钠硼硅酸玻璃与铝的阳极焊工艺及结合机理

Techniques and mechanism of anodic bonding between sodium borosilicate glass and aluminum

研究了钠硼硅酸玻璃与铝的阳极焊工艺 ,分析了工艺参数对焊接过程的影响 ,指出减小或消除由于两者热膨胀系数不匹配而产生的影响是焊接的关键 ,焊合率及焊接电流受焊接温度与电压的影响。同时对其结合机理进行了进一步的探讨 ,发现玻璃与铝在阳极焊过程中形成以硅 ,铝 ,氧 ,钠 ,锌复合物为主的过渡层。

The techniques and the mechanism of anodic bonding between aluminum and sodium borosilicate glass were analyzed. The effect of technical parameters on welding process was studied. It is pointed out that thermal expansion coefficient difference between them plays an important role in the bonding process, and the intimate contact area and the current are influenced by the bonding temperature and voltage . Trough analysing the joining mechanism, it is suggested that the interface is mainly made up of the compounds which contain silicon, aluminum, oxygen, sodium and zinc.