| 中间层M o 网对Al2O3/Nb 钎焊接头热震抗力的影响 |
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| 引用本文： | 朱定一,金志浩,王永兰.中间层M o 网对Al2O3/Nb 钎焊接头热震抗力的影响[J].复合材料学报,1999,16(2):100-104. |
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| 作者姓名： | 朱定一 金志浩 王永兰 |
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| 作者单位： | 西安交通大学金属材料强度国家重点实验室, 西安 710049 |
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| 基金项目： | 国防科工委预研项目;; |
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| 摘 要： | 首次研究了在Al2O3/Nb 的钎焊界面之间加入一层金属Mo 网, 可大幅度提高接头的热震抗力, 经用N i51T i49 钎料焊接后, 700℃淬水后的剩余强度达到了不加网的焊后强度, 强度提高了180% 以上, 用Cu52Ni18Ti30 钎料焊接并加Mo 网后, 700℃淬水后的剩余强度也提高了130%以上。接头断裂特征明显不同, 分析认为金属网的加入显著降低了钎焊界面的残余应力。
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| 关 键 词： | 金属网 热震抗力 残余应力 陶瓷 钎焊 |
| 收稿时间： | 1997-09-03 |
| 修稿时间： | 1998-03-06 |
EFFECT OF THE MOLYBDENUM NET INTERLAYER ON THE THERMAL SHOCK BEHAVIOUR OF THE BRAZING INTERFACE OF Al2O3/Nb |
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| Zhu Dingyi,Jin Zhihao,Wang Yonglan.EFFECT OF THE MOLYBDENUM NET INTERLAYER ON THE THERMAL SHOCK BEHAVIOUR OF THE BRAZING INTERFACE OF Al2O3/Nb[J].Acta Materiae Compositae Sinica,1999,16(2):100-104. |
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| Authors: | Zhu Dingyi Jin Zhihao Wang Yonglan |
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| Affiliation: | State Key Laboratory for Mechanical Behavior of Materials Xian Jiaotong University, Xian 710049 |
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| Abstract: | The effect of a molybodnum net interlayer in Al2O3/Nb brazed joint on the thermal shock behaviour of the interface was studied for the first time. The existence of the net in Al2O3/Nb interface was able to increase the thermal shock resistance of the joint considerably. When it was brazed with Ni51Ti49 and Cu52Ni18Ti30 solders separately and quenched into water from 700,the thermal shock resistance of the joint with the net was raised by more than 180% and 130% respectively, compared to those of the joints without a net. The fracture topograph of the joints with the net was very different from those of the joints without a net. It was supposed that the existence of a net interlayer could markedly reduce the residual stress in the brazed interface. |
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| Keywords: | metal net thermal shock resistance residual stress ceramics brazing |
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