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Grinding Si3N4 Powder In Si3N4 EquipmentThree methods of grinding compared. Report based on study of grinding silicon nitride powder in preparation for sintering into solid ceramic material. Attrition, vibratory, and ball mills lined with reaction-bonded silicon nitride tested. Rates of reduction of particle sizes and changes in chemical compositions of powders measured so grinding efficiences and increases in impurity contents from wear of mills and media evaluated for each technique.
Document ID
19890000489
Document Type
Other - NASA Tech Brief
Authors
Herbell, Thomas P. (NASA Lewis Research Center, Cleveland, OH.)
Freedman, Marc R. (NASA Lewis Research Center, Cleveland, OH.)
Kiser, James D. (NASA Lewis Research Center, Cleveland, OH.)
Date Acquired
August 14, 2013
Publication Date
September 1, 1989
Publication Information
Publication: NASA Tech Briefs
Volume: 13
Issue: 9
ISSN: 0145-319X
Subject Category
FABRICATION TECHNOLOGY
Report/Patent Number
LEW-14821
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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