Phase Equilibria in the Systems SrO‐CuO and SrO‐1/2Bi2O3
Phase Equilibria in the Systems SrO‐CuO and SrO‐1/2Bi2O3
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SrO-CuO 和 SrO-1/2Bi2O3 体系中的相平衡
DOI：
10.1111/j.1151-2916.1990.tb07628.x
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发表时间：
1990
影响因子：
3.9
通讯作者：
C. Rawn
中科院分区：
文献类型：
--
作者：
N. Hwang;R. Roth;C. Rawn
用X射线衍射法研究了SrO-CuO和SrO-1/2Bi_2O_3体系的相平衡。化合物SrCuO 2和Sr 2CuO 3分别在1085° C和1225°C下熔化。新发现的化合物Sr 6 Bi 2 O 9在965°C下分解为SrO，Sr 3Bi 2 O 6在1210°C下不一致地熔化为SrO和液体。SrBi 2 O 4在1825 °C时发生相变，虽然两者都是非化学计量的，但低温相的SrO含量略低于高温相，SrO含量为33.5 mol%。
The phase equilibria of the systems SrO-CuO and SrO-1/2Bi2O3 were studied by X-ray diffraction analysis of quenched powder samples. The compounds SrCuO2 and Sr2CuO3 melt incongruently at 1085° and 1225°C, respectively. The newly found compound Sr6Bi2O9 decomposes at 965°C into SrO and Sr3Bi2O6 melts incongruently into SrO and liquid at 1210°C. SrBi2O4 undergoes a phase transition at ∼825°C, and although both are nonstoichiometric, the low-temperature phase is slightly poorer in SrO with 33.5 mol% SrO than the high-temperature phase.