Carbothermal Synthesis of Nanocrystalline Aluminum Nitride Powders

A new precursor technique for the carbothermal synthesis of nanocrystalline AlN powder has been developed. A precursor that contains an intimate mixture of nanocrystalline Al2O3 and carbon has been synthesized by using a chemical pyrophoric reaction. The formation of AlN starts at 1473 K, and comple...

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Published inJournal of the American Ceramic Society Vol. 82; no. 1; pp. 257 - 260
Main Authors Pathak, Lokesh Chandra, Ray, Ajoy Kumar, Das, Samar, Sivaramakrishnan, C. S., Ramachandrarao, P.
Format Journal Article
LanguageEnglish
Published Westerville, Ohio American Ceramics Society 01.01.1999
Blackwell
Wiley Subscription Services, Inc
Subjects
Chemistry
Colloidal state and disperse state
Elements and non-metal compounds (oxides, hydroxides, hydrides, sulfides, carbides, ...)
Exact sciences and technology
General and physical chemistry
Inorganic chemistry and origins of life
Powders
Preparations and properties
Aluminium Nitrides
Carbothermy
Chemical preparation
Experimental study
Ultrafine powder
Nanocrystal
Powder
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Summary:A new precursor technique for the carbothermal synthesis of nanocrystalline AlN powder has been developed. A precursor that contains an intimate mixture of nanocrystalline Al2O3 and carbon has been synthesized by using a chemical pyrophoric reaction. The formation of AlN starts at 1473 K, and complete conversion has been observed at temperatures >1673 K. The synthesized AlN particles are nanocrystalline (<100 nm) in size.
Bibliography:istex:CA403887E818B7E00B928FEF5AC1D069C39FB282
ark:/67375/WNG-9L3HPH4V-9
ArticleID:JACE257
A. W. Weimer—contributing editor
ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0002-7820
1551-2916
DOI:10.1111/j.1151-2916.1999.tb01757.x