高圧力の科学と技術
Online ISSN : 1348-1940
Print ISSN : 0917-639X
特集:高圧力場が切り拓く材料科学の新展開
透明ナノセラミックスの超高圧合成
入舩 徹男
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ジャーナル フリー

2018 年 28 巻 3 号 p. 162-169

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Various transparent nano-ceramics have been synthesized using direct conversion from bulk glass starting materials under pressures higher than ~10 GPa and at high temperatures in Kawai-type Multi-anvil Apparatus (KMA). Rapid nucleation followed by slow crystal/grain growth is the key to synthesize such nano-ceramics at the ultra-high pressure regime. Thus synthesized novel ceramics have interesting features, such as higher hardness and lower thermal conductivity relative to those of the corresponding single crystals, in addition to their high optical transparencies, which may be useful for some scientific and industrial applications.

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© 2018 日本高圧力学会
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