Preparation of Boron Nitride Fibers Using Hydrated Cellulose. Part 3. Nitriding Hydrated Cellulose Fibers Impregnated with Boric Acid

被引:0
作者
Alexander V. Kurdyumov
机构
[1] National Academy of Sciences of Ukraine,Institute for Problems of Materials Science
来源
Powder Metallurgy and Metal Ceramics | 2001年 / 40卷
关键词
hydrated cellulose fibers; boric acid; nitriding; boron nitride fiber; morphology; texture;
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学科分类号
摘要
The effect of preliminary heat treatment (PHT) for hydrated cellulose fibers impregnated with boric acid on the composition and structure of nitrided products is studied. Subsequent nitriding after PHT in helium leads to formation of carbon fibers coated with boron nitride, but after PHT in air there is formation of hexagonal and rhombohedral boron nitride powder. Data obtained are compared with results reported previously.
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页码:537 / 543
页数:6
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