Syntheses and Properties of Yb(Al[1-x]T[x])B₄(T=Cr, Fe) Compounds
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- KOUZU Kaoru
- Faculty of Science and Engineering, Kokushikan University
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- YAMASAKI Takashi
- Faculty of Science and Engineering, Kokushikan University
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- OKADA Shigeru
- Faculty of Science and Engineering, Kokushikan University
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- MORI Takao
- WPI-MANA, National Institute for Materials Science
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- GUO Quansheng
- WPI-MANA, National Institute for Materials Science
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- YUBUTA Kunio
- Institute for Materials Research, Tohoku University
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- NOMURA Akiko
- Institute for Materials Research, Tohoku University
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- SHISHIDO Toetsu
- Institute for Materials Research, Tohoku University
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- YOSHIKAWA Akira
- Institute for Materials Research, Tohoku University
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- ROGL Peter
- Institute of Materials Chemistry, University of Vienna
書誌事項
- タイトル別名
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- Syntheses and Properties of Yb(Al<sub>1−x</sub><i>T</i><sub>x</sub>)B<sub>4</sub> (<i>T</i> = Cr, Fe) Compounds
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説明
<p>Crystals of new compounds α-Yb(Al1−xTx)B4 (orthorhombic, space group Pbam) (T = Fe, x = 0~0.100; T = Cr, x = 0~0.015) with YCrB4-type were grown from Yb2O3, metal Fe or Cr and crystalline boron powders under an Ar atmosphere at 1773 K for 5 h. The obtained Yb(Al1−xTx)B4 crystals were measured for hardness and magnetic susceptibility. The values of micro-Vickers hardness for Yb(Al1−xFex)B4 and Yb(Al1−xCrx)B4 were in the range of 15.7(1.5)~16.8(1.5) GPa, and 13.3(2.7)~14.8(1.5) GPa, respectively. It is presumed that this difference is due to the difference in the size of the atomic radius of Fe or Cr. The magnetic susceptibility of Yb(Al0.995Fe0.005)B4 shows a sharp paramagnetic increase at low temperatures, likely due to impurities or defects.</p>
収録刊行物
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- 粉体および粉末冶金
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粉体および粉末冶金 66 (11), 525-529, 2019-11-15
一般社団法人 粉体粉末冶金協会
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詳細情報 詳細情報について
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- CRID
- 1390001277393149696
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- NII論文ID
- 130007745179
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- NII書誌ID
- AN00222724
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- ISSN
- 18809014
- 05328799
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- NDL書誌ID
- 030089985
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
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