Solid particle erosion behaviour of high purity alumina ceramics

Ćurković, Lidija and Kumić, Ivan and Grilec, Krešimir (2011) Solid particle erosion behaviour of high purity alumina ceramics. = Solid particle erosion behaviour of high purity alumina ceramics. Ceramics International, 37 (1). pp. 29-35. ISSN 0272-8842. . .

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Abstract

The solid particle erosion behaviour of a high purity, cold isostatically pressed ceramics, CIP-Al 2O 3, is studied in this paper. The influence of particle properties, such as hardness and shape, on erosion is examined, as well as the effect of varying the impingement angle of the erodent stream on the weight loss of alumina ceramics samples. Therefore, the erosive wear behaviour was studied at five different impact angles (30°, 45°, 60°, 75° and 90°), using SiC and SiO 2 particles as erodents. The material loss during solid particle erosion is measured by changes in surface roughness, surface morphology and mass loss. The surface roughness and topography of the eroded Al 2O 3 ceramics were recorded using a profilometer. Scanning electron microscopy (SEM) was used to examine the features of eroded surfaces and to ascertain erosion mechanisms of the tested alumina samples. The results indicate that hard, angular SiC particles cause more damage than softer, more rounded SiO 2 particles. It was found that maximum erosion by both types of particles occurs at an impact angle of 90°. © 2010 Elsevier Ltd and Techna Group S.r.l.

Item Type: Article (UNSPECIFIED)
Keywords (Croatian): Alumina ceramic; B. Electron microscopy; C. Wear resistance; Erosion mechanisms; Solid particle erosion; Ceramic materials; Scanning electron microscopy; Silicon carbide; Surface morphology; Surface properties; Surface roughness; Wear resistance; Erosion
Subjects: TECHNICAL SCIENCE
Divisions: 1000 Department of Materials > 1010 Chair of Materials and Tribology
1000 Department of Materials > 1020 Chair of Heat Treatment and Surface Engineering
Indexed in Web of Science: Yes
Indexed in Current Contents: Yes
Citations JCR: 13 (17.4.2015.)
Citations SCOPUS: 16 (17.4.2015.)
Date Deposited: 17 Apr 2015 10:51
Last Modified: 17 Apr 2015 10:51
URI: http://repozitorij.fsb.hr/id/eprint/3849

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