Boron – Iron – Neodymium
Boron – Iron – Neodymium
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DOI：
10.1007/978-3-540-69761-9_22
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发表时间：
2008
期刊：
影响因子：
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通讯作者：
A. Malfliet;G. Cacciamani;N. Lebrun;P. Rogl
中科院分区：
文献类型：
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作者：
A. Malfliet;G. Cacciamani;N. Lebrun;P. Rogl
在高达40at.%B[1985Mat，1987Tsa，1992Rag，1994Kno]，Fe[1986Sch，1987Hen]和Nd[1991La1,1991La2]富拐角的部分液相线表面已被广泛研究。在三元反应的顺序以及τ-1、Nd2B5、Nd4、τ-2和τ-3相的组成和均一范围上观察到了差异。在等温和多温B-Fe-ND截面[1986Bus1,1986Bus2,1986Che，1986Sch，1987Tsa，1990Hao，1991Lan3,1994Kno]上进行了几次实验研究。样品通常是在惰性气氛下通过电弧熔炼纯元素和/或B-Fe中间合金来制备的。样品在合适的温度下在Ta容器中热处理后，用经典方法(DTA、LOM、SEM)进行了研究。在少数情况下，使用了扩散偶技术。[1995Hal]对该体系进行了热力学模拟和评价：这对于讨论不同实验结果之间存在的差异和矛盾是非常有帮助的。后来，由于[1994Kno]和[1995Hal]的新数据，在[2003Rag]中进行了重新评估。表1包括了关于相平衡、晶体结构和热力学的所有实验数据。
Partial liquidus surfaces have been extensively studied up to 40 at.% B [1985Mat, 1987Tsa, 1992Rag, 1994Kno], in the Fe [1986Sch, 1987Hen] and in the Nd [1991Lan1, 1991Lan2] rich corners. Discrepancies were observed on the sequence of the ternary reactions as well as on the compositions and the homogeneity ranges of the τ1, Nd2B5, NdB4, τ2 and τ3 phases. Several experimental investigations have been carried out on isothermal and polythermal B-Fe-Nd sections [1986Bus1, 1986Bus2, 1986Che, 1986Sch, 1987Tsa, 1990Hao, 1991Lan3, 1994Kno]. Samples were generally prepared by arc melting the pure elements and/or a B-Fe master alloy under an inert atmosphere. After annealing in Ta containers at an appropriate temperature samples were investigated by classical methods (DTA, LOM, SEM). In a few cases diffusion couples technique was used. A thermodynamic modelling and assessment of the system was performed by [1995Hal]: this was very helpful in discussing discrepancies and contradictions present between the different experimental results.[1992Rag] first reviewed the ternary system B-Fe-Nd. Later, due to the new data of [1994Kno] and [1995Hal] a reassessment has been done in [2003Rag]. Table 1 included all experimental data on phase equilibria, crystal structure and thermodynamics.