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Capsulation of moldings made from silicon ceramic material
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Rossmann, A. Schweitzer, K. Huether, W. |
| Copyright Year | 1985 |
| Description | Ceramic articles are potted for hot isostatic pressing by porous glass and/or ceramic coating which is sintered to a pressure-tight coating in vacuo. Thus, a powdered SiO2 glass mixture with saturated alcohol sterin is sprayed on a SI3N4 ceramic, dried, introduced into the press which is evacuated to less than 0.013 mbar and heated to approximately 1200 C to drive off the organic binder and leave a powdered glass coating on the ceramic. The coating is sintered by heating to approximately 1200 C for 0.5 to 2 hours and forms a tight gass-impermeable layer. The press is heated to approximately 1700 C at 1000-300 bar and isostatic pressing is performed in the conventional manner. |
| File Size | 333414 |
| Page Count | 8 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19860012209 |
| Archival Resource Key | ark:/13960/t88h3h672 |
| Language | English |
| Publisher Date | 1985-10-01 |
| Access Restriction | Open |
| Subject Keyword | Nonmetallic Materials Heat Treatment Hot Isostatic Pressing Isostatic Pressure Silicon Encapsulating Ceramics Molding Materials Coatings Potting Compounds Silicon Dioxide 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 |
