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Effect of attrition milling on the reaction sintering of silicon nitrideSilicon powder was ground in a steel attrition mill under nitrogen. Air-exposed powder was compacted, prefired in helium, and reaction-sintered in nitrogen-4 v/o hydrogen. For longer grinding times, oxygen content, surface area and compactability of the powder increased; and both alpha/beta ratio and degree of nitridation during sintering increased. Iron content remained constant.
Document ID
19780066415
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Herbell, T. P. (NASA Lewis Research Center Cleveland, OH, United States)
Glasgow, T. K. (NASA Lewis Research Center Cleveland, Ohio, United States)
Yeh, H. C. (Cleveland State University Cleveland, Ohio, United States)
Date Acquired
August 9, 2013
Publication Date
May 1, 1978
Subject Category
Nonmetallic Materials
Meeting Information
Meeting: Annual Meeting of the American Ceramic Society
Location: Detroit, MI
Start Date: May 7, 1978
End Date: May 12, 1978
Sponsors: American Ceramic Society
Accession Number
78A50324
Funding Number(s)
CONTRACT_GRANT: EC-77-A-31-1040
Distribution Limits
Public
Copyright
Other

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