坩埚(大地测量学)
莫来石
材料科学
分解
碳纤维
动力学
化学工程
矿物学
热力学
大气温度范围
化学
陶瓷
复合材料
有机化学
计算化学
物理
工程类
复合数
量子力学
作者
Zhijun Xiao,Brian S. Mitchell
标识
DOI:10.1111/j.1151-2916.2000.tb01271.x
摘要
An investigation of the mullite decomposition mechanism and kinetics in the temperature range 1900—2000°C was conducted. SEM‐EDS and XRD analysis showed that the decomposition of mullite in this temperature range was primarily caused by the presence of carbon from furnace components. A reaction mechanism, in which gas‐phase SiO 2 reacts with carbon to form SiO and CO, is proposed; both IR analysis and kinetic studies support the proposed mechanism. The decomposition was completely suppressed by the introduction of a modified crucible assembly and the addition of excess SiO 2 to the reaction system. A mullite melt of stable composition was thus obtained, setting the groundwork for inviscid melt spinning mullite fiber making process development.
科研通智能强力驱动
Strongly Powered by AbleSci AI