没有氧的铜和 pre-metalized 石墨用 CuNiSnP 被以铜锌金焊接以铜锌金焊接由高频率正式就职加热的合金方法。界面的微观结构和反应阶段被扫描电子显微镜学(SEM ) 和精力分析散 X 光检查光谱学(版本) 。关节的力量和电阻被测试。当以铜锌金焊接的参数被优化时,关节的结构是graphite/,这被发现( Cu , Ni ) /Ni ( s.s ) +Ni x P y /Cu3 +eutectic 组织的 P+Cu ( s.s )(包括的 Sn )( Cu 3 P+Ni 3 P+Cu ( s.s ) /Cu ( s.s ) /Cu )。当温度增加到 750 ° C 或成立时间延长 s 到 300 时,最容易溶解的结构消失并且 Cu 3 P 增加。最大值砍关节的力量是 5.2 MPa,它在石墨和 metallization 的接口断裂。关节的抵抗是仅仅 5 mΩ 。
Oxygen-free copper and pre-metalized graphite were brazed using CuNiSnP braze alloy by high frequency induction heating method. Interracial microstructures and reaction phases were analyzed by scanning electron microscopy (SEM) and energy dispersive X-ray spectroscopy (EDS). The strength and resistance of the joints were tested. It is found that when the brazing parameters are optimized, the structures of the joints are graphite/(Cu,Ni)/Ni(s.s)+NixPy/Cu3P+Cu(s.s) (including Sn)+eutectic structures (Cu3P+Ni3P+Cu(s.s)/Cu (s.s)/Cu). When the temperature increases to 750℃ or the holding time prolongs to 300 s, the eutectie structures disappear and the amount of Cu3P increases. The maximum shear strength of the joints is 5.2 MPa, which fracture at the interface of graphite and metallization. The resistance of the joints is no more than 5 mΩ.