Metallurgical reactions controlling the brazing of Al2O3 with Ag-Cu-Ti filler alloys

被引:30
|
作者
Paulasto, M [1 ]
Kivilahti, J [1 ]
机构
[1] Helsinki Univ Technol, Dept Mat Sci & Engn, FIN-02150 Espoo, Finland
基金
芬兰科学院;
关键词
D O I
10.1557/JMR.1998.0046
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Metallurgical reactions controlling the Ti activation in brazing of Al2O3 have been studied by means of microstructural and thermodynamic analysis. The reactions of titanium with oxygen and copper are shown to be decisive in active brazing. The miscibility gap in the Ag-Cu-Ti system divides the liquid braze into Ag-rich (L1) and TiCu-rich (L2) liquids. The liquid L2 reacts with alumina forming the mixed oxide (Ti, Al)(4)Cu2O. Besides with alumina, Ti reacts with oxygen that the filler alloys usually contain and forms a brittle ribbon composed of TixO and Ti-Cu-O phases in the braze, The formation of Ti oxides next to the alumina is possible only in the filler alloys of highest Ag content.
引用
收藏
页码:343 / 352
页数:10
相关论文
共 50 条
  • [31] Cu + TiB2 composite filler for brazing Al2O3 and Ti-6Al-4V alloy
    Yang, Minxuan
    Lin, Tiesong
    He, Peng
    JOURNAL OF ALLOYS AND COMPOUNDS, 2012, 512 (01) : 282 - 289
  • [32] A barrier layer approach to limit Ti scavenging in FeNiCo/Ag-Cu-Ti/Al2O3 active braze joints
    Vianco, PT
    Stephens, JJ
    Hlava, PF
    Walker, CA
    WELDING JOURNAL, 2003, 82 (09) : 252S - 262S
  • [33] Brazing of graphite and stainless steel with Ag-Cu-Ti filler: Effects of brazing process parameters on microstructure and mechanical properties
    Deng, Juanli
    Li, Hao
    Deng, Mengjia
    Xia, Xiaoyu
    Liu, Jiaolong
    Fan, Shangwu
    Zhang, Litong
    Cheng, Laifei
    MATERIALS TODAY COMMUNICATIONS, 2021, 28
  • [34] Microstructure and mechanical properties of Al2O3/Cu joints brazed with Ag-Cu-Ti plus Zn composite fillers
    Fan, Binbin
    Xu, Jingkun
    Lei, Huicong
    Zhao, Lin
    An, Di
    Xie, Zhipeng
    CERAMICS INTERNATIONAL, 2022, 48 (13) : 18551 - 18557
  • [35] Active metal brazing of SiO2-BN ceramic and Ti plate with Ag-Cu-Ti plus BN composite filler
    Yang, Z. W.
    Wang, C. L.
    Wang, Y.
    Zhang, L. X.
    Wang, D. P.
    Feng, J. C.
    JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY, 2017, 33 (11) : 1392 - 1401
  • [36] Microstructure of the Al2O3/Al2O3 joint brazed with Cu-Zn-Ti filler metal
    Fang, HY
    Yang, JG
    Yu, XY
    JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY, 2001, 17 : S186 - S188
  • [37] Microstructure of the Al2O3/Al2O3 joint brazed with Cu-Zn-Ti filler metal
    Fang, Hongyuan
    Yang, Jianguo
    Yu, Xiuyu
    Journal of Materials Science and Technology, 2001, 17 (SUPPL.):
  • [38] Brazing continuous carbon fiber reinforced Li2O-Al2O3-SiO2 ceramic matrix composites to Ti-6Al-4V alloy using Ag-Cu-Ti active filler metal
    Liu, D.
    Niu, H. W.
    Zhou, Y. H.
    Song, X. G.
    Tang, D. Y.
    Feng, J. C.
    MATERIALS & DESIGN, 2015, 87 : 42 - 48
  • [39] Wettability of transparent YAG (Y3Al5O12) by molten Ag-Cu-Ti alloys
    Gambaro, S.
    Muolo, M. L.
    Valenza, F.
    Cacciamani, G.
    Esposito, L.
    Passerone, A.
    JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, 2015, 35 (10) : 2895 - 2906
  • [40] EFFECTS OF BRAZING TEMPERATURE ON THE FRACTURE-TOUGHNESS OF AL2O3/AG-CU-0.5TI JOINTS
    CHO, HC
    YU, J
    SCRIPTA METALLURGICA ET MATERIALIA, 1992, 26 (05): : 797 - 802