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Crystallization of the glassy grain boundary phase in silicon nitride ceramics
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Drummond II, Charles H. |
| Copyright Year | 1991 |
| Description | The role was studied of the intergranular glassy phase in silicon nitride as-processed with yttria as a sintering aid. The microstructure, crystallization, and viscosity of the glassy phase were areas studied. Crystallization of the intergranular glassy phase to more refractory crystalline phases should improve the high temperature mechanical properties of the silicon nitride. The addition of a nucleating agent will increase the rate of crystallization. The measurement of the viscosity of the glassy phase will permit the estimation of the high temperature deformation of the silicon nitride. |
| File Size | 4357296 |
| Page Count | 136 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19910022647 |
| Archival Resource Key | ark:/13960/t20c9vs3n |
| Language | English |
| Publisher Date | 1991-08-01 |
| Access Restriction | Open |
| Subject Keyword | Solid-state Physics Viscosity Grain Boundaries Deformation Nucleation Crystallization Glass High Temperature Research Crystallinity Ceramics Refractory Materials Temperature Effects Sintering Silicon Nitrides Microstructure Yttrium Oxides Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
