The erosion of AIN ceramics by sand particles

Grilec, Krešimir and Kumić, Ivan and Ćurković, Lidija and Baršić, Gorana (2010) The erosion of AIN ceramics by sand particles. = The erosion of AIN ceramics by sand particles. In: 10th International Foundrymen Conference, Casting Production-Progress through Knowledge, Quality and Environmental Protection, 10-12.06.2010., Opatija; Croatia.

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In this paper, erosion wear behavior of 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 changing roughness parameters of AlN ceramics testing sample is also determined. Therefore, erosive wear behavior of AlN ceramics was investigated using SiC and SiO2 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 (Ra, Rz and Rmax), before and after erosion with SiO2 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 SiO2 particles.

Item Type: Conference or Workshop Item (Poster)
Keywords (Croatian): Solid particle erosion; Erosion mechanisms; AlN ceramics
Subjects: TECHNICAL SCIENCE > Mechanical Engineering
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: No
Indexed in Current Contents: No
Date Deposited: 20 Aug 2015 09:49
Last Modified: 12 Sep 2018 11:09

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