• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>Active Materials: Behavior and Mechanics >Forced Volume Magnetostriction in Composite Gd_5Si_2Ge_2
【24h】

Forced Volume Magnetostriction in Composite Gd_5Si_2Ge_2

机译：复合Gd_5Si_2Ge_2中的强制体积磁致伸缩

获取原文
获取原文并翻译 | 示例
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

A -1200 ppm forced volume magnetostriction has been obtained in a, resin-bonded, Gd_5Si_2Ge_2 participate composite. The strain is a result of a magnetically induced phase transformation from a high volume (high temperature, low magnetic field) monoclinic phase to a low volume (low temperature, high magnetic field) orthorhombic phase. The particles used in the composite were ball-milled from a bulk sample and sieved to obtain a size distribution of ≤ 600 μm. Bulk Gd_5Si_2Ge_2 was manufactured via arc melting and subsequently annealed at 1300 ℃ for 1 hour to produce a homogenous, polycrystalline sample. The transformation temperatures of the bulk sample, as measured using a Differential Scanning Calorimeter (DSC), were M_s = -9.3 ℃, M_f = -14.6 ℃, A_s = -4.4 ℃, and A_f = -1.2 ℃. The composite and the bulk samples were magnetically characterized using a SQUID magnetometer, and found to undergo a paramagnetic to ferromagnetic transition during the phase transformation, consistent with published results. The bulk sample was also found to possess a maximum linear magnetostriction of-2500 ppm.
机译：在树脂结合的Gd_5Si_2Ge_2参与复合物中获得了-1200 ppm的强制体积磁致伸缩。应变是磁感应相从高体积（高温，低磁场）单斜晶相转变为低体积（低温，高磁场）正交晶相的结果。将复合材料中使用的颗粒从大块样品中进行球磨并过筛，以得到≤600μm的尺寸分布。通过电弧熔化制备块状Gd_5Si_2Ge_2，然后在1300℃退火1小时，以制备均匀的多晶样品。使用差示扫描量热仪（DSC）测量的大块样品的转变温度为M_s = -9.3℃，M_f = -14.6℃，A_s = -4.4℃和A_f = -1.2℃。使用SQUID磁力计对复合材料和块状样品进行磁性表征，发现在相变过程中经历了顺磁性到铁磁性的转变，这与已发表的结果一致。还发现大块样品具有-2500ppm的最大线性磁致伸缩。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号