| 电流辅助加热条件下Ti3AlC2/Zr连接界面研究 |
| Interlayer-Mediated Interface Bonding of Zr and Ti3AlC2 Through Electric-Current-Aided Heating |
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| DOI：10.16253/j.cnki.37-1226/tq.2016.12.001 |
| 中文关键词: Ti3AlC2 扩散连接 电场辅助 TiC中间层 |
| 英文关键词:Ti3AlC2 Diffusion bonding Electric-current-aided TiC interlayer |
| 基金项目:国家自然科学基金 (91426304；91426304)；中科院跨学科创新团队；中国科学院战略重点研究项目 (XDA03010305)；浙江省自然科学基金 (LY15E020007)。 |
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| 中文摘要: |
| 采用电场辅助加热技术实现了Ti3AlC2/Zr的低温连接，并对其界面结构进行了研究。在TAC/Zr连接对中，Al的扩散激活能只有6.9 kJ/mol，远低于传统的热压方法连接Ti2AlC-Zr时Al的扩散激活能。TiC做过渡层时可以有效地抑制Al从Ti3AlC2一侧向Zr合金中扩散，并且可以进一步降低连接温度。研究发现，通过调控TiC涂层的计量比以调控连接界面的性能是完全有可能的。 |
| 英文摘要: |
| Electric-current-aided heating was employed to realize the Ti3AlC2/Zr joining at low temperature and the interface structure was studied. The diffusion activation energy of Al element in the prepared TAC/Zr joining couple is only 6.9 kJ/mol, being much lower than that in Ti2AlC/Zr joining couple by traditional pressure sintering, 38 kJ/mol. When TiC coating is used as an interlayer, it was found that the TiC interlayer can efficiently block the diffusion of Al from Ti3AlC2 side into Zr alloy without the deterioration of joining behavior. The results also show that the joining temperature for TiC@TAC/Zr couple was further reduced. While, the TiC interlayer have revealed the promising role to control the interface reaction through the regulation of ratio of Ti and C in the coating. |
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