The compound, UA14, which forms during the peritectic reaction (Liquid + UA13 → UAI4), has a long needlelike shape and reveals the characteristic morphology of a fishtail when cut along the long axis. When cut perpendicular to the long axis, it shows an internal core of another phase, which has been identified as a primary aluminum solid solution. Because of the interesting relationship between the crystallographic structures of UA13 and UA14, the peculiar UA14 morphology can be explained on the basis of a proposed mechanism. The mechanism of UA13 to UA14 transformation has been identified as shear and diffusion controlled transformation. © 1975 American Society for Metals, The Melallurgical Society of AIME.
L. P. Lee and H. P. Leighly, "Mechanism Of UAI3 To UAI4 Transformation," Metallurgical Transactions A, vol. 6, no. 1, pp. 135 - 139, Springer; ASM International, Jan 1975.
The definitive version is available at https://doi.org/10.1007/BF02673681
Materials Science and Engineering
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01 Jan 1975