کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7138358 | 1461917 | 2012 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Monitoring magnetostriction by a quantum tunnelling strain sensor
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
الکتروشیمی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Monitoring magnetostriction by a quantum tunnelling strain sensor Monitoring magnetostriction by a quantum tunnelling strain sensor](/preview/png/7138358.png)
چکیده انگلیسی
Hybrid materials offer the unique possibility to combine different functionalities of each component to obtain new classes of actuators or sensors. The hybrid material presented here consists of a macroscopic Terfenol-D crystal and a functional nanocomposite layer attached to its surface. The functional nanocomposite layer is made of polymer and Au nanoparticles in a regime near to the percolation threshold and embedded just below the polymer surface. Magnetically induced strain in the highly magnetostrictive Terfenol-D crystal leads to a change in interparticle distance between the metal nanoparticles and hence a change in quantum tunnelling properties through the two dimensional network of the Au nanoparticles. The electrical resistance of the nanocomposite layer allows direct measurement of the magnetically induced strain with a maximum change of 6% and can thus be used as a feedback sensor for the magnetostrictive actuator.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Sensors and Actuators A: Physical - Volume 183, August 2012, Pages 28-33
Journal: Sensors and Actuators A: Physical - Volume 183, August 2012, Pages 28-33
نویسندگان
Amit Kulkarni, Bodo Henkel, Christoph Bechtold, Vladimir Zaporojtchenko, Thomas Strunskus, Eckhard Quandt, Franz Faupel,