High temperature viscosity of nitrogen modified silica glass
| Autor: | Koji Tsukuma, Tomoyuki Akiyama |
|---|---|
| Rok vydání: | 2000 |
| Předmět: |
Materials science
technology industry and agriculture Mineralogy chemistry.chemical_element Sintering Modulus Young's modulus Porous glass musculoskeletal system Condensed Matter Physics Nitrogen Electronic Optical and Magnetic Materials Viscosity symbols.namesake chemistry Hot isostatic pressing Materials Chemistry Ceramics and Composites symbols Composite material Porosity |
| Zdroj: | Journal of Non-Crystalline Solids. 265:199-209 |
| ISSN: | 0022-3093 |
| DOI: | 10.1016/s0022-3093(00)00005-3 |
| Popis: | Incorporation of nitrogen in silica glass was conducted by sintering porous bodies of silica soot with absorbed NH3 gas. The properties, such as high temperature viscosity, internal friction and Young’s modulus, were evaluated and compared with those of several kinds of pure silica glasses. The nitrogen incorporation increased viscosity and Young’s modulus. From all results on both nitrogen-incorporated and pure silica glass, a relationship between Young’s modulus and density was deduced, and also a linkage between viscosity and internal friction was derived. The high temperature glass-foaming phenomenon due to nitrogen incorporation was studied. It was found that hot-isostatic pressing (HIP) treatment is effective for inhibiting foaming. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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