Research on Magnetic Characteristics for Polymer-matrix Re-Fe Giant Magnetostrictive Composites

Jiang Min-Hong

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Research on Magnetic Characteristics for Polymer-matrix Re-Fe Giant Magnetostrictive Composites

更新时间：2023-11-28

- Research on Magnetic Characteristics for Polymer-matrix Re-Fe Giant Magnetostrictive Composites
- Advanced Engineering Sciences Vol. 41, Issue 5, Pages: 126-131(2009)
- 作者机构：
  
  1. 桂林电子科技大学
  2. 桂林电子科技大学信息材料科学与工程系
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2009，
  
  Published Online：1 December 2008，
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江民红,顾正飞,刘心宇,成钢,周怀营.高性能稀土-铁系超磁致伸缩复合材料的磁特性研究[J].工程科学与技术,2009,41(5):126-131.

Jiang Min-Hong. Research on Magnetic Characteristics for Polymer-matrix Re-Fe Giant Magnetostrictive Composites. [J]. Advanced Engineering Sciences 41(5):126-131(2009)
江民红,顾正飞,刘心宇,成钢,周怀营.高性能稀土-铁系超磁致伸缩复合材料的磁特性研究[J].工程科学与技术,2009,41(5):126-131. DOI：

Jiang Min-Hong. Research on Magnetic Characteristics for Polymer-matrix Re-Fe Giant Magnetostrictive Composites. [J]. Advanced Engineering Sciences 41(5):126-131(2009) DOI：

摘要

中文摘要: 以粉末粘结、模压成型方法，研制环氧树脂粘结稀土-铁系超磁致伸缩复合材料。采用电阻应变片技术，研究树脂含量、压应力大小对复合材料的磁致伸缩性能的影响规律。结果表明，当合金粉末与树脂体积比为9∶1时，在1 MP压应力下其饱和磁致伸缩系数高达1070×10^-6。树脂含量、压应力大小对复合材料的磁致伸缩特性的影响很大。过高或过低的树脂含量均不利于材料的磁致伸缩性能的提高，获得较高磁致伸缩性能时的合金粉末与树脂最优体积比为7∶3。较小压应力能提高材料的磁致伸缩性能，压应力进一步增大则磁致伸缩性能降低，特别是在低磁场下，在较大预加应力条件下测得的样品的磁致伸缩性能较低。获得较高磁致伸缩性能时的压应力为1 MPa。

Abstract

Abstract:Polymer matrix giant magnetostrictive composites were prepared by combining Tb0.30Dy0.7Fe1.95with epoxy. The effect of epoxy content and preload stress on the magnetostriction of composites was studied using standard strain gauge technique. The results showed that the magnetostriction of the composites of V alloy∶V E-44=9∶1 was 1070×10^-6 under 1 MPa preload stress. There were very marked effect of the epoxy content and preload stress on the magnetostriction of the composites. The excessive or lesser epoxy content went against the increasing of the magnetostriction for the composites. The composites had the biggest magnetostriction when V alloy∶V E-44=7∶3. The lesser preload stress had a positive effect on the magnetostriction of the composites

and the higher preload stress had a negative effect. The composites had the biggest magnetostriction when the preload stress was 1 MPa.

关键词

复合材料磁性材料粘结磁致伸缩压力效应

Keywords

compositesmagnetic materialsbondingmagnetostrictionpressure effects

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