Research for preparation and high hardness material of aluminium higher boride MgAlB22
Project/Area Number |
25420716
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Research Category |
Grant-in-Aid for Scientific Research (C)
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Allocation Type | Multi-year Fund |
Section | 一般 |
Research Field |
Inorganic materials/Physical properties
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Research Institution | Kokushikan University |
Principal Investigator |
Okada Shigeru 国士舘大学, 理工学部, 教授 (40191952)
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Project Period (FY) |
2013-04-01 – 2016-03-31
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Project Status |
Completed (Fiscal Year 2015)
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Budget Amount *help |
¥520,000 (Direct Cost: ¥400,000、Indirect Cost: ¥120,000)
Fiscal Year 2015: ¥130,000 (Direct Cost: ¥100,000、Indirect Cost: ¥30,000)
Fiscal Year 2014: ¥130,000 (Direct Cost: ¥100,000、Indirect Cost: ¥30,000)
Fiscal Year 2013: ¥260,000 (Direct Cost: ¥200,000、Indirect Cost: ¥60,000)
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Keywords | アルミニウムマグネシウム高ホウ化物 / アルミニウム自己フラックス法 / ビッカース微小硬さ / 低温磁化率 / アルミニウムマグネシウム22ホウ化物 / 金属マグネシウム / 結晶性ホウ素 / アルミニウムマグネシウム14ホウ化物 / エネルギー分散型X線分析計 / 格子定数 / 硬さ / アルミニウム自己フラックス / フッ化マグネシウム / 磁化率 / MgAlB22 / フラックス法 / 斜方晶系 |
Outline of Final Research Achievements |
MgAlB22 crystals were grown from Al-self flux in an Ar atmosphere. The raw materials used Mg metal, Mg salts, B and Al. The conditions for growing MgAlB22 were established using the starting mixtures of atomic ratio B/Mg = 2.0. The temperature of the furnace was raised to 1400℃, kept for 5 h and then cooled at a rate of 50℃/h. The crystals were selected under a microscope for the measurements of micro-hardness and magnetic susceptibility. Magnetic susceptibility of MgAlB22 was measured by using a SQUID magnetometer. The MgAlB22 crystals obtained from Mg or MgF2 and boron powders as starting materials of atomic ratio B/Mg = 2.0. The MgAlB22 crystals have well-developed {100} faces and the maximum dimensions of about 6.5 mm. The reagents used to prepare the solid solution (Mg1-xLEx)AlB22(LE = Li, Na, K) crystals were Mg metal, LE2B4O7, B and Al. The (Mg1-xLEx)AlB22 crystal was not obtained at the experiment. The value of microhardness of crystal was in the range of 25.4(0.6) GPa.
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Report
(4 results)
Research Products
(52 results)
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[Journal Article] ペロブスカイト型YRh3Bのホウ素不定比と性質に関する研究2013
Author(s)
宍戸 統悦, 湯葢 邦夫, 森 孝雄, 田中 雅彦, 工藤 邦男, 岡田 繁, 野村 明子,菅原 孝昌, 佐原 亮二, 林 好一, 古曳 重美, 澤田 豊, 手嶋 勝弥, 大石 修治, 川添 良幸, 吉川 影
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Journal Title
Journal of Flux Growth
Volume: 8
Pages: 12-17
Related Report
Peer Reviewed
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[Presentation] Crystal Chemistry and Magnetic Properties of ThCr2Si2-type RCo2B2 and RCo2B2C (R = Y, Gd)2014
Author(s)
Toetsu Shishido, Kunio Yubuta, Takao Mori, Masahiko Tanaka, Shigeru Okada, Akiko Nomura, Takamasa Sugawara, Ryoji Sahara, Hoichi Hayashi, Yoshiyuki Kawazoe and Akira Yoshikawa
Organizer
18th International Symposium on Boron, Borides and Related Materials (ISBB2014)
Place of Presentation
in Honolulu, Hawai’i, USA
Year and Date
2014-08-31 – 2014-09-05
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[Presentation] Comparative Thermoelectric Study of RB44Si2 Borosilicides; Floating zone (FZ) crystals and arc melted samples2014
Author(s)
Md. Anwar Hossain, Isao Tanaka, Takaho Tanaka, Atta Ullah Khan, Akiko Nomura, Kunio Yubuta, Toetsu Shishido, Shigeru Okada, Takao Mori
Organizer
18th International Symposium on Boron, Borides and Related Materials (ISBB2014)
Place of Presentation
in Honolulu, Hawai’i, USA
Year and Date
2014-08-31 – 2014-09-05
Related Report
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[Presentation] ThCr2Si2型YCo2B2, YCo2B2Cの合成および評価
Author(s)
宍戸 統悦, 湯葢 邦夫, 森 孝雄, 田中 雅彦, 工藤 邦男, 岡田 繁, 野村 明子, 菅原 孝昌,佐原 亮二, 鎌本 喜代美, 佐原 亮二, 林 好一, 古曵 重美, 澤田 豊, 手嶋 勝弥, 大石 修治, 川添 良幸, 吉川 彰
Organizer
第11回ナノ学会
Place of Presentation
東京工業大学(東京都)
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[Presentation] GdCo2B2とGdCo2B2Cの相関係およびこれらの性質
Author(s)
宍戸 統悦, 湯葢 邦夫, 森 孝雄, 田中 雅彦, 岡田 繁, 野村 明子, 菅原 孝昌, 戸澤 慎一郎, 小原 和夫, 鎌本 喜代美, 佐原 亮二, 林 好一, 古曵 重美, 澤田 豊, 手嶋 勝弥, 大石 修治, 川添 良幸, 吉川 彰
Organizer
日本セラミックス協会第26回秋季シンポジウム
Place of Presentation
信州大学(長野市)
Related Report
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[Presentation] 新規ホウ素系高温熱電変換材料の展望
Author(s)
森 孝雄, David Berthebaud, Anastasiia Prytuliak, Ievgen Kuzmych-Ianchuk, Oksana Solohub, 西島 一志, 道上 勇一, 西村 聡之, 丸山 恵史, 宮崎 譲, 林 慶, 梶谷 剛, 野村 明子, 湯葢 邦夫, 宍戸 統悦, 岡田 繁
Organizer
第9回日本ホウ素・ホウ化物研究会
Place of Presentation
物質材料機構(つくば市)
Related Report
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[Presentation] 三次元層状ホウ化物の合成に関する研究
Author(s)
宍戸 統悦, 湯蓋 邦夫, 森 孝雄, 田中 雅彦, 野村 明子, 菅原 孝昌, 岡田 繁, 吉川 彰
Organizer
第9回日本ホウ素・ホウ化物研究会
Place of Presentation
物質材料機構(つくば市)
Related Report
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