期刊
JOURNAL OF CRYSTAL GROWTH
卷 234, 期 2-3, 页码 431-434出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/S0022-0248(01)01701-8
关键词
defect; floating zone technique; borides
Single crystals of LaB6 were prepared by the RF-heated floating zone method. CaB6 was used as an additive of boron because calcium violently evaporates during melting and boron remains. When 6 wt% of CaB6 was added to the feed rod, the molten zone had almost the congruent composition. The single crystals without inclusions were obtained at a rate of 2 cm/h, twice as fast as that in conventional growth. The Ca content was 100 ppm in the crystals. (C) 2002 Published by Elsevier Science B.V.
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