Loading...
Please wait, while we are loading the content...
Hot isostatic pressing of ceramics
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Honma, K. |
| Copyright Year | 1985 |
| Description | A mixture containing glass 70 to 95 and BN or B4C powder (0.1-10 microns) 5 to 30 vol. % is used as a secondary pressure medium in hot isostatic pressing of ceramics. Thus, Pyrex beads were mixed with 15% vol. BN powder (average diameter 2 microns), fused at 1400 deg for 2 h, cooled, crushed, and put into a graphite crucible. A Si3N4 sintered body was embedded in the powder, heated in vacuum at 1200 deg for 2 h, treated in a hot isostatic press furnace at 1700 deg and 1000 atm. for 1 h, and cooled to give a Si3N4 ceramic. It was easily separated from the crucible. |
| File Size | 441500 |
| Page Count | 10 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19860005927 |
| Archival Resource Key | ark:/13960/t4cp20c8r |
| Language | English |
| Publisher Date | 1985-10-01 |
| Access Restriction | Open |
| Subject Keyword | Nonmetallic Materials Hot Pressing Vacuum Melting Sintering Hot Isostatic Pressing Silicon Nitrides Fusion Melting Isostatic Pressure Ceramics Powder Metallurgy Beads Borosilicate Glass Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |
