Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Two-step aluminum oxide ceramic connecting method based on aluminum oxide powder solder sintering and glass permeation principle
The invention discloses a two-step aluminum oxide ceramic connecting method based on an aluminum oxide powder solder sintering and glass permeation principle, and belongs to the technical field of welding. The method comprises the following steps: firstly, connecting aluminum oxide ceramics by adopting aluminum oxide powder; and then penetrating and filling holes (including open holes and closed holes) in the weld joint by using glass solder so as to obtain a compact weld joint layer. The content of Al2O3 phase in the obtained aluminum oxide/aluminum oxide joint welding seam is higher than 50%, and the difference between the thermal expansion coefficient of the welding seam and the thermal expansion coefficient of base metal is smaller than 2%. The joint has excellent mechanical properties, high temperature resistance and thermal shock resistance.
本发明公开了一种基于氧化铝粉末焊料烧结及玻璃渗透原理的两步连接氧化铝陶瓷的方法，属于焊接技术领域。该方法首先采用氧化铝粉末对氧化铝陶瓷进行连接；然后使用玻璃焊料渗透填充焊缝中的孔洞(包括开孔和闭孔)，以获得致密的焊缝层。本发明获得的氧化铝/氧化铝接头焊缝中的Al2O3相含量高于50％，焊缝与母材的热膨胀系数差异小于2％。接头具有优异的力学性能、耐高温性和热震抗力。
Two-step aluminum oxide ceramic connecting method based on aluminum oxide powder solder sintering and glass permeation principle
The invention discloses a two-step aluminum oxide ceramic connecting method based on an aluminum oxide powder solder sintering and glass permeation principle, and belongs to the technical field of welding. The method comprises the following steps: firstly, connecting aluminum oxide ceramics by adopting aluminum oxide powder; and then penetrating and filling holes (including open holes and closed holes) in the weld joint by using glass solder so as to obtain a compact weld joint layer. The content of Al2O3 phase in the obtained aluminum oxide/aluminum oxide joint welding seam is higher than 50%, and the difference between the thermal expansion coefficient of the welding seam and the thermal expansion coefficient of base metal is smaller than 2%. The joint has excellent mechanical properties, high temperature resistance and thermal shock resistance.
本发明公开了一种基于氧化铝粉末焊料烧结及玻璃渗透原理的两步连接氧化铝陶瓷的方法，属于焊接技术领域。该方法首先采用氧化铝粉末对氧化铝陶瓷进行连接；然后使用玻璃焊料渗透填充焊缝中的孔洞(包括开孔和闭孔)，以获得致密的焊缝层。本发明获得的氧化铝/氧化铝接头焊缝中的Al2O3相含量高于50％，焊缝与母材的热膨胀系数差异小于2％。接头具有优异的力学性能、耐高温性和热震抗力。
Two-step aluminum oxide ceramic connecting method based on aluminum oxide powder solder sintering and glass permeation principle
一种基于氧化铝粉焊料烧结及玻璃渗透原理的两步连接氧化铝陶瓷的方法
ZHU WEIWEI (Autor:in) / KARAKI (Autor:in) / RAN XU (Autor:in) / ZHAO SENMIAO (Autor:in) / ZOU HAOHAO (Autor:in) / ZU GUOQING (Autor:in) / HAN YING (Autor:in)
11.10.2024
Patent
Elektronische Ressource
Chinesisch
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