钛酸钾含量对汽车摩擦材料性能的影响<sup>*</sup>

doi:10.11896/j.issn.1005-023X.2017.012.010

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Abstract The potassium titanate flakes is a new type of reinforced material replacing asbesto used for friction material. The potassium titanate enhanced friction materials were prepared by powder metallurgy method based on a mature low metal ceramic formula. The influence of potassium titanate content (mass fraction, wt%) on the physical performance, mechanical property, friction and wear properties, and brake noise of the friction materials were investigated. The results indicate that with the increase of potassium titanate content, the porosity of friction material, pH value and Rockwell hardness value increased, while the density, compressibility and inner shear strength decreased. The stability of the friction coefficient was improved and the wear loss decreased firstly then increased. The change of the brake noise occurring frequence showed the same trend as the wear loss. When the potas-sium titanate content was 12%, the wear loss was the lowest, and the noise performance was the best.

Key words： six potassium titanate flakes physical performance mechanical property friction and wear properties brake noise

Published: 25 June 2017 Online: 2018-05-08

CLC number:

U465

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	Articles by authors
	LIU Bowei
	XU Fei
	LIU Yong
	YANG Yang
	TANG Bing

Cite this article:

LIU Bowei,XU Fei,LIU Yong, et al. Influences of Potassium Titanate Content on the Performance of Automobile Brake Materials[J]. Materials Reports, 2017, 31(12): 45-51.

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https://www.mater-rep.com/EN/10.11896/j.issn.1005-023X.2017.012.010 OR https://www.mater-rep.com/EN/Y2017/V31/I12/45

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