HIP glassmaking for high nitrogen compositions in the YSiON system
| Autor: | J.C. Mittl, P.V. Kelsey, R.L. Tallman, J.G. Jolley |
|---|---|
| Rok vydání: | 1985 |
| Předmět: |
Aluminium oxides
Materials science Metallurgy chemistry.chemical_element Nitride Condensed Matter Physics Nitrogen Electronic Optical and Magnetic Materials chemistry.chemical_compound Devitrification Fracture toughness chemistry Boron nitride Differential thermal analysis High nitrogen Materials Chemistry Ceramics and Composites |
| Zdroj: | Journal of Non-Crystalline Solids. 71:287-294 |
| ISSN: | 0022-3093 |
| DOI: | 10.1016/0022-3093(85)90298-4 |
| Popis: | A novel technique for melting high nitrogen glasses in a hot isostatic press is described. Melts were prepared in covered boron nitride crucibles at 1900°C and 30 ksi N2. Nitrogen contents, in equivalent per cent, ranged from 18% to 62% in increments of 11%. Fusion analysis revealed no losses of nitrogen from these melts. Devitrification and oxidation phenomena were studied by differential thermal analysis followed by X-ray diffraction of melt samples quenched from selected temperatures. The hardness and fracture toughness of the oxynitride glass increased with nitrogen content. |
| Databáze: | OpenAIRE |
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