کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1466945 990081 2010 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Ferromagnetic microwires enabled polymer composites for sensing applications
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
Ferromagnetic microwires enabled polymer composites for sensing applications
چکیده انگلیسی

In the present work, sensing functionalities are introduced into structural composites via embedded magnetic microwires. A systematic study on the structure and functionalities of microwires and their composites is performed. The single-wire composite shows a significant giant magnetoimpedance (GMI) effect of up to 320% in a frequency range of 1–100 MHz due to stress enhanced transverse magneto-anisotropy. With increasing quantities of embedded wires from 1 to 3, the maximum GMI ratio is enhanced significantly by more than 35%, making the resultant composite favourable for field sensing applications. The microwire-composite also shows superior stress-sensing resolution as high as 134.5 kHz/microstrain, which is about 26 times higher than the recently proposed SRR-based sensor. As evidenced by the structural examination and tensile tests, the extremely small volume fraction of microwires (∼0.01 vol.%) allows the wire-composites to retain their mechanical integrity and performance.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Composites Part A: Applied Science and Manufacturing - Volume 41, Issue 12, December 2010, Pages 1823–1828
نویسندگان
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