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超聲作用下活性釬料在石墨表面的鋪展行為
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蘭州理工大學(xué),蘭州理工大學(xué)材料學(xué)院,蘭州理工大學(xué)材料學(xué)院

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TG 454

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國家自然基金資助項目(51465032)


Spreading Behaviors of Active Solder Droplets on the Surface of Graphite by ultrasonic Vibration
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Lanzhou University of Technology State key laboratory of gansu province advanced processing and recycling of nonferrous metals,Lanzhou University of Technology State key laboratory of gansu province advanced processing and recycling of nonferrous metals,Lanzhou University of Technology State key laboratory of gansu province advanced processing and recycling of nonferrous metals

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    摘要:

    本文采用超聲波輔助鋪展?jié)櫇窦夹g(shù),進行了活性釬料在多孔材料石墨表面的動態(tài)鋪展實驗。通過采用高速攝像技術(shù)對超聲波作用下釬料鋪展過程的外部特征進行捕捉、描述和分析,研究了超聲波作用下活性釬料在石墨表面的鋪展行為及其機理。研究結(jié)果表明,超聲波在石墨表面振幅衰減很快,這使得超聲波作用下的聲致鋪展作用在石墨表面很難進行,但隨著石墨表面的孔洞被釬料填充,振幅衰減逐漸減小,聲致鋪展作用逐漸加強,在超聲波功率足夠大的情況下,液態(tài)釬料可以在石墨表面鋪展。釬料表面氧化膜是阻礙釬料鋪展的關(guān)鍵因素,通過施加超聲波可去除釬料表面氧化膜促進釬料鋪展。

    Abstract:

    The dynamic spreading experiment of active solder on the surface of the porous graphite had been completed by the ultrasonic-assisted spreading technology. In this paper, the spreading process of an active solder droplet was captured by a high-speed camera. And the external characteristics of spreading under the action of the ultrasonic were analyzed. The spreading behavior and mechanism of active solder droplets on the surface of the graphite were studied under the action of ultrasonic wave .The results showed that ultrasonic amplitude was been decayed quickly in the surface of graphite, which makes it impossible for acoustic spreading on the surface of graphite. However, as these holes on the surface of the graphite were filled with solder, amplitude attenuation was decreased, acoustic spreading function was strengthen gradually. In the case of ultrasonic power is large enough, the liquid solder can spread on the graphite surface. Solder surface oxidation film is the key factors that hinder the solder spreading. The surface oxidation film of solder can be removed by ultrasonic vibration.

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俞偉元,顏澤華,劉新亞.超聲作用下活性釬料在石墨表面的鋪展行為[J].稀有金屬材料與工程,2018,47(9):2881~2887.[yu weiyuan, Yan Zhehua, Liu Xinya. Spreading Behaviors of Active Solder Droplets on the Surface of Graphite by ultrasonic Vibration[J]. Rare Metal Materials and Engineering,2018,47(9):2881~2887.]
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  • 收稿日期:2016-11-21
  • 最后修改日期:2017-03-22
  • 錄用日期:2017-04-13
  • 在線發(fā)布日期: 2018-11-01
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