摘要
采用高压技术结合热处理成功地获得了β-FeSi2材料。采用X射线衍射仪分析了退火时间等实验参数对Fe-Si合金相变的影响,借助扫描电子显微镜考察了样品退火后的微观形貌。结果表明在850℃的条件下保温保压30min后淬冷,生成以α-FeSi2、ε-FeSi为主的Fe-Si金属间化合物,随着热处理时间延长β-FeSi2逐渐增多。
β-FeSi2was prepared successfully by high pressure technique combining with heat treatment method.The effect between phase change of Fe-Si alloy and heat treatment time was charactered by X-ray diffraction.The micro structure was investigated by electronic scanning electron microscopy（SEM）.The measurement re-sults show that： the Fe-Si alloys with the main phases of α-FeSi2,ε-FeSi could be synthesized by high pressure and high temperature（HPHT） pressure.Combining with long time heat treatment could helpful to form β-Fe-Si2alloys.
出处
《功能材料》
EI
CAS
CSCD
北大核心
2011年第B11期967-969,共3页
Journal of Functional Materials
基金
黑龙江省教育厅骨干教师支持资助项目(1154G10)
关键词
Β-FESI2
热电材料
高压
铁-硅
β-FeSi2
thermoelectric materials
highpressure
iron and silicon
作者简介
郑友进（1974-），男，黑龙江人，博士，副教授，硕士生导师，主要从事超硬材料的合成及热电材料的研究与合成。
