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论文类型：期刊论文

发表时间：2009-12-01

发表刊物：Frontier Symposium of China Postdoctors on Materials Science

收录刊物：SCIE、EI、CPCI-S、ISTIC、Scopus

卷号：19

期号：6

页面范围：1454-1458

ISSN号：1003-6326

关键字：magnetostrictive composites; Terfenol-D; arrangement field; magnetostriction

摘要：Non-aligned and aligned polymer-bonded Tb(0.3)Dy(0.7)Fe(2) composites with 20% particle volume fraction were prepared under different arrangement fields (i.e. 0, 10 kA/m, 20 kA/m, 30 kA/m, 60 kA/m and 100 kA/m) during their gel process. Static magnetostriction, dynamic magnetostriction, elastic modulus and compressive strength of all specimens were tested and compared. Experimental results indicate that all the parameters are positively dependent on the arrangement field. The dependence is significant at low field levels, the critical value of which is 30 kA/m for the composites fabricated. No obvious improvement of the properties can be observed for a larger field. Such critical values are defined as the optimal arrangement field to manufacture magnetostrictive composites.