Ceramic Bound Materials: A Suitable Solution for Light Brakes

2019-01-2109

09/15/2019

Event
Brake Colloquium & Exhibition - 37th Annual
Authors Abstract
Content
A ceramic bound matrix has been investigated to be used as a friction material. The materials were produced by means of ceramic technology using frits containing silicates, and ceramic friction modifiers such as tin oxide, zircon, iron oxide, magnesium oxide. Four formulations were tested by means of a tribometer (pin-on-disc tester) using a gray cast iron counterpart. Test section included speeds between 1 and 12 ms-1, and loads between 25 and 400 N. The coefficient of friction of the tested specimens were between 0.7 and 0.4, and exhibited sensitivity to speed at low loads (25 N), while they are quite stables at high loads (400N). The characterization of the tribolayers was carried out by means of scanning electron microscopy. The four developed materials were named A, B, C, and D. They exhibited different wear rates and coefficients of friction. All the materials exhibited sensitivity to speed, while showed a lower sensitivity to load. The coefficient of friction level seems to be suitable for brake applications, oscillating between 0.6 and 0.4, depending on the test section. This kind of materials with further efforts can be possibly useful in future electric vehicles that will not demand large and expensive brakes.
Meta TagsDetails
DOI
https://doi.org/10.4271/2019-01-2109
Pages
5
Citation
Dante, R., Cotilli, E., Conforti, M., Cotilli, M. et al., "Ceramic Bound Materials: A Suitable Solution for Light Brakes," SAE Technical Paper 2019-01-2109, 2019, https://doi.org/10.4271/2019-01-2109.
Additional Details
Publisher
Published
Sep 15, 2019
Product Code
2019-01-2109
Content Type
Technical Paper
Language
English