Fabrication, Mechanical Properties, and Electrical Conductivity of Co3O4 Ceramics |
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| Authors: | Shinichi Sakamoto Masaru Yoshinaka Ken Hirota Osamu Yamaguchi |
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| Affiliation: | Department of Molecular Science and Technology Faculty of Engineering, Doshisha University, Tanabe Kpto 610-03, Japan |
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| Abstract: | Well-densified Co3O4 ceramics (98.3% of theoretical) have been fabricated by the combined use of hot pressing (800°C/I h/30 MPa) and hot isostatic pressing (880°C/2 h/196 MPa). Their Vickers hardness and fracture toughness are 10.3 GPa and 4.2 MPa·m1/2, respectively. They exhibit a high electrical conductivity of 3.35 × 10' S·cm−1 at 800°C. |
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