X-RAY-POWDER PROFILE ANALYSES ON NANOSTRUCTURED NIOBIUM METAL POWDERS

被引：23

作者：

PRADHAN, SK ^{[1
]}

CHAKRABORTY, T ^{[1
]}

SENGUPTA, SP ^{[1
]}

SURYANARAYANA, C ^{[1
]}

FREFER, A ^{[1
]}

FROES, FH ^{[1
]}

机构：

[1] UNIV IDAHO,INST MAT & ADV PROC,MOSCOW,ID 83844

来源：

NANOSTRUCTURED MATERIALS | 1995年 / 5卷 / 01期

关键词：

D O I：

10.1016/0965-9773(95)00005-Y

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Pure niobium powder was milled in a SPEX 8000 mill using hardened steel balls for I to 6 h. The X-ray diffraction peaks were analyzed using the Fourier Line Shape and Integral Breadth analysis techniques. The crystallite size decreased to 2.3 nm after 6 h of milling and a high degree of isotropy was observed in both the effective crystal size and microstrains. This behavior is significantly different from the bulk Nb metal, which is anisotropic.

引用

页码：53 / 61

页数：9

共 23 条

[11]

SUIEGEL RW, 1994, NANOSTRUCTURED MATE, V4, P121

[12] STRUCTURE AND PROPERTIES OF NANOCRYSTALLINE MATERIALS [J].