Erosion mechanisms of aluminium nitride ceramics at different impact angles

Grilec, Krešimir and Ćurković, Lidija and Kumić, Ivan and Baršić, Gorana (2011) Erosion mechanisms of aluminium nitride ceramics at different impact angles. = Erosion mechanisms of aluminium nitride ceramics at different impact angles. Materialwissenschaft und Werkstofftechnik, 42 (8). pp. 712-717. ISSN 0933-5137. Vrsta rada: ["eprint_fieldopt_article_type_article" not defined]. Kvartili JCR: Q4 (2011). .

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In this paper, erosion wear behaviour of aluminium nitride (AlN) ceramics is studied. The influence of particle hardness and shape on erosion of the AlN surface is examined. The effect of varying the impingement angle on the weight loss and the roughness parameters of AlN ceramics testing sample is also determined. Therefore, erosive wear behaviour of AlN ceramics was investigated using SiC and SiO 2 particles as erodents, at following impact angles: 30°, 45°, 60°, 75° and 90°. Scanning electron microscopy (SEM) was used to analyze the eroded surfaces in order to determine erosion mechanisms. The roughness parameters (R a, R z and R max), before and after erosion with SiO 2 and SiC particles at 30° and 90° angles of impingement, respectively, were determined using a profilometer. It was found that the impact angle is influencing the erosion wear of the AlN ceramics and maximum erosion takes place at impact angle of 90°. The results indicate that hard, angular SiC particles cause more damage than softer, more rounded SiO 2 particles. Copyright © 2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

Item Type: Article (["eprint_fieldopt_article_type_article" not defined])
Keywords (Croatian): AlN; AlN ceramic; Erosion mechanisms; Erosion wear; Erosive wear; Impact angles; Impingement angle; Profilometers; Roughness parameters; SiC particles; Solid particle erosion; Testing samples; Weight loss; Aluminum; Aluminum compounds; Ceramic materials; Nitrides; Scanning electron microscopy; Silicon carbide; Wear of materials; Erosion
Divisions: 1000 Department of Materials > 1010 Chair of Materials and Tribology
1000 Department of Materials > 1020 Chair of Heat Treatment and Surface Engineering
800 Department of Quality > 810 Chair of Precise Measurement and Quality
Indexed in Web of Science: Yes
Indexed in Current Contents: Yes
Citations JCR: 3 (12.09.2018.)
Quartiles: Q4 (2011)
Citations SCOPUS: 3 (12.09.2018.)
Date Deposited: 22 Apr 2015 11:44
Last Modified: 12 Sep 2018 11:13

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