播种
材料科学
溶剂
碳纤维
溶解度
化学工程
分析化学(期刊)
坩埚(大地测量学)
饱和(图论)
热力学
化学
物理化学
色谱法
复合材料
有机化学
物理
计算化学
工程类
组合数学
复合数
数学
作者
Koangyong Hyun,S. J. Kim,Toshinori Taishi
出处
期刊:Acta Physica Polonica A
[Institute of Physics, Polish Academy of Sciences]
日期:2019-05-01
卷期号:135 (5): 1012-1017
被引量:3
标识
DOI:10.12693/aphyspola.135.1012
摘要
The reaction between a carbon crucible and Si-Cr solvent, and the carbon solubility at SiC saturation in Si-Cr solvent were investigated using infrared absorption after combustion, field-emission scanning electron microscopy, and electron probe microanalysis.Si0.6Cr0.4,commonly used for silicon carbide crystal growth, was maintained in a carbon crucible at 1500-1950 • C for several minutes.The amount of carbon dissolved in the solvent was determined.The carbon content initially increased for 5 min, then remained constant until 10th min, and finally increased again with time at high temperature.According to microanalysis, the second increase in carbon content was due to the crystallization of small SiC grains in the solvent after reaching saturation, while the constant carbon content was due to the equilibrium between the SiC interlayer along the crucible wall and the solvent.Assuming the plateau of carbon content closely represented the carbon solubility at each temperature, a pseudo binary phase diagram was created for Si and C. Experimentally obtained constant carbon contents is in good agreement with the carbon solubilities calculated using CALPHAD.
科研通智能强力驱动
Strongly Powered by AbleSci AI