Mg-Al 合金中低温原位合成 SiC颗粒 / Synthesize SiC particles by low temperature in situ reaction method in Mg-Al alloys
- Resource Type
- Academic Journal
- Authors
- 王芬; 赵渊博; 朱建锋; 姜涛; 王鑫; WANG Fen; ZHAO Yuan-bo; ZHU Jian-feng; JIANG Tao; WANG Xin
- Source
- 陕西科技大学学报(自然科学版) / Journal of Shaanxi University of Science and Technology (Natural Science Edition). (1):52-56
- Subject
- 低温原位合成
Mg-Al合金
合成温度
low temperature in situ reaction
Mg-Al alloys
resultant temperature
- Language
- Chinese
- ISSN
- 1000-5811
以石墨粉、Si粉、Mg‐Al合金粉为原料,在氩气保护气氛炉下低温原位合成了SiC颗粒.通过XRD测试对SiC的合成温度、镁铝合金添加量进行了研究;通过SEM、EDS测试对合成SiC的形貌进行了分析,并对合成SiC颗粒的机理进行了研究.XRD结果表明:在800℃时Mg‐Al合金中合成了SiC颗粒,并且随着添加合金量的增加和温度的升高,合成的SiC含量也在增加.SEM 、EDS测试结果表明,合成的产物是片状SiC颗粒.其合成机理为原位两步反应合成法.
SiC particles were synthesized by low temperature in situ reaction method in Mg‐Al alloys under argon protective atmosphere using silicon powder and graphite as silicon source and carbon source ,respectively .The resultant temperature and the addition content of Mg‐Al alloys were analyzed with X‐ray diffraction .The microstructures and the morphology of the SiC particles were characterized using the scanning electron microscopy ,equipped with an energy dispersion spectrum (EDS) detector .The synthesis mechanism of SiC particles was investigated .The XRD results show that the synthesized temperature for SiC particles in Mg‐Al alloys at 800 ℃ and the content of SiC particles increased with the addition content of Mg‐Al alloys and increasing temperature .The SEM and EDS results indicated the production was SiC sheet particles .The results indicated that the synthesis mechanism is in situ two‐steps reaction method .