Slurry Erosive Wear Characteristics of Engineering Ceramics for Hydraulic Machinery

Abstract:

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Engineering ceramics have a high application potential for wear-protection of different equipment used for electric power generating, mining and mineral industries. The ZTA (zirconia toughened alumina) and alumina (92%, 95%) have been prepared. Effects of varying the impact velocity and volume content of erodent particle and erosive time are investigated. Scanning electron microscopic examination of the eroded ceramic surfaces provides insights into the erosive wear mechanisms. The material removal processes include chipping out of lateral cracks caused by impact of the erodent particles, grain boundary cracking and grain pull out, as well as plastic deformation caused by the repeated sliding and impact of the particles.

Info:

Periodical:

Key Engineering Materials (Volumes 280-283)

Edited by:

Wei Pan, Jianghong Gong, Chang-Chun Ge and Jing-Feng Li

Pages:

1689-1692

DOI:

10.4028/www.scientific.net/KEM.280-283.1689

Citation:

J. Liu et al., "Slurry Erosive Wear Characteristics of Engineering Ceramics for Hydraulic Machinery", Key Engineering Materials, Vols. 280-283, pp. 1689-1692, 2005

Online since:

February 2007

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Price:

$35.00

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