| 用铝合金中间层连接Si_3N_4和低碳钢 |
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| 引用本文： | 陈学定,夏天东,路文江,罗永春. 用铝合金中间层连接Si_3N_4和低碳钢[J]. 兰州理工大学学报, 1991, 0(4) |
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| 作者姓名： | 陈学定 夏天东 路文江 罗永春 |
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| 作者单位： | 甘肃工业大学焊接工程系(陈学定,夏天东,路文江),甘肃工业大学焊接工程系(罗永春) |
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| 摘 要： | 利用Thermorestor-W焊接热模拟试验机,采用适当的焊接参数和工艺,能够用铝合金中间层固相扩散连接Si_3N_4和低碳钢。在连接温度下,铝合金Si_3N_4进入孔洞中形成机械连接,而铝合金与Si_3N_4连接的主要机理是铝与Si_3N_4发生固相反应生成AlN。当温度大于530℃时,铝合金/Si_3N_4界面Al,Si扩散层厚度基本上不随温度升高而变化。Si_3N_4/铝合金/低碳钢接头的剪切强度取决于铝合金/钢界面强度,且随扩散连接温度上升而增加。
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| 关 键 词： | 陶瓷 连接 低碳钢 Si_3N_4 固相扩散焊 扩散 铝合金中间层 |
Bonding of Silicon Nitride to Low Carbon Steel With an Aluminum Alloy Inter Layer |
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| Chen Xueding,Xia Tiandong,Lu Wenjiang,Luo Yongchun. Bonding of Silicon Nitride to Low Carbon Steel With an Aluminum Alloy Inter Layer[J]. Journal of Lanzhou University of Technology, 1991, 0(4) |
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| Authors: | Chen Xueding Xia Tiandong Lu Wenjiang Luo Yongchun |
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| Affiliation: | Dept. of Welding Engineering |
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| Abstract: | Silicon nitride and low carbon steel can be well bonded with an aluminum alloy inter layer using proper bonding processes and parameters in Thermorestor-W weld thermal simulator. At the bonding temperature, the aluminum alloy enters the porosities in silicon nitride to make a mechanical bonding, the main mechanism of bonding being the forming of aluminum nitride. When the bonding temperature exceeds 530"C ,the thickness of Al,Si diffusion layer changes a little as the temperture increses. The shear strength of the bond depends upon that of the aluminum/steel interface and increases as the temperature rises. |
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| Keywords: | ceramics bonding low carbon steel silicon nitride solid phase diffusion welding diffusion aluminum alloy inter layer |
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