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A Study on the Improvement of Interfacial Bonding Shear Strength of Ti50-Ni50 Shape Memory Alloy Composite

Ti_{50}-Ni_{50} 형상기억합금 복합체의 계면 접학 전단강도 향상에 관한 연구

  • Published : 2000.10.01

Abstract

In this paper, single fiber pull-out test is used to measure the interfacial bonding shear strength of $Ti_{50}-Ni_{50}$ shape memory alloy composite with temperature. Fiber and matrix of $Ti_{50}-Ni_{50}$ shape memory alloy composite are respectively $Ti_{50}-Ni_{50}$ shape memory alloy and epoxy resin. To strengthen the interfacial bonding shear stress, various surface treatments are used. They are the hand-sanded surface treatment, the acid etched surface treatment and the silane coupled surface treatment etc.. The interfacial bonding shear strength of surface treated shape memory alloy fiber is greater than that of surface untreated shape memory alloy fiber by from 10% to 16%. It is assured that the hand-sanded surface treatment and the acid etched surface treatment are the best way to strengthen the interfacial bonding shear strength of $Ti_{50}-Ni_{50}$ shape memory composite. The best treatment condition of surface is 10% HNO$_3$ solution in the etching method to strengthen the interfacial bonding shear strength of $Ti_{50}-Ni_{50}$ shape memory alloy composite.

Keywords

Shape Memory Alloy;Shape Memory Effect;Shape Memory Alloy Composite;Pull-out Test;Surface Treatment;Interfacial Bonding Shear Strength;Transformation Temperature;SMA

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