X-RAY POWDER DIFFRACTION STUDY FORRE COMPOUND GdNiSn
(Institute of Materials Science，Guangxi University，Nanning 530004
*Tianjin Electronic Materials Research Institute，Tianjin 300192)
*Tianjin Electronic Materials Research Institute，Tianjin 300192)
Abstract: The compound GdNiSn has been studied by X-ray powder diffrattion technique. The crystal structure and the X-ray diffraction data for this compound at room temperature are reported. The compound GdNiSn is orthorhombic with lattice parameters a=7. 204 4 (1)A，b=7. 689 5(6)A，c=4.4772(4)A，space group Pna21 and 4 formula units of GdNiSn in unit cell. The Smith and Snyder figure of index F30 for this compound is 35(0. 015，59)
Key words: RE compound GdNiSn X-ray diffraction data crystal structure