Chodisetti Surya Prakasarao (Author), Mitjan Kalin (Author), B.V. Manoj Kumar (Author)

Abstract

Friction and wear characteristics of spark plasma sintered SiC-▫$TiB_2$▫ composites in reciprocating sliding contacts are evaluated in terms of ▫$TiB_2$▫ content (0 - 30 vol%), normal load (5, 10 and 15 N) and temperature (25 °C and 600 °C). With increase in TiB2 content, friction increased, and wear decreased. Scanning electron microscopy, atomic force microscopy and Raman spectroscopy studies confirm protective tribo-oxidation in sliding at 600 °C. Effect of wear debris on friction response and wear resistance is emphasised. Wear mechanisms changed from fracture at 25 °C to tribo-oxidation at 600 °C. The presence of ▫$TiB_2$▫ reinforcement helps in enhancing wear resistance of SiC ceramics at room temperature, while formation of oxide layer and cylindrical debris are responsible for less wear at 600 °C.

Keywords

SiC;composites;reciprocating sliding;wear;high temperature;

Data

Language: English
Year of publishing:
Typology: 1.01 - Original Scientific Article
Organization: UL FS - Faculty of Mechanical Engineering
UDC: 539.4
COBISS: 178242307 Link will open in a new window
ISSN: 0955-2219
Views: 668
Downloads: 18
Average score: 0 (0 votes)
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Other data

Secondary language: Slovenian
Secondary keywords: kompoziti;trenje;obraba;
Type (COBISS): Article
Embargo end date (OpenAIRE): 2025-12-16
Pages: str. 2704-2719
Volume: ǂVol. ǂ44
Issue: ǂiss. ǂ5
Chronology: May 2024
DOI: 10.1016/j.jeurceramsoc.2023.12.055
ID: 22895645