Strain gauges of GaSbFeGa 1.3 eutectic composites

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• 作者：M.I. Aliyev ; A.A. Khalilova ; D.H. Arasly ; R.N. Rahimov ; M. Tanoglu and L. Ozyuzer
• 刊名：Applied Physics A: Materials Science & Processing
• 出版年：2004
• 出版时间：December 2004
• 年：2004
• 卷：79
• 期：8
• 页码：2075-2078
• 全文大小：201 KB
• 刊物类别：Physics and Astronomy
• 刊物主题：Physics
  Condensed Matter
  Optical and Electronic Materials
  Nanotechnology
  Characterization and Evaluation Materials
  Surfaces and Interfaces and Thin Films
  Operating Procedures and Materials Treatment
  
• 出版者：Springer Berlin / Heidelberg
• ISSN：1432-0630

文摘

A needle-shaped metallic FeGa_1.3 phase oriented in a specific direction and uniformly distributed within a GaSb matrix was grown by a vertical Bridgman method. Strain-gauge characteristics, such as strain-sensitivity coefficient (S), temperature coefficient of strain sensitivity (TCS) and temperature coefficient of resistance, of GaSb and GaSbFeGa_1.3 eutectic alloy have been investigated in the range of 200 to 400 K under deformation up to strains of 1.3×10-3. The value of S of the GaSbFeGa_1.3 composition is measured to be 40±5 and its TCS is about 0.2 %deg-1 when the current is perpendicular to the needles and the needles are parallel to the plane of the gauge substrate. The strain-sensitivity characteristics are linear and hysteresis free in the investigated temperature range in the aforementioned direction. It was found that GaSbFeGa_1.3-based strain gauges possess better deformation characteristics than GaSb-based gauges.