期刊
JOURNAL OF APPLIED PHYSICS
卷 96, 期 6, 页码 3362-3365出版社
AIP Publishing
DOI: 10.1063/1.1775303
关键词
-
Nickel microspheres were produced by the spark erosion technique under both liquid nitrogen and water conditions. Density measurements and Scanning electron microscope analysis revealed that a significant portion of the Ni particles produced under the liquid nitrogen conditions are hollow spheres with a density of 6.67(4)g/cm(3) while the particles produced in water are primarily solid spheres with a density of 8.40(1)g/cm(3), close to the bulk nickel value of 8.90 g/cm(3). Nickel/polymer composites incorporating the hollow and solid nickel microspheres were manufactured with volume fractions of 25% and 36%, respectively. The hollow and solid nickel composites exhibited saturation magnetostrictions of -24 and -28 ppm, respectively. In addition, small quantities of Terfenol-D (Tb0.3Dy0.7Fe2) were spark eroded under liquid argon conditions with similar to10% by volume of the spark eroded particles being solid microspheres. Calculations indicate that aligned composites that incorporate these Terfenol-D microspheres could reach a strain value of 2000 ppm. (C) 2004 American Institute of Physics.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据