書誌事項
- タイトル別名
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- Preparation of Niobium Borides by Solid-state Reaction Between Niobium (V) Oxide and Amorphous Boron Powders
- 酸化ニオブ(5)と非晶質ホウ素の固相反応によるニオブホウ化物の合成
- サンカ ニオブ 5 ト ヒショウシツ ホウソ ノ コソウ ハンノウ ニ ヨル ニオブ ホウカブツ ノ ゴウセイ
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説明
Solid-state reaction between niobium (V) oxide and amorphous boron powders was carried out in a vacuum of 10−1 Pa at temperatures of 773K to 1773K for 1h. In the reaction at B/Nb2O5 molar ratios of 5.2 to 11.0 and 1773K, three kinds of niobium borides NbB, Nb3B4 and NbB2 were obtained. Single phases of NaB and NbB2 were obtained at the molar ratios of 5.7 and 8.2 to 10.6, respectively. However, when starting materials with the molar ratio of 7.0 were used, the Nb3B4 phase shows strongest relative X-ray intensities among NbB and NbB2 at 1773K. The lattice parameters of NbB and Nb3B4 are as follows: NbB (orthorhombic): a=0.3295 nm, b=0.8721 nm, c=0.3166 nm, Nb3B4 (orthorhombic): a=0.3302 nm, b=1.4076 nm, c=0.3142 nm. At the molar ratios of 8.2 to 10.6, lattice parameter of NbB2 (hexagonal) changed a=0.3111 nm∼0.3309 nm and c=0.3264 nm∼0.3308 nm.
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 54 (10), 682-685, 2007
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
- 1390001206307189760
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- NII論文ID
- 10019770172
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- NII書誌ID
- AN00222724
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- COI
- 1:CAS:528:DC%2BD2sXht1CmsbrK
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- ISSN
- 18809014
- 05328799
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- NDL書誌ID
- 9251603
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- 本文言語コード
- ja
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- 資料種別
- journal article
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- データソース種別
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- JaLC
- NDLサーチ
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- CiNii Articles
- KAKEN
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- 抄録ライセンスフラグ
- 使用不可