Measurement of internal tensile stress in Co_68.2Fe_4.3Cr_3.5Si₁₃B₁₁ glass-coated amorphous microwires using the stress sensitivity of saturation magnetostriction

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• 作者：Kaihuang Liu ; ^{lkh2020@163.com} ; Zhichao Lu ; Tiancheng Liu ; Deren Li
• 关键词：Internal stress ; Magnetic microwire ; Saturation magnetostriction ; Switching field
• 刊名：Journal of Magnetism and Magnetic Materials
• 出版年：2013
• 出版时间：August, 2013
• 年：2013
• 卷：339
• 期：Complete
• 页码：124-126
• 全文大小：384 K

文摘

The internal tensile stresses in Co_68.2Fe_4.3Cr_3.5Si₁₃B₁₁ glass-coated amorphous microwires are measured experimentally by using the stress sensitivity of saturation magnetostriction. The obtained results show that the internal tensile stress is 1420 MPa for microwire with metallic core diameter of 20.7 ¦Ìm and glass cover thickness of 14.5 ¦Ìm, while it decreases to 640 MPa after glass removal. The measured results agree well with the theoretical results calculated by Chiriac et al.