摘要
铁磁NiMnGa形状记忆合金在磁场控制下不仅具有可与形状记忆合金相比的、大的输出应变和应力,而且具有高的能量密度和可与压电材料相比的、高的频率响应和可精确控制的特性。系统阐述了近年来铁磁Ni-Mn-Ga系统的结构、微结构、相变机理、形状记忆效应及其在应用方面的一些新的研究成果,着重澄清了一些易混淆的基本概念,并探讨了存在的问题和可能的解决途径。
Ferromagnetic NiMnGa shape memory alloys demonstrate not only a large strain and stress compared with other shape memory alloys but also a high energy density,fast frequency response and high precision of control compared with piezoelectric materials. Recent developments in research on the structure,microstructure,transition mechanism, shape memory effect and applications of ferromagnetic NiMnGa system is systematically summarized. Some confusable basic concepts are clarified. The present problems and their possible solutions are discussed.
出处
《材料导报》
EI
CAS
CSCD
2003年第8期1-4,共4页
Materials Reports
基金
上海市启明星项目(No.98QE14029)
