Metastable eutectic gas to solid condensation in the Al2O3–SiO2 system
Metastable eutectic gas to solid condensation in the Al2O3–SiO2 system
复制标题
Al2O3-SiO2 体系中亚稳态共晶气态凝结
DOI:
10.1063/1.478336
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发表时间:
1999
影响因子:
4.4
通讯作者:
J. Karner
中科院分区:
文献类型:
--
作者:
F. Rietmeijer;J. Karner
An analytical and transmission electron microscope study showed that nonequilibrium gas-to-solid condensation in an AlO–SiO vapor yielded solid units with well defined compositional peaks at 11.5 wt % Al2O3 and 41–47 wt % Al2O3. These peaks coincide with metastable eutectic points in the Al2O3–SiO2 phase diagram. The compositions of thermally annealed units support the presence of a (metastable) miscibility gap between ∼15–∼60 wt % Al2O3. The important finding in this analysis is the determinative role of metastable eutectics in nonequilibrium gas-to-solid condensation.