2012•Advanced materials researchOpen access

Influence of CeO2 and Sintering Parameters on the Performance of Vitrified Bond Diamond Abrasive

Guang Zhao, Yu Mei Zhu, Zhihong Li, Xing Fei Li

Abstract

A kind of vitrified bond was selected to be sintered with diamond powders to prepare diamond abrasive. The effect of the additive of CeO2 and sintering parameters on the performance of vitrified bond diamond abrasive was investigated. The mechanical properties of diamond abrasives were tested on ZMC-Ⅱ type diamond static strength tester and the interfacial bonding states between diamond powders and vitrified bonds were studied by Scanning Electron Microscopy (SEM). The results indicated that CeO2 improved the performance of diamond abrasive by means of strengthening the bonding between diamond grits and vitrified bond. The admirable diamond abrasive was achieved when the sample was sintered at 800°C holding for 120min.

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Key concepts: Abrasive, Diamond, Materials science, Sintering, Scanning electron microscope, Composite material, Bond strength, Metallurgy