concern, especially to children.
Glossary of Carbon Steel Sheet and Strip TermsJ940_201907 (Current)7/29/2019
This glossary is intended to provide engineers, metallurgists, and production personnel with uniform definitions of commonly used carbon sheet and strip terms. The glossary serves to supplement information and photographs reported in SAE J810, J763, J877, J863, and J403. Many of the terms listed apply only to hot-dipped zinc-coated products or to uncoated products. The letter C following the term identifies a term applying to coated materials, while the letters NC identify a term applying to uncoated materials. Where no identification is provided, the term is common to both.
Metals Technical Committee
Smartphone Test Spots Poisoned Water RiskTBMG-347317/1/2019
Researchers have developed a biosensor that attaches to a smartphone and uses bacteria to detect unsafe arsenic levels. The device generates easy-to-interpret patterns similar to volume-bars that display the level of contamination.
Electrical Characterization of Crystalline UO2, THO2 and U0.71TH0.29O219AERP06_086/1/2019
Evaluating the suitability of advanced alloys for use in uranium-based neutron detectors. Air Force Institute of Technology, Wright-Patterson Air Force Base, Ohio Tracking and identifying radiation sources in the age of nuclear proliferation and well-resourced non-state actors is a national priority. Current neutron detection methods favor large detector volumes and long data collection times. Additionally, portable neutron detection methods have persistent problems with low signal-to-noise (small pulse height) and require large applied voltages. Conventional neutron detection usually employs scintillators, gas proportional tubes, or semiconductors with separate conversion layers that convert neutrons to charged reaction products. The challenge in conversion-layer devices is to construct a layer of adequate thickness for neutron capture that is also thin enough to allow the resulting reaction products to interact with the charge-sensitive areas. Standard conversion-layer devices typically employ 30 to 40 μm of enriched 10B due to the high thermal capture cross section of the isotope 10B and the ability for the energetic Li (0.84 MeV) and α (1.47 MeV) daughter particles to escape. The conversion layer thickness is thus a compromise between the neutron interaction rate and the ability to capture the charge in an electrically active medium. Some novel solid-state technologies provide a thin-film neutron detector consisting of a (or a stack of) semiconductor diode(s), each surrounded by a thin neutron-absorbing material.
Electrical Characterization of Crystalline UO2, THO2 and U0.71TH0.29O2TBMG-345276/1/2019
Tracking and identifying radiation sources in the age of nuclear proliferation and well- resourced non-state actors is a national priority. Current neutron detection methods favor large detector volumes and long data collection times. Additionally, portable neutron detection methods have persistent problems with low signal-to-noise (small pulse height) and require large applied voltages.
Researchers Create Smartphone System to Test for Lead in WaterTBMG-344215/1/2019
Researchers at the University of Houston have created an inexpensive system that can detect lead in tap water at levels commonly accepted as dangerous, using a lens made with an inkjet printer and a smartphone.
Using Common WiFi to Detect Weapons, Bombs, and Chemicals in BagsTBMG-341474/1/2019
Ordinary WiFi can easily detect weapons, bombs, and explosive chemicals in bags at museums, stadiums, theme parks, schools, and other public venues using a low-cost suspicious object detection system that is easy to set up, reduces security screening costs, and avoids invading privacy such as when screeners open and inspect bags, backpacks, and luggage.
Biological Threat DetectorsTBMG-3337212/1/2018
FLIR Systems, Inc. Wilsonville, OR 1-800-254-0630
Real-Time Ion Mobility Sensor SystemTBMG-3338112/1/2018
A real-time ion mobility sensor developed to detect contaminants and explosives is reliable, sensitive, robust, and inexpensive. The technology improves sensitivity and reduces false alarms for threat agents, and can identify chemicals with a sensitivity of five parts per billion.
Wide-Area Chemical SensorTBMG-3339612/1/2018
The detection and localization of gas releases, such as methane from leaking natural gas pipelines or nitrogen oxides from failing electrical equipment, require high sensitivity to the target gas and insensitivity to non-target gases. Infrared (IR) absorption spectroscopy gives highly specific characterization of the identity and amount of airborne chemicals. Traditionally, spectroscopy techniques for long-range chemical sensing separate the “sensitive to x gas” and “insensitive to x gas” atmospheric measurements by quickly switching back and forth between them to reduce errors caused by any atmospheric changes. Because the samples are not measured at the same time, it is impossible to ensure that all atmospheric conditions (e.g., contaminants or humidity) remain constant between the two measurements.
Environmental Degradation of Composite MaterialsARP6287 (Current)10/18/2018
In accordance with § 4.11 of AS36100, materials used in the construction of pallets, nets, and containers shall take into account the effects of environmental conditions, such as temperature, humidity, and UV degradation, expected in service. In accordance with (E)TSO-C90, the applicant shall consider environmental degradation due to aging, ultra-violet (UV) exposure, weathering, etc., for any materials used in the construction of pallets, nets, and containers. The purpose of this Aerospace Recommended Practice (ARP) is to provide guidelines for the basic requirements to be considered regarding environmental degradation effects when qualifying composite materials in the design to fulfill the (E)TSO-C90 Minimum Performance Standard. Material qualification is the verifying of a materials attributes and characterizations, which are typically determined through testing. Material variances related to raw materials and manufacturing processes are not part of this Aerospace Recommended Practice (ARP), nor is damage tolerance. However, these variances cannot be neglected, as all variances shall be considered when deciding the test factors for environmental effects.
AGE-2 Air Cargo
Fundamental Aspects of Single Molecule and Zeptomole ElectroanalysisTBMG-3302710/1/2018
The objective of this research program was to provide the fundamental understanding required for using the principles of electroanalytical chemistry to detect target molecules at very low concentration, including single molecules, with high specificity, simplicity, and low power.
Configuration Enables RFID Tags to Work as SensorsTBMG-3310010/1/2018
The detection and localization of gas releases, such as methane from leaking natural gas pipelines or nitrogen oxides from failing electrical equipment, require high sensitivity to the target gas and insensitivity to non-target gases. Infrared (IR) absorption spectroscopy gives highly specific characterization of the identity and amount of airborne chemicals. Traditionally, spectroscopy techniques for long-range chemical sensing separate the “sensitive to x gas” and “insensitive to x gas” atmospheric measurements by quickly switching back and forth between them to reduce errors caused by any atmospheric changes. Because the samples are not measured at the same time, it is impossible to ensure that all atmospheric conditions (e.g., contaminants or humidity) remain constant between the two measurements.
A Nanotech Sensor Turns Molecular Fingerprints into Bar CodesTBMG-328719/1/2018
Infrared spectroscopy is the benchmark method for detecting and analyzing organic compounds. However, that requires complicated procedures and large, expensive instruments, making device miniaturization challenging and hindering its use for some industrial and medical applications. It is also difficult to use it for data collection in the field, such as measuring pollutant concentrations. Furthermore, since it is fundamentally limited by low sensitivity, it requires large samples.
Device Detects Explosives, Drugs, or LeadTBMG-328349/1/2018
Warfighters and law enforcement personnel encounter many situations where they need to assess and determine if a situation is hostile or benign. Currently available field explosive detection kits are awkward, prone to mistakes, and difficult to use in non-ideal conditions. Accurate detection is easily thwarted by wind, improper staging areas, distractions, and contaminated hands. Current test devices require sampling gloves, are difficult to carry (multiple cans or bottles and sampling swabs), can easily be used incorrectly (adding reagents in the wrong order or the wrong quantity), and often require access to a flat surface for use.
Identification of Material for AN, MS, and AS Engine and Propeller Standard Utility Parts and Also for Company PartsAS269J (Current)8/9/2018
This SAE Aerospace Standard (AS) provides material identification codes for aluminum alloys, copper alloys, carbon steels, alloy steels, titanium alloys, corrosion resistant materials, and heat resistant materials that are used to make AN, MS, and AS engine and propeller standard utility parts. This document also provides similar material codes for company parts (such as nuts, bolts, etc.) having design configuration similar to other company parts or the engine and propeller standard utility parts (AN, MS, and AS) that are not of the same material.
E-25 General Standards for Aerospace and Propulsion Systems
Tape and Webbing, Textile, Para-Aramid Intermediate ModulusAMS3793D (Current)7/10/2018
This specification and its supplementary detail specifications cover para aramid in the form of tape and webbing.
AMS P Polymeric Materials Committee
Nuclear Radiation-Detecting DeviceTBMG-297037/1/2018
A material was developed for nuclear radiation detection that could provide a significantly less expensive alternative to the detectors now in commercial use. Specifically, the high-performance material is used in a device that can detect gamma rays — weak signals given off by nuclear materials — and easily identify individual radioactive isotopes. The device could be used in applications in homeland security such as detecting dirty bombs and the proliferation of nuclear materials.
Passive In-Situ Gas and Chemical SensorTBMG-297287/1/2018
In many chemical processes, it is often desirable to detect the presence, quantity, and/or qualities of certain chemicals of interest; for example, in many closed chemical processes (either batch or continuous), the generation or infiltration of certain deleterious chemicals can damage or ruin the effectiveness of the process. By continually or periodically monitoring such processes, the presence and/or amount of a deleterious chemical may be timely reported, and damage to the system may be averted.
Real-Time Airborne Particle AnalyzerTBMG-296867/1/2018
Particle analysis is useful for determining chemical compositions in a wide range of disciplines, from ascertaining the source of a petroleum sample to duplicating a fragrance. The technique is appealing to a broad cross-section of analytical sciences, but its applications are limited because, for existing equipment, sample size is limited, and testing is carried out under a high vacuum.
Wireless Chemical Sensor and Sensing Method for Use TherewithTBMG-297007/1/2018
NASA Langley Research Center has developed a wireless, open-circuit SansEC (Sans Electrical Connections) sensor that can detect the presence of chemicals without being in contact with the chemical it is detecting. This unique thin-film sensor is used in conjunction with a chemical reactant that detects the presence of the chemical. Because of the way the sensor operates, the reactant can be separated from the sensor itself and placed in caustic or harsh environments, and can still work to detect the specific chemical it was designed to discern. The ingenuity of the thin-film design with the elimination of all wires, connections, and electronic components enables the sensors to be produced cost-effectively. This is an application of the NASA award-winning SansEC sensor, which is damage-resilient and environmentally friendly to manufacture and use. The sensors use a NASA award-winning magnetic field response recorder to provide power to the sensors and to acquire physical property measurements from them.
Chemical Identification by Magneto-Elastic Sensing (ChIMES)TBMG-285343/1/2018
A low-cost sensor technology, called Chemical Identification by Magneto-Elastic Sensing (ChIMES), uses target response materials (TRMs) as actuators in magneto-elastic (M-E) sensors (Figure 1).
Tool and Die SteelsJ438_201801 (Current)1/9/2018
This standard covers the identification, classification, and chemical composition of tool and die steels for use by engineers, metallurgists, tool designers, tool room supervisors, heat treaters, and tool makers.
Metals Technical Committee
High Temperature Materials for Exhaust ManifoldsJ2515_201712 (Current)12/20/2017
A subcommittee within SAE ISTC Division 35 has written this report to provide automotive engineers and designers a basic understanding of the design considerations and high temperature material availability for exhaust manifold use. It is hoped that it will constitute a concise reference of the important characteristics of selected cast and wrought ferrous materials available for this application, as well as methods employed for manufacturing. The different types of manifolds used in current engine designs are discussed, along with their range of applicability. Finally, a general description of mechanical, chemical, and thermophysical properties of commonly-used alloys is provided, along with discussions on the importance of such properties.
Metals Technical Committee
Tape and Webbing, Textile, Para-Aramid Intermediate ModulusAMS3793C (Historical)8/28/2017
This specification and its supplementary detail specifications cover para aramid in the form of tape and webbing.
AMS P Polymeric Materials Committee
Chip-Sized Terahertz Modulator for Faster Data TransmissionTBMG-270446/1/2017
Tufts University engineers have invented a chip-sized, high-speed modulator that operates at terahertz (THz) frequencies at room temperature and at low voltages without consuming DC power. The discovery could transmit data at significantly higher speeds than currently possible.
New Technique Controls Laser PolarizationTBMG-267674/24/2017
Engineers have developed a new technique to control the polarization state of a laser that could lead to a new class of powerful, high-quality lasers for use in medical imaging, chemical sensing and detection, or fundamental science research.
Lifetime Assessment of Cylinder Heads for Efficient Heavy Duty Engines Part I: A Discussion on Thermomechanical and High-Cycle Fatigue as Well as Thermophysical Properties of Lamellar Graphite Cast Iron GJL250 and Vermicular Graphite Cast Iron GJV4502017-01-03493/28/2017
Cast iron materials are used as materials for cylinder heads for heavy duty internal combustion engines. These components must withstand severe cyclic mechanical and thermal loads throughout their service life. While high-cycle fatigue (HCF) is dominant for the material in the water jacket region, the combination of thermal transients with mechanical load cycles results in thermomechanical fatigue (TMF) of the material in the fire deck region, even including superimposed TMF and HCF loads. Increasing the efficiency of the engines directly leads to increasing combustion pressure and temperature and, thus, lower safety margins for the currently used cast iron materials or alternatively the need for superior cast iron materials. In this paper (Part I), the TMF properties of the lamellar graphite cast iron GJL250 and the vermicular graphite cast iron GJV450 are characterized in uniaxial tests and a mechanism-based model for TMF life prediction is developed for both materials. The model can be used to estimate the fatigue life of components by means of finite-element calculations (Part II of the paper) and supports engineers in finding the appropriate material and design. Furthermore, the effect of the elastic, plastic and creep properties of the materials on the fatigue life can be evaluated with the model. However, for a material selection also the thermophysical properties, controlling to a high level the thermal stresses in the component, must be considered. Hence, the need for integral concepts for material characterization and selection from a multitude of existing and soon-to-be developed cast iron materials is discussed.
Seifert, Thomas, von Hartrott, Philipp, Boss, Kristopher, Wynthein, Paul
Multisensory Contributions to Perceived Quality and Authenticity of Materials for the Vehicle Interior2017-01-04943/28/2017
Material authenticity is an important factor for appearance and perceived quality of the vehicle interior. The term authenticity implies ambivalence: For the product designer, it means identification and trueness of the origin of the material. The customers, however, can only access information on the nature of the materials via their own perception of surface features. Thus, the intended authenticity of a material always needs to be conveyed by its surface. Specific cases illustrate the context: 1. The customer touches a part of known matter, but various layers prevent from directly touching the natural material: e.g. leather at the steering wheel, applications of wood. 2. Perception of a thin surface layer indicates authentic material, which is not fulfilled by the whole part: e.g. plastic parts plated with metal. 3. A part consists of authentic material, but newly composed, so that it is not easily identified, such as recycled materials, e.g. leather fiber layers for seats. Optimization of the perceivable authenticity is always a multi-sensory task. Customers see and touch materials in the show room. Sound is usually generated by touching surfaces. Smell is important for natural materials, like leather. Even if the material is only observed visually, its appearance points towards tactile features, like softness, roughness, etc. Beside general considerations, multi-sensory perception of leather and vinyl materials as well as haptic appearance of thin metal layers is described in detail. An innovative method for measurement of the contact temperature is introduced, which helps to evaluate the materials potential to provide authentic “metal feel”.
Haverkamp, Michael Christian, Moos, Anja
Classification System for Automotive Polyamide (PA) PlasticsJ1639_201703 (Current)3/28/2017
This SAE Recommended Practice provides a system for classification and specification for limited number of polyamides (nylons) used in the Automotive Industry. Based upon ASTM D 4066, Classification System for Nylon Injection and Extrusion Materials (PA), it calls for additional descriptive characteristics and properties commonly used in the Automotive Industry. This document applies to natural and non-color matched black, heat-stabilized polyamide compounds only. Color matched compounds shall be defined by the proprietary OEM standards. This document allows for the use of recycled, reconstituted, and regrind materials provided that the requirements as stated in this document are met, the material has not been altered or modified to change its suitability for safe processing and use, and the material shall be identified as such.
Plastics Committee
Fluid, Jet ReferenceAMS2629E (Historical)2/8/2017
This specification covers a mixture of liquid hydrocarbons and soluble additives.
AMS G9 Aerospace Sealing Committee
Carbon Fiber Fabric Repair Prepreg, 120 °C (250 °F) Vacuum Curing Part 2 - Qualification Program for Fiber, Fabric, Carbon Prepreg, Film Adhesive and Non-Structural Glass PrepregAMS3970/2A (Current)12/6/2016
AMS3970/2 gives specific information about the qualification program for carbon fiber reinforced epoxy structural repair prepreg systems, applicable for 120 °C (250 °F) vacuum curing. The prepreg system may include an epoxy film adhesive to be applied in a co-curing process with the prepreg for joint and sandwich bonding. The need for a film adhesive shall be established during screening tests.
AMS CACRC Commercial Aircraft Composite Repair Committee
Lunar Thin Section Particle Identification and Analysis AlgorithmTBMG-2604712/1/2016
Particle shape is a very important property in many fields of research, and with many practical, diverse, and commercially important applications including pharmaceuticals, civil engineering, metallurgy, health, and food processing. Many of the methods used to evaluate the shapes of solid particles employ a plane section through the particles. This mode may be termed Plane of Section. Plane of Section abstracts three-dimensional (3D) objects to two dimensions (2D).
Fastener Part Standard - Cap Screws, Hex, Heavy Hex and Heavy Hex Structural Bolts, and Hex Nuts (Inch Dimensioned)J2295_201611 (Current)11/15/2016
This SAE Part Standard covers selected inch screws, bolts, structural bolts, and nuts manufactured in accordance with ASTM International and SAE fastener standards. Appendix A covers bolt blanks to manufacture fitted bolts of specific materials. This document covers fastener materials often used in ship systems and equipment but its use may be applied wherever fasteners of the covered materials are used. This document permits the fasteners to be identified and ordered by a part identification number (PIN) as defined in this document.
Ship Systems - Fasteners Committee
Thread, Aramid, Spun StapleAMS3794B (Current)6/14/2016
This specification covers a spun staple, high temperature, aramid thread.
AMS P Polymeric Materials Committee
350 °F Autoclave Cure, Low Flow Toughened Epoxy PrepregsAMS3961 (Current)12/2/2015
The intent of this specification is for the procurement of the material listed on the QPL and, therefore, no qualification or equivalency threshold values are provided. Users that intend to conduct a new material qualification or equivalency program shall refer to the Quality Assurance section of this base specification, AMS3961. All material qualification and equivalency data has been archived and is available for review upon request. Contact the CMH-17 Secretariat (www.cmh17.org) for additional information.
AMS P17 Polymer Matrix Composites Committee
Plastic Sheet, PolycarbonateAMSP46144A (Current)4/13/2015
This specification covers polycarbonate sheet.
AMS P Polymeric Materials Committee
Physical-Chemical Characterization Techniques, Epoxy Adhesive and Prepreg Resin SystemsARP1610A (Current)8/14/2014
This recommended practice describes the physical and chemical characterization techniques for identification of epoxy adhesive and prepreg resin systems in order to verify the chemical formulation, resin B-staging (See 8.1), cure reaction rates, adhesive moisture content, and resin component mix ratios, as necessary to achieve manufacturing and quality producibility and engineering performance.
AMS P17 Polymer Matrix Composites Committee
Fluid, Jet ReferenceAMS2629D (Historical)1/10/2014
This specification covers a mixture of liquid hydrocarbons and soluble additives.
AMS G9 Aerospace Sealing Committee
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