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Si3N4／Cu68Ti20Ni12的界面結(jié)構(gòu)及連接強度
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TG454

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江蘇省自然科學基金資助(BK2002602)


Investigation on the Interface Structure and Joining Strength of Si3N4 / Cu68Ti20Ni12
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    摘要:

    采用Cu68Ti20Ni12釬料進行了Si3N4／Si3N4的活性釬焊連接。結(jié)果表明：釬焊溫度和時間對連接強度有重要影響；在1373K，10min的連接條件下，Si3N4/Si3N4連接強度達到最大值289MPa。通過對Si3N4／Cu68Ti20Ni12界面區(qū)的微觀分析：發(fā)現(xiàn)Ti，Ni明顯向Si3N4方向富集，相對Ni而言，Ti的富集區(qū)更靠近Si3N4陶瓷，而Si則向釬料方向擴散，Cu在接頭中心富集：界面區(qū)存在2層反應層，反應層Ⅰ為TiN層，而反應層Ⅱ則由TiN，Ti5Si4，Ti5Si3，Ni3Si及NiTi化合物組成。

    Abstract:

    Joining of Si3N4 / Si3N4 was carried out by using Cu68Ti20Ni12 fill metal. The results show that brazing temperature and holding time have an important influence on joining strength, and the highest strength value (289 MPa) was achieved at the brazing temperature of 1 373 K for 10 minutes. Microanalysis of the Si3N4/ Cu68Ti20Ni12 interfacial region showthat Ti and Ni concentrate towards Si3N4 and the enriched area of Ti is closer to Si3N4 ceramics, while Si diffuses towards braze layer and Cu element is concentrated in the center part of the joint; Interfacial region has two reaction layer. Reaction layer I is TiN while reaction layer II consists of TiN, Ti5Si4, Ti5Si3, Ni3Si and NiTi compounds .

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鄒家生 吳斌 趙其章. Si3N4／Cu68Ti20Ni12的界面結(jié)構(gòu)及連接強度[J].稀有金屬材料與工程,2005,34(1):102~106.[Zou Jiasheng, Wu Bing, Zhao Qizhang. Investigation on the Interface Structure and Joining Strength of Si3N4 / Cu68Ti20Ni12[J]. Rare Metal Materials and Engineering,2005,34(1):102~106.]
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  • 最后修改日期:2003-04-28
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