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Simulation on Magnetostriction Strain of Polymer-bonded Terfenol-D Composites

Journal of Materials Science & Technology 2003年第Z1期19卷 103-104页

作者： jiuchun yan shixiong lu shiqin yang shiyu he State Key Laboratory of Advanced Welding Production Technology Hanbin Institute of Technology Harbin 150001 China State Key Laboratory of Advanced Welding Production Technology Hanbin Institute of Technology Harbin 150001 China State Key Laboratory of Advanced Welding Production Technology Hanbin Institute of Technology Harbin 150001 China State Key Laboratory of Advanced Welding Production Technology Hanbin Institute of Technology Harbin 150001 China

A model of magnetostrictive strain for polymer-bonded Terfenol-D composite is presented, which is composed of asubmodel for the average strain of Terfenol-D composite and a magnetostriction submodel for Terfenol-D *** results show that the saturation magnetostriction λs is very closely with experimental results, althoughthere exists some difference between the calculated and the experimental results under low applied magnetic *** saturation magnetostriction of the composites increases with the particle fraction (v1=72.5～90 vol. Pct) in thesimulated and experimental results, but the simulation result is not ideal when the particle fraction is higher than 85%.

关键词： Polymer-bonded Terfenol-D composite, Magnetostriction, Simulation

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Simulation on Magnetostriction Strain of Polymer-Bonded Terfenol-D Composites

Simulation on Magnetostriction Strain of Polymer-Bonded Terf...

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The Fourth International Conference on Physical and Numerical Simulation of Materials Processing (ICPNS’2004)

作者： jiuchun yan , shixiong lu, shiqin yang and shiyu he State Key Laboratory of Advanced Welding Production Technology, Hanbin Institute of Technology, Harbin 150001, China

A model of magnetostrictive strain for polymer-bonded Terfenol-D composite is presented, which is composed of a submodel for the average strain of Terfenol-D composite and a magnetostriction submodel for Terfenol-D particles. Simulated results show that the saturation magnetostriction λs is very closely with experimental results, although there exists some difference between the calculated and the experimental results under low applied magnetic field. The saturation magnetostriction of the composites increases with the particle fraction (vI =72.5-90vol%) in the simulated and experimental results, but the simulation result is not ideal when the particle fraction is higher than 85%.

关键词： Terfend-D composite Saturation magnetostriction Polymet-bended

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Microstructure Characteristics of Interaction Layer of Zn-Al Eutectic Alloy with Al_2O_3p/6061Al Composites

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Journal of Materials Science & Technology 2004年第4期20卷 401-404页

作者： jiuchun yan, Zhiwu XU, shixiong lu and shiqin yangState Key Laboratory of Advanced Welding Production Technology, Harbin Institute of Technology, Harbin 150001, China Lab. of Adv. Welding Technol. Harbin Inst. of Technol. Harbin 150001 China

The interaction between Zn-AI eutectic alloy and Al203p/6061AI composites in the vacuum furnace was investigated. Great attention has been paid to the elements diffusion, the microstructure and formation of the interface between Zn-AI eutectic alloy and Al2O3p/6061AI composites. Experimental results show that Zn-AI eutectic alloy has a good wetting ability to Al2O3p/6061 Al composites and the wetting angle decreases with increasing the temperature in vacuum. After the interaction, an interaction layer forms between Zn-AI alloy and Al2O3p/6061 Al composites. The phases in the interaction layer mainly consist of α-AI(Zn), Al2O3 and CuZn5 resulted from the diffusion of elements from the Zn-AI alloy. Several porosities distribute in the region near the interface of the Zn-AI alloy/interaction layer. The amount of shrinkage voids in the interacting layer is relevant to the penetration of Zn element into Al2O3p/6061Al composites which is a function of temperature. So it is necessary to lower heating temperature in order to limit the Zn penetration.

关键词： Al2O3p/6061Al composites Zn-Al eutectic alloy Wetting Interface microstructure

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Simulation on Magnetostriction Strain of Polymer-Bonded Terfenol-D Composites

Simulation on Magnetostriction Strain of Polymer-Bonded Terf...

引用

The Fourth International Conference on Physical and Numerical Simulation of Materials (ICPNS’2004)

作者： jiuchun yan shixiong lu shiqin yang and shiyu heState Key Laboratory of Advanced Welding Production Technology Hanbin Instituteof Technology Harbin 150001 China

＜正＞A model of magnetostrictive strain for polymer-bonded Terfenol-D composite is presented, which is composed of a submodel for the average strain of Terfenol-D composite and a magnetostriction submodel for Terfenol-D particles. Simulated results show that the saturation magnetostriction λs is very closely with experimental results, although there exists some difference between the calculated and the experimental results under low applied magnetic field. The saturation magnetostriction of the composites increases with the particle fraction （v1 =72.5-90vol%） in the simulated and experimental results, but the simulation result is not ideal when the particle fraction is higher than 85%.

关键词： Terfend-D composite Saturation magnetostricticn Polymet-bended

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