通过不同退火温度对 Fe-Si-B 和 Fe-Co-Si-B 金属玻璃的磁机械性能进行调控，以满足致动应用需求。

Magnetomechanical Properties of Fe-Si-B and Fe-Co-Si-B Metallic Glasses by Various Annealing Temperatures for Actuation Applications.

机构信息

Aerospace Information Research Institute, Key Laboratory of Electromagnetic Radiation and Sensing Technology, Chinese Academy of Sciences, Beijing 100094, China.

School of Electronic Electrical and Communication Engineering, University of Chinese Academy of Sciences, Beijing 100049, China.

出版信息

Sensors (Basel). 2022 Dec 28;23(1):299. doi: 10.3390/s23010299.

DOI:10.3390/s23010299

PMID:36616897

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC9823445/

Abstract

Fe-based amorphous alloys have advantages of low iron loss and high effective permeability, which are widely used in sensors and actuators. Power efficiency is one of the most important indicators among power conversion applications. We compared the magnetomechancial power conversion factors of metallic glassy ribbons FeCoSiB (Vitrovac 7600) and FeSiB (Metglas 2605SA1). We investigated the crystallization process under different annealing temperatures and tested the magnetomechancial coupling factors (k) and quality factors (Q) by using resonant and anti-resonant methods. We found that the maximum coupling factor of the annealed Vitrovac ribbons was 23% and the figure of merits kQ was 4-7; however, the maximum coupling factor of the annealed Metglas ribbons was 73% and the maximum value of kQ was 16. We can observe that the Metglas 2605SA1 ribbons have higher values of the magnetomechanical power efficiency than those of the Vitrovac 7600 ribbons, which means they are better to be used in subsequent research regarding acoustically driven antennas.

摘要

铁基非晶合金具有铁损耗低、有效磁导率高等优点，广泛应用于传感器和执行器中。在功率转换应用中，功率效率是最重要的指标之一。我们比较了金属玻璃带材 FeCoSiB（Vitrovac 7600）和 FeSiB（Metglas 2605SA1）的磁机械功率转换系数。我们研究了不同退火温度下的结晶过程，并通过共振和反共振方法测试了磁机械耦合系数（k）和品质因数（Q）。我们发现，退火后的 Vitrovac 带材的最大耦合系数为 23%，kQ 的优值为 4-7；然而，退火后的 Metglas 带材的最大耦合系数为 73%，kQ 的最大值为 16。我们可以观察到，Metglas 2605SA1 带材的磁机械功率效率值高于 Vitrovac 7600 带材，这意味着它们更适合用于后续关于声驱动天线的研究。