Translucent Al2O3/LaAl11O18 Composite |
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| Authors: | Isao Yamashita Koji Tsukuma Takafumi Kusunose |
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| Affiliation: | Tokyo Research Laboratory, Tosoh Corporation, Ayase, Kanagawa 252-1123, Japan;
Institute of Scientific and Industrial Research, Osaka University, Ibaraki, Osaka 567-0047, Japan |
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| Abstract: | A translucent alumina composite containing 1 vol% LaAl11O18, prepared by the hot isostatic pressing (HIP) method, displays both high translucency and high fracture toughness. Its total forward transmission at 600 nm is 75% (thickness 1 mm), and its bending strength and fracture toughness are estimated to be 574±15 MPa and 5.9±0.46 MPa·m0.5, respectively. Its high translucency is due to the similarity of refractive index between the additive phase (LaAl11O18) and the matrix (alumina). |
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