Crystal growth of MgAlB14-type compounds using metal salts and some properties
Crystal growth of MgAlB14-type compounds using metal salts and some properties
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DOI：
10.1016/j.jallcom.2007.01.187
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发表时间：
2008-06
影响因子：
6.2
通讯作者：
S. Okada;T. Shishido;T. Mori;K. Iizumi;K. Kudou;K. Nakajima
中科院分区：
文献类型：
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作者：
S. Okada;T. Shishido;T. Mori;K. Iizumi;K. Kudou;K. Nakajima
利用高温铝金属助熔剂中的金属盐（Li2CO3, LiF, LiI, MgO, MgF2, MgI2）和结晶硼生长LEAlB14（正交，Imam） （LE=Li, Mg）晶体。采用B/LE=2.0的起始混合物，以1:15-20的质量比加入Al金属，建立lealb14的生长条件。用金属盐制备的铝自熔剂中的lealb14晶体可以从所有不同的盐中得到。LiF和MgF2制备的lialb14和mgalb14晶体最大尺寸分别约为18和12mm。生长后lealb14的单元胞参数如下：LiAlB14由LiF获得，a=0.5846 (2) nm, b=0.8144 (2) nm, c=1.0355 (3) nm， V=0.4930 (2) nm3； MgAlB14由MgF2获得，a=0.5845 (2) nm, b=0.8114 (2) nm, c=1.0330 (3) nm， V=0.4899 (3) nm3。详细介绍了这些材料的显微硬度、抗氧化性和磁化率。
LEAlB14(orthorhombic, Imam) (LE=Li, Mg) crystals were grown using metal salts (Li2CO3, LiF, LiI, MgO, MgF2, MgI2) and crystalline boron from a high-temperature aluminium metal flux. The growth conditions for growing LEAlB14were established using the starting mixtures of B/LE=2.0, and Al metal was added to each mixture at a mass ratio of 1:15–20. LEAlB14crystals from the Al-self flux using metal salts could be obtained from all the different salts. The maximum dimensions of LiAlB14and MgAlB14crystals were approximately 18 and 12mm for the crystals obtained from LiF and MgF2. The unit-cell parameters of as-grown LEAlB14are as follows: for LiAlB14, obtained from LiF, a=0.5846 (2) nm, b=0.8144 (2) nm, c=1.0355 (3) nm, V=0.4930 (2) nm3: for MgAlB14, obtained from MgF2, a=0.5845 (2) nm, b=0.8114 (2) nm, c=1.0330 (3) nm, V=0.4899 (3) nm3. Microhardness, oxidation resistance and magnetic susceptibility of these materials are described in detail.