A study of B 4 C‐SiC composite for self‐lubrication | Zendy

Zhang Wei | Zendy; Yamashita Seiji | Zendy; Kita Hideki | Zendy

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A study of B 4 C‐SiC composite for self‐lubrication

Author(s) -

Zhang Wei,

Yamashita Seiji,

Kita Hideki

Publication year - 2021

Publication title -

journal of the american ceramic society

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.9

H-Index - 196

eISSN - 1551-2916

pISSN - 0002-7820

DOI - 10.1111/jace.17584

Subject(s) - annealing (glass) , composite number , materials science , lubrication , composite material , friction coefficient , tribology , coefficient of friction

A B 4 C‐SiC composite without annealing and two B 4 C‐SiC composites followed by annealing at 1000℃ and 1200℃ for 1 hour in air, respectively, were prepared. The tribological properties of the three composites were evaluated by sliding against SiC balls at room temperature under unlubricated conditions. The B 4 C‐SiC composite can obtain lower friction coefficient by annealing at 1000℃, whereas the friction coefficient of B 4 C‐SiC composite annealed at 1200℃ was significantly increased. The cause for this difference was ascribed to different surface compositions after annealing. The mechanism of self‐lubrication of the B 4 C‐SiC composite was the formation of H 3 BO 3 layer.

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