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Preparation of aluminum nitride fibers from alumina gel fibers by nitridation in ammonia

✍ Scribed by Li Zhang, Li Tong Zhang, Jing He, Zhi Jun Lin…


Book ID
120743442
Publisher
Springer
Year
2013
Tongue
English
Weight
459 KB
Volume
68
Category
Article
ISSN
0928-0707

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Alumina-γ-aluminum oxynitride composites
✍ J. Sappei; D. Goeuriot; F. Thevenot; Y. Laurent; J. Guyader; P. L'Haridon 📂 Article 📅 1991 🏛 Elsevier Science 🌐 English ⚖ 573 KB

By reaction between transition (7) aluminas .from boehmite and ammonia (T.~ IO00-1100°C), up to l%wt nitrogen can be .fixed in the form of a yaluminum oxynitride layer on 7-Al203 sulface grains. This layer delays the polymorphic transjormation of 7-into ~°AI20 3. For higher nitrogen contents, alumin