Synthesis and microstructural characterization of Ti-Al3Ti metal-intermetallic laminate (MIL) composites
Synthesis and microstructural characterization of Ti-Al3Ti metal-intermetallic laminate (MIL) composites
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DOI：
10.1016/j.scriptamat.2004.09.010
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发表时间：
2005-02-01
影响因子：
6
通讯作者：
He, LH
中科院分区：
文献类型：
--
作者：
Peng, LM;Wang, JH;He, LH
采用不同初始厚度的Ti箔和Al箔，通过真空反应烧结制备了Ti-Al 3 Ti叠层复合材料。通过形成铝化钛金属间化合物来消耗铝层。因此，最终的微观结构由金属间化合物和未反应的Ti金属的交替层组成。通过扫描电子显微镜（SEM）、X射线衍射（XRD）和能量色散谱（EDX）的微观结构表征表明，仅形成金属间Al 3 Ti，这可以在相选择的热力学和动力学方面以及通过在液体Al存在下发生的扩散过程来合理化。由爱思唯尔有限公司出版。保留所有权利。
Ti-Al3Ti laminated composites have been fabricated through reactive sintering in vacuum using Ti and Al foils with different initial thicknesses. The aluminum layer is consumed by forming a titanium aluminide intermetallic compound. Thus, the final microstructure consists of alternating layers of intermetallic compound and unreacted Ti metal. Microstructural characterization by scanning electron microscopy (SEM), X-ray diffractometry (XRD) and energy dispersive spectroscopy (EDX) has shown that only the intermetallic Al3Ti is formed, which can be rationalized in terms of thermodynamics and kinetics of phase selection, as well as by the diffusion processes occurring in the presence of liquid Al. (C) 2004 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.