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Reliability of two sintered silicon nitride materials
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Pierce, L. A. Mieskowski, D. M. Sanders, W. A. |
| Copyright Year | 1985 |
| Description | Two types of sintered silicon nitride were evaluated in terms of reliability: an experimental high pressure nitrogen sintered material and a commercial material. The results show wide variations in strength for both materials. The Weibull moduli were 5.5, 8.9, and 11 for the experimental material at room temperature, 1200, and 1370 C, respectively. The commercial material showed Weibull moduli of 9.0, 8.6, and 8.9 at these respective temperatures. No correlation between strength and flaw size was noted for the experimental material. The applicability of the Weibull and Griffith theories to processing defects on the order of 100 microns or less in size are discussed. |
| File Size | 731899 |
| Page Count | 16 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19850025971 |
| Archival Resource Key | ark:/13960/t8wb0284v |
| Language | English |
| Publisher Date | 1985-08-01 |
| Access Restriction | Open |
| Subject Keyword | Nonmetallic Materials Fracture Mechanics Statistical Analysis Sintering Mechanical Properties Griffith Crack Silicon Nitrides Ceramics Reliability Flexing Probability Density Functions Weibull Density Functions 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 |
