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Effect of Reaction Temperature on CeO2-Coated cBN Particles for Vitrified cBN Abrasive Tools

  • Jiang Shi
  • Feng HeEmail author
  • Junlin Xie
  • Xiaoqing Liu
  • Hu Yang
Conference paper
Part of the Springer Proceedings in Physics book series (SPPHY, volume 216)

Abstract

Effect of reaction temperature on CeO2-coated cBN particles for vitrified cBN abrasive tools was studied. Meanwhile, the bending strength of the abrasive tools prepared with coated and uncoated cBN abrasives was compared. Microstructure characterization confirmed that the cBN particles were successfully coated with CeO2. Besides, CeO2 tended to agglomerate on the cBN surface under lower reaction temperatures (55 °C), which was detrimental to the wetting of vitrified bond on the cBN surface, resulting in a decrease in the bending strength of the abrasive tools. However, as the reaction temperature increased, CeO2 gradually spread on the surface of cBN, and the agglomeration was disappeared. The CeO2 layer on the cBN surface gradually became dense and smooth, and the wetting state of vitrified bond on cBN was significantly improved. Thus, the holding force of the bonds on the abrasive grains was increased, which developed the bending strength of the abrasive tool. When the reaction temperature was 75 °C, T3 (AT) exhibited the best bending strength (124.54 MPa), which proved that CeO2-coated cBN was an effective way to improve the holding force of vitrified bonds on abrasives.

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Copyright information

© Springer Nature Singapore Pte Ltd. 2019

Authors and Affiliations

  • Jiang Shi
    • 1
    • 2
  • Feng He
    • 1
    • 2
    Email author
  • Junlin Xie
    • 1
    • 2
  • Xiaoqing Liu
    • 3
  • Hu Yang
    • 2
  1. 1.State Key Laboratory of Silicate Materials for ArchitecturesWuhan University of TechnologyWuhanChina
  2. 2.School of Materials Science and EngineeringWuhan University of TechnologyWuhanChina
  3. 3.Center of Materials Research and TestingWuhan University of TechnologyWuhanChina

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