X-ray powder diffraction data for κ-Al2O3

被引：16

作者：

Halvarsson, M ^{[1
]}

Langer, V

Vuorinen, S

机构：

[1] Chalmers Univ Technol, Dept Phys, SE-41296 Gothenburg, Sweden

[2] Chalmers Univ Technol, Dept Inorgan Environm Chem, SE-41296 Gothenburg, Sweden

[3] Seco Tools AB, Res & Dev, SE-73782 Fagersta, Sweden

来源：

POWDER DIFFRACTION | 1999年 / 14卷 / 01期

关键词：

kappa-alumina;

D O I：

10.1017/S0885715600010332

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

lX-ray powder diffraction data for kappa-Al2O3 are reported. It was concluded that kappa-Al2O3 belongs to the orthorhombic crystal system with space group Pna2(1). The lattice parameters were found to be a=4.8351(3) Angstrom, b = 8.3109(5) Angstrom, c = 8.9363(3) Angstrom. There are 16 Al3+ and 24 O2- in the unit cell, and thus the number of chemical formulas in the unit cell, Z, is 8. The volume V of the unit cell is equal to 359.09(6) Angstrom(3) and the theoretical density D-x is 3.772 g/cm(3). The Smith-Snyder (F-20) and the de Wolff(M-20) values for these data are 136.1 (0.0059, 25) and 98.4, respectively. (C) 1999 International Centre for Diffraction Data. [S0885-7156(98)01602-9].

引用

页码：61 / 63

页数：3

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