Obtaining of Nanocomposites in SiC-SiAlON and Al<sub>2</sub>O<sub>3</sub>-SiAlON System by Alumothermal Processes

• 作者: E. Nikoleishvili G. Tabatadze M. Mshvildadze N. Darakhvelidze N. Nizharadze T. Cheishvili Z. Kovziridze Z. Mestvirishvili
• 来源期刊: 电子器件冷却与温度控制期刊(英文)
• 学科: 医学
• 关键词: Composite SILICIUM Carbide Corundum SILICIUM NITRIDE Aluminum NITRIDE Mullite SIALON
• 年，卷（期）: 2014,（4）
• 页码范围: 105-117
• 页数: 13页
• 分类号: R73

摘要

Composites were obtained in the in SiC-SiAlON and Al2O3-SiAlON system. Physical-chemical processes going on at the obtaining of SiALON within the range of 800°C - 1500°C were studied. Charge compositions and sintering regime were selected. It was proved that X-SiALON was obtained at the sintering of kaolin-aluminum powder at 1500°C, while β-SiALON was formed at the sintering of SiC-Aluminum powder, silicium and Al2O3-aluminum powder, silicium at 1500°C. Corrosion properties of the materials were studied. Investigations were performed by the methods of X-Ray structural and microscopical analysis.