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

  • Journal of the Korean Crystal Growth and Crystal Technology
  • Abbr : J. Korean Cryst. Growth Cryst. Technol.
  • 2019, 29(6), pp.329-337
  • DOI : 10.6111/JKCGCT.2019.29.6.329
  • Publisher : The Korea Association Of Crystal Growth, Inc.
  • Research Area : Engineering > Materials Science and Engineering
  • Received : November 11, 2019
  • Accepted : December 6, 2019
  • Published : December 31, 2019

Sung-Hun Kim 1 Jong-Young Kim 2 Wooyoung Shim 1 Jung-Ju Lee 3 Sungwook Kwon 3

1연세대학교 신소재공학과
2한국세라믹기술원
3상신브레이크

Accredited

ABSTRACT

We synthesized potassium titanates having splinter and plate shape and evaluated frictional and wear properties ofbrake 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 800oC. Plate-shaped potassiummagnesium 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.

Citation status

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