Process changes iterated under guidance of x-radiography. In recent work at NASA Lewis Research Center, density gradients in sintered silicon nitride, characterized by x-radiography, identified and appeared strongly dependent upon powder-processing and sintering conditions. NASA technical memorandum describes systematic investigation, based upon preliminary work, of density-gradient/flexural-strength relationships as affected by processing.
Optimization of Processing of Si3N4
NASA Tech Briefs ; 12 , 1
1988-01-01
Miscellaneous
No indication
English
Grinding Si3N4 Powder In Si3N4 Equipment
NTRS | 1989
|Processing of hot isostatic pressed Si3N4-components
Automotive engineering | 1986
|SiC-Si3N4 gradient composite ceramics by special HIP processing
Automotive engineering | 1991
|