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  1. No Access

    Article

    Fabrication of high-strength transparent MgAl2O4 spinel polycrystals by optimizing spark-plasma-sintering conditions

    By optimizing the heating rate during spark-plasma-sintering (SPS) processing, a high-strength transparent spinel (MgAl2O4) can be successfully fabricated for only a 20-min soak at 1300 °C. For the heating rates ...

    Koji Morita, Byung-Nam Kim, Keijiro Hiraga… in Journal of Materials Research (2009)

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    Article

    Microstructural examination in high-strain-rate superplastically deformed tetragonal ZrO2 dispersed with 30 vol% MgAl2O4 spinel

    The role of MgAl2O4 spinel particle dispersion for attaining high-strain-rate superplasticity (HSRS) was examined in tetragonal ZrO2. Microstructural examination shows that the dispersed spinel particles provide ...

    Koji Morita, Keijiro Hiraga, Byung-Nam Kim, Yoshio Sakka in Journal of Materials Research (2007)

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    Article

    Mechanical Properties of Textured Alumina Prepared by Colloidal Processing in a Strong Magnetic Field

    This is a copy of the slides presented at the meeting but not formally written up for the volume.

    S. Suzuki Tohru, Tetsuo Uchikoshi, Koji Morita… in MRS Online Proceedings Library (2006)

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    Article

    Role of Deformable Fine Spinel Particles in High-Strain-Rate Superplastic Flow of Tetragonal ZrO2

    The role of MgAl2O4 spinel particle dispersion in high-strain-rate superplasticity (HSRS) of tetragonal ZrO2 was examined by characterizing microstructural changes during deformation. The dispersed spinel particl...

    Koji Morita, Keijiro Hiraga, Byung-Nam Kim, Yoshio Sakka in MRS Online Proceedings Library (2004)