Crystal growth kinetics of nanocrystalline aluminum prepared by mechanical attrition in nylon media

被引：30

作者：

De Castro, CL ^{[1
]}

Mitchell, BS ^{[1
]}

机构：

[1] Tulane Univ, Dept Chem & Biomol Engn, New Orleans, LA 70118 USA

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2005年 / 396卷 / 1-2期

基金：

美国国家航空航天局; 美国国家科学基金会;

关键词：

aluminum; grain growth; ball milling;

D O I：

10.1016/j.msea.2005.01.008

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Grain growth in nanocrystalline (nc) aluminum with an initial grain sizes of 22 and 40 nm produced by mechanical attrition using stainless steel and nylon media, respectively, was studied through X-ray diffraction, differential scanning calorimetry, and electron microscopy. Two-grain growth regimes are observed for aluminum milled in both nylon and stainless steel media. Grain growth occurred above T/T-M of 0.72 and 0.83 for samples milled in stainless steel and nylon, respectively. The enhanced stability of Al grain size milled in nylon is attributed to the nylon impurity (phase). (c) 2005 Elsevier B.V. All rights reserved.

引用

页码：124 / 128

页数：5