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http://dx.doi.org/10.6111/JKCGCT.2019.29.6.329

Synthesis of splinter-type and plate-type potassium titanate as reinforcements in brake pad for automobile  

Kim, Sung-Hun (Department of Advanced Materials Science and Engineering, Yonsei University)
Kim, Jong-Young (Icheon Branch, Korea Institution of Ceramic Engineering and Technology)
Shim, Wooyoung (Department of Advanced Materials Science and Engineering, Yonsei University)
Lee, Jung Ju (Advanced Research Team, Sangsin Brake R&D Institute)
Kwon, Sung Wook (Advanced Research Team, Sangsin Brake R&D Institute)
Publication Information
Journal of the Korean Crystal Growth and Crystal Technology / v.29, no.6, 2019 , pp. 329-337 More about this Journal
Abstract
We synthesized potassium titanates having splinter and plate shape and evaluated frictional and wear properties of brake pad using them as reinforcements in friction materials. For splinter-shaped potassium titanates, potassium tetratitanate (K2O·4TiO2, PT4) with plate shape was prepared, then K ion of the titanate was leached by acid to make potassium hexatitanate (K2O·6TiO2, PT6), which was transformed to splinter-shaped PT6 by thermal treatment at 800℃. Plate-shaped potassium magnesium titanate (K0.8Mg0.4Ti1.6O4, PMT) was prepared by adding Mg in the potassium titanate using KCl as a flux. Using PT6 and PMT as reinforcements in friction materials of brake pad, we evaluated frictional and wear properties using 1/5-scale dynamometer. According to dynamometer test results, both reinforcements shows similar friction coefficient and fade & recovery behavior to conventional material and plate-shaped PMT exhibits higher wear resistance than splinter-shaped PT6.
Keywords
Reinforcement; Brake pad; Potassium titanate; Splinter; Plate;
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