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  • 半導体ダイヤモンドヒーターの開発と応用

    米田 明, 謝 龍剣 日本鉱物科学会年会講演要旨集 2017 (0), 107-, 2017

    ダイヤモンドは絶縁体であるが、ホウ素を添加することにより半導体に転換し、高圧実験用のヒーター材として使用可能になる。最初の確認実験は愛媛大GRC研で行われた。岡山大学惑星研では2009年頃から半導体ダイヤモンドヒーターの開発に取り組んできた。その結果、W-Re熱電対が溶断する温度（～2500℃）以上の高温が発生できるようになった（推定～3700℃）。半導体ダイヤモンドヒーターのもう一つの利点はX…

    DOI

  • Novel phase of carbon, ferromagnetism, and conversion into diamond

    Jagdish Narayan, Anagh Bhaumik Journal of Applied Physics 118 (21), 2015-12-02

    ...T) of carbon and show that by rapid quenching kinetics can shift thermodynamic graphite/diamond/liquid carbon triple point from 5000 K/12 GPa to super undercooled carbon at atmospheric pressure in air....

    DOI PDF 被引用文献2件

  • 磁場印加中熱分解による強磁性熱分解炭素の作製

    神島 謙二, 宮田 大資, 佐藤 佑樹, 徳江 将, 柿崎 浩一, 平塚 信之, 今中 康貴, 高増 正 粉体および粉末冶金 56 (7), 456-460, 2009

    ...Diffraction peaks of iron or iron oxides were not observed for the ferromagnetic samples, whereas the major diffraction peaks of the intermediate graphite-diamond (IGD) structure were observed for the...

    DOI Web Site 参考文献17件

  • Pressure induced phase transitions of BNs

    K. Shirai, H. Fujita, H. Katayama‐Yoshida physica status solidi (b) 235 (2), 526-530, 2003-01-30

    ...In order to study systematically, the graphite–diamond transition is also examined. The present result again confirms that the dense form is more stable than the layered form....

    DOI Web Site 被引用文献5件

  • Synthesis of Linear Acetylenic Carbon;The Fourth Carbon Allotrope

    Lagow Richard J., Kampa Joel J., Wei Han-Chao, Battle Scott L., Genge John W., Laude David A., Harper Carla J., Mitchell Daniel R., Bau Robert, Stevens Raymond C., Haw James F., Munson Eric 炭素 1998 (181), 27-33, 1998

    ..., diamond and fullerenes-nanotubes as the fourthallotrope of the element carbon....

    DOI Web Site 被引用文献1件 参考文献23件

  • Nanosecond Pulse Laser Heating of Graphite in DAC.

    Eremets M. I., Amaya K., Kobayashi M., Shimizu K., Shimomura S., Stephan O., Blank V., Endo S. 高圧力の科学と技術 7 1013-1015, 1998

    Laser heating with nanosecond pulses was performed in DAC for the first time. The heated graphite transforms to a transparentdiamond-like state at pressures up to 35 GPa as follows from the …

    DOI Web Site 参考文献8件

  • Can Corrugated Si-Planes of CaSi2 Flatten under High Pressure?

    Kusakabe Koichi, Tateyama Yoshitaka, Ogitsu Tadashi, Tsuneyuki Shinji 高圧力の科学と技術 7 193-195, 1998

    ...Characteristics of structural transformation of CaSi<SUB>2</SUB> is discussed in comparison with the graphite-diamond transformation in which sp<SUP>3</SUP> bonding is selected at high pressure....

    DOI Web Site 参考文献5件

  • Mineralogy of meteorite groups

    Alan E. RUBIN Meteoritics & Planetary Science 32 (2), 231-247, 1997-03

    ...Ureilites are made up mainly of calcic, chromian olivine and low‐Ca clinopyroxene embedded in a carbonaceous matrix; accessory phases include the C polymorphs graphite, diamond, lonsdaleite and chaoite...

    DOI Web Site Web Site 被引用文献7件

  • Graphite-diamond transition in gem anvil cells

    Ji-an Xu, Eugene Huang Review of Scientific Instruments 65 (1), 204-207, 1994-01-01

    <jats:p>By replacing the anvils in a diamond cell with transparent gem materials, a gem anvil cell (GAC) has been constructed for high-pressure generation. We reached pressures of 8.9 and 7.8 GPa …

    DOI PDF 被引用文献1件

  • 電気熱的分析法による黒鉛-ダイヤモンド転移の観察

    中 重治, 諏訪 佳子, 武田 保雄, 平野 真一 日本化学会誌（化学と工業化学） 1981 (9), 1468-1473, 1981-09-10

    ガードル型高圧装置を使用し,60Hzの交流を黒鉛試料に直接通電,加熱することによって,その電圧,電流変化から黒鉛のダイヤモンドへの転換過程を動的に観察することができた。圧力範囲は80～140kb,温度は2100～2900K,出発試料に棒状分光分析用黒鉛,棒状電極黒鉛を使用した。試料の充てん量は80～250mgである。印加した電圧に対する電流変化の解析,すなわち電気熱的分析によって,安定な加熱条件…

    DOI Web Site Web Site

  • On trapped noble gases in ureilites

    R. Göbel, U. Ott, F. Begemann Journal of Geophysical Research: Solid Earth 83 (B2), 855-867, 1978-02-10

    ...Of the main constituents of carbon‐rich veins graphite, diamonds, and kamacite— graphite is shown to be void of trapped gases, while samples which show only the X ray diffraction lines of diamond have...

    DOI Web Site Web Site 被引用文献3件

  • Crystallization of Diamond and Graphite

    H. M. Strong, R. E. Hanneman The Journal of Chemical Physics 46 (9), 3668-3676, 1967-05-01

    ...At pressures in excess of 52.5 kbar, a liquid+graphite+diamond eutectic is formed at approximately 0.3 at. % nickel which results in an effective displacement of the diamond—graphite equilibrium line....

    DOI PDF 被引用文献8件

  • Melting of Graphite at Very High Pressure

    F. P. Bundy The Journal of Chemical Physics 38 (3), 618-630, 1963-02-01

    ...The graphite/diamond/liquid triple point is shown to be at about 4000 to 4200°K and 125 to 130 kbar.</jats:p>...

    DOI PDF 被引用文献4件

  • On the Graphite ‐ Diamond Equilibrium

    R. Berman, Sir Francis Simon Zeitschrift für Elektrochemie, Berichte der Bunsengesellschaft für physikalische Chemie 59 (5), 333-338, 1955-07

    <jats:title>Abstract</jats:title><jats:p>The equilibrium curve between graphite and diamond is calculated up to 1200°K by making use of some new experimental data. The justification for …

    DOI Web Site 被引用文献1件

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