Hits:

Date of Publication:2010-01-01

Journal:复合材料学报

Affiliation of Author(s):材料科学与工程学院

Volume:27

Issue:2

Page Number:1-8

ISSN No.:1000-3851

Abstract:To solve the conflict about the effects of particle size on
   magnetostrictive properties of polymer-bonded Terfenol-D composites
   studied by different scholars,Terfenol-D/unsaturated polyester resin
   composites were prepared with 20%volume fraction Terfenol-D powders in
   six particle-size ranges(30～53mum,53～150 mum,150～300mum,300～450
   mum,450～500 mum and 30～500mum).The static and dynamic magnetostrictive
   properties, magnetomechanical coupling coefficient, Young's modulus and
   compressive strength were tested. The results indicate that the
   composite with particles of 53～150mum distribution presents the largest
   static and dynamic magnetostrictive properties among all the five
   monodispersed distribution samples. The sample with particle size in
   30～500mum shows even larger response than that with 53～150 mum particle
   size distribution.It indicates that the particle size plays a
   double-edged sword on magnetostrictive properties of magnetostrictive
   composites.The existence of the optimal particle size to prepare
   polymer-bonded Terfenol-D composites results from the competition
   between the positive effects and negative effects of increasing the
   particle size.

Note:新增回溯数据