Microstructure characteristics of vacuum glazing brazing joints using laser sealing technique

被引：6

作者：

Liu, Sixing ^{[1
]}

Yang, Zheng ^{[1
]}

Zhang, Jianfeng ^{[1
]}

Zhang, Shanwen ^{[1
]}

Miao, Hong ^{[1
]}

Zhang, Yanjun ^{[1
]}

Zhang, Qi ^{[1
]}

机构：

[1] Yangzhou Univ, Coll Mech Engn, 196 Huayang West Rd, Yangzhou 225009, Jiangsu, Peoples R China

来源：

OPTICS AND LASER TECHNOLOGY | 2018年 / 101卷

基金：

中国国家自然科学基金;

关键词：

Laser brazing; Wetting; Vacuum glazing; Microstructure; Interface characteristics; GLASS; FABRICATION; PROSPECTS;

D O I：

10.1016/j.optlastec.2017.11.016

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Two pieces of plate glass were brazed into a composite of glazing with a vacuum chamber using PbO-TiO2-SiO2-RxOy powder filler alloys to develop a new type of vacuum glazing. The brazing process was carried out by laser technology. The interface characteristics of laser brazed joints formed between plate glass and solder were investigated using optical microscope, scanning electron microscopy (SEM). energy dispersive spectroscopy (EDS) and X-ray diffraction (XRD) techniques. The results show that the inter diffusion of Pb/Ti/Si/O elements from the sealing solder toward the glass and O/Al/Si elements from the glass toward the solder, resulting in a reaction layer in the brazed joints. The microstructure phases of PbTiO3, AlSiO, SiO2 and PbO in the glass/solder interface were confirmed by XRD analysis. The joining of the sealing solder to the glass was realized by the reaction products like fibrous structures on interface, where the wetting layer can help improve the bonding performance and strength between the sealing solder and the plate glass during the laser brazing process. (C) 2017 Elsevier Ltd. All rights reserved.

引用

页码：189 / 194

页数：6

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