高圧力の科学と技術
Online ISSN : 1348-1940
Print ISSN : 0917-639X
古くて新しい炭素の新展開
高強度レーザー誘起衝撃波による金属炭素生成の可能性
重森 啓介
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ジャーナル フリー

2006 年 16 巻 3 号 p. 243-250

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We have been developing an experiment on laser-induced double-shock compression of diamond foils to a metallic phase by means of impedance-mismatching technique. We measured the reflectivity from the rear side of the diamond foil with a velocity interferometer system for any reflector. The measured reflectivity of the diamond clearly increased with the double compression. Independently measured from an optical pyrometer indicates that the compressed temperature of the diamond was approximately 7300 K, which is much lower than that of the single shock. The experimental results strongly suggest the phase transition from diamond to metallic carbon.

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© 2006 日本高圧力学会
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