Fabrication of Silicon Nitride Ceramics by Electrophoretic Deposition
| Autor: | Tohru Suzuki, Patrick S. Nicholson, Tetsuo Uchikoshi, Yoko Fukada |
|---|---|
| Rok vydání: | 2000 |
| Předmět: |
Materials science
Mechanical Engineering technology industry and agriculture Metals and Alloys Sintering engineering.material equipment and supplies Industrial and Manufacturing Engineering Electrophoretic deposition chemistry.chemical_compound Surface coating Fracture toughness Silicon nitride chemistry Coating visual_art Materials Chemistry visual_art.visual_art_medium engineering Ceramic Composite material Sol-gel |
| Zdroj: | Journal of the Japan Society of Powder and Powder Metallurgy. 47:1021-1025 |
| ISSN: | 1880-9014 0532-8799 |
| DOI: | 10.2497/jjspm.47.1021 |
| Popis: | Surface coating of Si3N4 powder with an alumina precursor was achieved by a sol-gel method using aluminum isopropoxide. Electrophoretic data showed the surface-coated Si3N4 powder behaved like alumina. Consolidation of the surface-coated powder was attempted by an electrophoretic deposition (EPD) technique. EPD rate was improved for the surface-coated powder. Sintering characteristics and fracture toughness were investigated for EPDed compacts. It was demonstrated that the surface coating of Si3N4 powder with alumina precursor had the advantage of not only the improvement of suspension stability, but also the addition of sintering aid. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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