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七十年代后期,对于以过渡金属为基体的金属玻璃,熔旋制作技术有所发展,这导致对这些非晶金属系的磁性进行大量研究.通过测量加磁场下棒形样品的弹性谐振频率,最早观察到很高的磁弹耦合因数.这些材料现已发展为换能器的有效的原料. 金属玻璃是以熔化态投到旋转铜轮而进行快速淬火制成的,形成10—50μm厚的连续带.改变熔金属流的宽度可调节带的宽度,商业制品目前最宽可达6英寸(152.4cm).带的组成大约是80％的金属和20％的“玻璃形成”原素,如B、C、P和Si等.具有最好磁弹性质的合成物,是含有不同玻璃形成体组合的
In the late seventies, for the transition metal-based metallic glass, the melt spinning technology developed, which led to a large number of studies on the magnetic properties of these amorphous metals.By measuring the elastic resonant frequency of the rod-shaped samples under magnetic field, The earliest observed magnetostrictive coupling factors have been developed as effective raw materials for transducers, which are made by rapid quenching by casting into a rotating copper wheel in the molten state to form 10-50 μm thick Continuous Belts. Changing the Width of the Molten Metal Flow Adjusts the width of the tape, up to a maximum of 6 inches (152.4 cm) wide for commercial products today. The composition of the tape is about 80% metal and about 20% “glass-forming” B, C, P and Si, etc. The composition with the best magnetoelastic properties is a mixture of different glass-forming compositions