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SHEN Yanxu, LIN Tiesong, HE Peng, ZHU Ming, ZHANG Zhihui, LU Fengjiao. Sn behavior over Si3N4/2024Al composite surface in wetting test of Sn-Zn alloy[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2013, (7): 59-62.
Citation: SHEN Yanxu, LIN Tiesong, HE Peng, ZHU Ming, ZHANG Zhihui, LU Fengjiao. Sn behavior over Si3N4/2024Al composite surface in wetting test of Sn-Zn alloy[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2013, (7): 59-62.
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Sn behavior over Si3N4/2024Al composite surface in wetting test of Sn-Zn alloy

  • 1.

    State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology, Harbin 150001, China

  • 2.

    The Armored Units School of the Chinese People's Liberation Army, Changchun 130000, China

  • 3.

    Jiangsu Shuangliang New Energy Equipment Co. , Ltd. , Jiangyin 214444, China

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  • Received Date: May 20, 2012
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    • Abstract
  • Sn-Zn alloy is employed to conduct wetting tests over Si3N4/2024Al composite (45% Si3N4) in vacuum under different temperatures.On surface of the composite formed a thick Sn diffusion layer,and then the layer grows thicker as temperature increases.At 530℃,Sn diffusion layer thickness reached 1300 μm,while diffusion is not observed when temperature is below 330℃.Sn diffusion mechanism was studied based on Young's equation and cavity theory by five groups contrast tests.The results indicated that the volatilization of Zn in vacuum and second phase strengthening particles are necessary to accomplish Sn layer.
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