THE CRYSTAL-STRUCTURE OF NA3NB12O31F DETERMINED BY HREM AND IMAGE-PROCESSING

被引:19
作者
LI, DX [1 ]
HOVMOLLER, S [1 ]
机构
[1] UNIV STOCKHOLM,ARRHENIUS LAB,S-10691 STOCKHOLM,SWEDEN
关键词
IMAGE PROCESSING - Computer Applications - SODIUM COMPOUNDS - Structure - SOLIDS - Microscopic Examination;
D O I
10.1016/0022-4596(88)90046-1
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
A new type of GTB-like structure of Na//3Nb//1//2O//3//1F has been studied by high-resolution electron microscopy (HREM) in combination with computerized image processing. The structure of Na//3Nb//1//2O//3//1F is tetragonal (space group P4) with a equals b equals 1. 749 and c equals 0. 3944 nm. The coordinates of the Nb atoms obtained by HREM and image processing agreed with the coordinates from an X-ray diffraction study within 0. 013 nm.
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页码:5 / 10
页数:6
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