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Deformation processes in forging ceramicsThe deformation processes involved in the forging of refractory ceramic oxides were investigated. A combination of mechanical testing and forging are utilized to investigate both the flow and fracture processes involved. An additional hemisphere forging was done which failed prematurely. Analysis and comparison with available fracture data for AL2O3 indicated possible causes of the failure. Examination of previous forgings indicated an increase in grain boundary cavitation with increasing strain.
Document ID
19720015934
Acquisition Source
Legacy CDMS
Document Type
Contractor Report (CR)
Authors
Cannon, R. M. (Avco Corp. Lowell, MA, United States)
Rhodes, W. H. (Avco Corp. Lowell, MA, United States)
Date Acquired
September 2, 2013
Publication Date
April 18, 1972
Subject Category
Materials, Nonmetallic
Report/Patent Number
NASA-CR-126380
PR-2
Report Number: NASA-CR-126380
Report Number: PR-2
Accession Number
72N23584
Funding Number(s)
CONTRACT_GRANT: NASW-2187
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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