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Influence of angle of incidence, temperature and SiC content on erosive wear behavior of ZrB 2 ‐SiC composites
Author(s) -
Gupta Yashpal,
Venkateswaran T.,
Kumar B. Venkata Manoj
Publication year - 2019
Publication title -
international journal of applied ceramic technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.4
H-Index - 57
eISSN - 1744-7402
pISSN - 1546-542X
DOI - 10.1111/ijac.13392
Subject(s) - materials science , composite material , erosion , composite number , paleontology , biology
This research work deals with the investigation of erosive wear of spark plasma sintered ZrB 2 ‐SiC composites with variation in angle of incidence (30°, 60°, and 90°), test temperature (room and 800°C) and SiC content (10, 20, and 30 vol.%). Results indicate a large variation in erosion rate from 2.13 to 75.45 mm 3 /kg with change in angle of incidence, test temperature, and SiC content. Erosion rate decreased with the decrease in angle of incidence, increase in temperature, and increase in SiC content. With increase in SiC content from 10 to 30 vol.%, a maximum reduction of 68% in erosion rate obtained at shallow incidence and room temperature, and a maximum reduction of 78% in erosion rate obtained at shallow incidence and 800°C. SEM‐EDS and XRD analyses indicate that formation of B 2 O 3 and SiO 2 ‐rich protective surface is responsible for high temperature erosion resistance of ZrB 2 ‐SiC composites.