Summary of constitutional data on the Aluminum-Carbon-Titanium system
Summary of constitutional data on the Aluminum-Carbon-Titanium system
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DOI：
10.1007/bf02647559
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发表时间：
1994-08
期刊：
影响因子：
--
通讯作者：
M. A. Pietzka;J. Schuster
中科院分区：
文献类型：
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作者：
M. A. Pietzka;J. Schuster
结合文献评价和新的实验结果，研究了钛-铝-碳三元体系的组成。该系统存在三个三元相：Ti3AlC、Ti2AlC和新发现的Ti3AlC2。通过湿化学方法分析，这三个相相对于它们的“理想≓化学计量比”都是缺碳的，这是基于晶体结构公式的。Ti2AlC和Ti3AlC的熔化速度分别为1625±10‡和1580±10‡。Ti3AlC2在固态中分解。实验研究的1000和1300‡的两个等温截面得到了热化学计算的证实。给出了液线表面的投影，并提出了将该液相线投影与观察到的等温截面相联系的反应方案。
The constitution of the titanium-aluminum-carbon ternary system has been investigated combining critical evaluation of literature data with new experimental results. Three ternary phases occur in this system: Ti3AlC, Ti2AlC, and newly discovered Ti3AlC2. As analyzed by wet chemistry methods, all three phases are carbon deficient with respect to their “ideal≓ stoichiometry, which is based on the crystal structure formula. Ti2AlC and Ti3AlC melt incongruently at 1625 ± 10 ‡ and 1580 ± 10 ‡, respectively. Ti3AlC2decomposes in the solid state. The two isothermal sections at 1000 and 1300 ‡ investigated experimentally are corroborated by thermochemical calculations. A projection of the liquidus surface is given, and a reaction scheme linking this liquidus projection with the isothermal sections observed is proposed.