Fibre-reinforced intermetallic compounds by physical vapour deposition
Fibre-reinforced intermetallic compounds by physical vapour deposition
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DOI：
10.1016/0921-5093(94)03282-3
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发表时间：
1995-02
期刊：
影响因子：
6.4
通讯作者：
M. Wood;M. Ward-Close
中科院分区：
文献类型：
--
作者：
M. Wood;M. Ward-Close
本文介绍了 SiC 纤维增强 γ-Tial 和 MoSi2 金属间复合材料 (IMC) 的工作。采用电子束蒸发和蒸汽混合技术在 SiC 纤维上涂覆一层厚金属间化合物，并成功地将这些涂层纤维制成 IMC。金属间化合物对于高温结构应用具有有吸引力的特性，并且在过去 10 年中一直是大量研究工作的主题。通过合金化和热机械加工，在提高这些相当脆的材料的延展性方面取得了进展，特别是铝化钛 Ti3Al 和 TiAl。然而，整体式金属间化合物不太可能具有环境温度延展性和高温强度的正确组合以实现广泛的商业应用。进一步的进展取决于工程材料的开发，这些材料利用陶瓷、金属间化合物和金属的综合潜力来提供有吸引力的性能平衡。
This paper describes work on SiC fibre-reinforced γ-Tial and MoSi2intermetallic matrix composites (IMCs). Electron beam evaporation and vapour mixing were used to matrix-coat SiC fibre with a thick layer of intermetallic compound, and these coated fibres were successfully fabricated into IMCs. Intermetallic compounds have attractive properties for high-temperature structural applications and have been the subject of much research effort in the last 10 years. Progress has been made in improving the ductility of these rather brittle materials, particularly with the titanium aluminides Ti3Al and TiAl, by alloying and thermomechanical processing. However, it is unlikely that monolithic intermetallics will have the right combination of ambient temperature ductility and high-temperature strength to allow widespread commercial application. Further progress depends on the development of engineered materials which exploit the combined potential of ceramics, intermetallics and metals to give an attractive balance of properties.