Decoding Genuine Ceramic Pad Formulations - materials and
processing Bharat S. Tomar, Dr. Sharafat Ali, Dr. Keith Ellis,
Yogesh Chaudhary Allied Nippon Private Limited, Sahibabad,
Ghaziabad 201010, UP, India
---------------------------------------------------------------------------------------------------------------
ABSTRACT The need for development of genuine ceramic composite for
PV application arose to overcome the challenges associated with
traditional semi-metallic pads. The main focus is to achieve better
performance, pad and disc wear along with low dust in comparison to
semi-metallic pads. In general, brake pads convert kinetic energy
to thermal energy through friction and operating temperature in
semi-metallic brake pads is higher due to presence of steel having
high thermal conductivity. Over the last decade, the customer
preference has moved over to ceramic pads due to light coloured pad
surface, low disc and pad wear and low dust in comparison to
semi-metallic pads. The traditional steel has been replaced by
Aramid, engineered ceramic fibre, potassium titanate (TISMO D),
lapinus fibre (RB 250) to impart similar/better performance. The
current work investigates the characterisation of genuine ceramic
and semi-metallic composites. The three genuine ceramic and one
semi-met composites have been designed and evaluated for physical,
mechanical and performance properties. All the composites have been
tested on brake inertia dynamometer for AK Master (SAE J2522), AK
Noise (SAEJ2521) and Wear (SAE J2707B) using a Volkswagen Golf
calliper. Friction, pad wear, rotor wear, noise and physical
properties are significantly influenced by the type of composite.
On the basis of selected testing its concluded that genuine ceramic
composite have moderate friction whereas friction level is higher
in semi-met composite. Pads and rotor wear rate of genuine ceramic
composite is significantly low as compared to semi-met. Noise &
vibration properties of genuine ceramic pads are better than
semi-met composite. The ceramic pads are scorched for better
initial bite.