对石墨与铜采用非晶态TiZrNiCu钎料进行了真空钎焊.采用光学显微镜(OM OLMPUS)、扫描电镜(SEM,S-4700)、电子探针(EPMA,JXA8600)等分析手段对接头的界面微观组织进行观察分析,研究结果表明,钎缝中主要是金属间化合物生成相,如Cu-Ti,Cu-Zr,Ni-Ti系等,裂纹易产生于焊缝中尺寸较大的一个金属间化合物相上,Cu基固溶体的存在可以阻碍或延缓裂纹的扩展,对提高接头性能有利.在该实验条件下在950℃/15min工艺参数下获得的接头的电阻率低于5 mΩ,平均电阻为3.3mΩ,接头的抗剪强度为16.34MPa满足该接头作为换向器接头的使用要求.
参考文献
| [1] | Hirai T;Hiraga S;Shimada S;Takagi Y;Suda Y;Shimizu O;Kino H .Hydrogen-free CVD diamond synthesis with graphite rod heating[J].Journal of Crystal Growth,2008(5):1015-1018. |
| [2] | WHITE J L;PRICE R J .Hot-working of graphite for graphitematrix nuclear fuels[J].Carbon,1965,2(04):327-330. |
| [3] | 刘占军,郭全贵,宋进仁,刘朗,陈俊凌,李建刚.掺杂石墨作为面对等离子体材料的应用研究[J].核聚变与等离子体物理,2006(04):318-322. |
| [4] | GE Chang-chun;ZHOU Zhang-jian;SONG Shu-xiang et al.Progress of research on plasma facing materials in university of science and technology[J].Journal of Nuclear Materials,2007,363-365:1211-1215. |
| [5] | 陆安慧.炭材料科学的研究现状和发展趋势--Carbon 2006参会感[J].新型炭材料,2006(03):285-288. |
| [6] | ODEGARD JR B C;CADDEN C H;WATSON R D et al.A review of the US joining technologies for plasma facing compeonents in the ITER fusion reactor[J].Journal of Nuclear Materials,1998,258-263:329-334. |
| [7] | 邹贵生,吴爱萍,任家烈,高守传,任维佳,梁陈剑.热核聚变反应堆关键结构件的连接技术进展[J].焊接技术,2001(05):8-9. |
| [8] | 国家高技术新材料领域专家委员会 .新材料研究发展预测及对策[J].材料导报,1999,13(01):1-51. |
| [9] | WANG Ji-gang;JIANG Nan;JIANG Hai-yun .The high-temperatures bonding of graphite/ceramics by organ resin matrix adhesive[J].International Journal of Adhesion and Adhesives,2006,26(07):532-536. |
| [10] | Hidekazu Sueyoshi;Tomoyuki Nishida .Solid state bonding of graphite to SUS304 steel[J].Materials transactions,2000(3):414-419. |
| [11] | 宋敏霞,赵熹华,郭伟,冯吉才.钛合金与非金属材料扩散连接研究现状与发展[J].焊接,2005(10):9-12. |
| [12] | Salvo M.;Ferraris M.;Montorsi MA.;Matera R.;Lemoine P. .CU-PB RHEOCAST ALLOY AS JOINING MATERIAL FOR CFC COMPOSITES[J].Journal of Nuclear Materials: Materials Aspects of Fission and Fusion,1995(1/2):67-71. |
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