The Effects of Nitrogen Pressure and the Amount of Diluent on Y-α/β-Sialon by SHS
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摘要: 通过组成设计,以Si、Al和Y2O3为原料,Si3N4为稀释剂,利用燃烧合成法制备了Y-α/β-Sialon粉末。用XRD、化学分析法分别研究了α-Sialon、β-Sialon相组成和游离硅含量,讨论了氮气压力、稀释剂含量对生成物Y-α/β-Sialon中的相含量及其显微结构的影响。
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关键词:
- 燃烧合成 /
- Y-α/β-Sialon /
- 氮气压力 /
- 稀释剂
Abstract: Polyphase Y-α/β-Sialon powders were prepared by self-propagating high temperature synthesis method,with Si,Al,Y2O3 and Si3N4 as raw materials under high nitrogen pressure.The effects of nitrogen pressure and the amount of diluent on α',β'phase compositions and the amount of free Si was studied in detail. -
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