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Indexed by:期刊论文

Date of Publication:2012-03-01

Journal:JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS

Included Journals:SCIE、EI

Volume:324

Issue:6

Page Number:1205-1208

ISSN No.:0304-8853

Key Words:Magnetostrictive composite; Terfenol-D; Bond strength; Titanate coupling agent

Abstract:As a kind of composites, the bond strength between the polymer matrix and the Terfenol-D particles affects the performance of magnetostrictive composites. By observing the fracture morphologies, the bond strength of the magnetostrictive composites prepared with untreated Terfenol-D was proved weak. Titanate coupling agent was used for particles to improve the bond strength. Contact angle analysis indicates the work of adhesion of the epoxy resin to the treated Terfenol-D is larger than that to the untreated Terfenol-D. Different magnetostrictive composites with 20%, 35% and 50% particle volume fractions were prepared with treated and untreated Terfenol-D particles. Their static and dynamic magnetostriction was tested without pre-stress at room temperature. The results indicate titanate coupling agent treating increases the magnetostrictive properties of magnetostrictive composites, that is probably because the bond strength improves due to the particle treating. (C) 2011 Elsevier B.V. All rights reserved.