粉体および粉末冶金
Online ISSN : 1880-9014
Print ISSN : 0532-8799
ISSN-L : 0532-8799
研究
WO3の直接炭化反応によるナノWC粉末の製造
水上 正彦山本 良治浅田 信昭松本 明英
著者情報
ジャーナル オープンアクセス

2006 年 53 巻 2 号 p. 154-159

詳細
抄録
Nano-sized WC powder that is expected as the raw material for nano-sized WC-Co hardmetals with high hardness and strength was developed. The reaction path and morphological change in the reaction process of WO3 with carbon powder (direct carburization) were firstly investigated by thermogravimetric analysis. The proper reaction condition examined by the thermogravimetric analysis was developed to trial production by direct carburization facilities.
The direct carburization reaction from WO3 to WC occurred through the generation of several intermediate products in the order of WO3 → WO2.72 → WO2 → W → W2C → WC. The nano-sized particles were generated at the stage from WO2.72 to WO2. We succeeded in the development of nano-sized WC powder less than 100 nm by controlling the reaction conditions for each intermediate products.
著者関連情報
© 2006 一般社団法人粉体粉末冶金協会

本論文はCC BY-NC-NDライセンスによって許諾されています.ライセンスの内容を知りたい方は,https://creativecommons.org/licenses/by-nc-nd/4.0/deed.jaでご確認ください.
https://creativecommons.org/licenses/by-nc-nd/4.0/deed.ja
前の記事 次の記事
feedback
Top