发明名称 |
Method and Apparatus for High-Permeability Magnetostrictive/Piezo-Fiber Laminates Having Colossal, Near-Ideal Magnetoelectricity |
摘要 |
An ME composite laminate of at least one (1-3) piezo-fiber layer coupled with high-permeability alloy magnetostrictive layers, optionally formed of FeBSiC or equivalent. The composite laminate alternates the (1-3) piezo-fiber and high-permeability alloy magnetostrictive layers in a stacked manner. Optionally, the magnetization direction of the high-permeability alloy magnetostrictive layers and polarization direction of the piezo-fiber layer are an (L-L) arrangement. Optionally, thin film polymer layers are between the (1-3) piezo-fiber layer and high-permeability alloy magnetostrictive layers. Optionally, piezo-electric fibers within the (1-3) piezo-fiber layer are poled by inter-digitated electrodes supported by the thin film polymer, arranged as alternating symmetric longitudinally-poled “push-pull” units.
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申请公布号 |
US7771846(B2) |
申请公布日期 |
2010.08.10 |
申请号 |
US20070832564 |
申请日期 |
2007.08.01 |
申请人 |
VIRGINIA TECH INTELLECTUAL PROPERTIES, INC. |
发明人 |
VIEHLAND DWIGHT;DONG SHUXIANG;LI JIE-FANG;ZHAI JUNYI |
分类号 |
B32B15/04 |
主分类号 |
B32B15/04 |
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