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Fabrication and Mechanical Properties of Titanium Boride Ceramics
Author(s) -
Nakane Shingo,
Takano Yoshihiko,
Yoshinaka Masaru,
Hirota Ken,
Yamaguchi Osamu
Publication year - 1999
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/j.1151-2916.1999.tb01975.x
Subject(s) - materials science , ceramic , fracture toughness , electrical resistivity and conductivity , titanium , boride , fabrication , hot pressing , flexural strength , composite material , grain size , metallurgy , pressing , medicine , alternative medicine , pathology , electrical engineering , engineering
Dense TiB ceramics (99.6% of theoretical) with a grain size of ∼5 µm have been fabricated by reaction hot pressing of TiB 2 and titanium for 2 h at 1900°C and 28.5 MPa. The TiB ceramics exhibit a fracture toughness ( K IC ) of 4.5 MPa·m 1/2 and a bending strength (sigma b ) of 360 MPa. Electrical resistivity (rho) is 3.4 × 10 ‐7 Omega·m at room temperature.