发明授权
- 专利标题: Bonded ceramic-metal article
- 专利标题(中): 粘结陶瓷金属制品
-
申请号: US324844申请日: 1989-03-17
-
公开(公告)号: US5055361A公开(公告)日: 1991-10-08
- 发明人: Edmund M. Dunn , Kang, Shinhoo , George C. Wei
- 申请人: Edmund M. Dunn , Kang, Shinhoo , George C. Wei
- 申请人地址: MA Waltham
- 专利权人: GTE Laboratories Incorporated
- 当前专利权人: GTE Laboratories Incorporated
- 当前专利权人地址: MA Waltham
- 主分类号: B23K1/19
- IPC分类号: B23K1/19 ; B23K35/00 ; C04B37/02
摘要:
A new and improved bonded ceramic-metal article and the method of making the article is described. The ceramic-metal article comprises a ceramic article, such as a lanthana-strengthened yttria article, bonded to a metal article, such as niobium, by a layer of a brazing material to form a bonded ceramic-metal article. The method of bonding the ceramic article to the metal article comprises placing the brazing alloy, such as a brazing alloy consisting essentially of 63% by weight silver, 35.25% by weight copper, and 1.75% by weight titanium, between the lanthana-strengthened yttria article and the niobium article and heating the layered structure in vacuum at about 50 degrees centigrade above the liquidus temperature of the brazing alloy for a period of about 5 minutes. Another method of bonding the ceramic article comprises coating a surface of the lanthana-strengthened yttria article with a group IVB metal, such as titanium, hafnium, and zirconium then placing a different brazing alloy, such as a brazing alloy consisting essentially of 72% by weight silver and 28% by weight copper or a brazing alloy consisting essentially of 82% by weight gold and 18% by weight nickel, between the coated lanthana-strengthened yttria article and the niobium article and heating the layered structure in vacuum at about 50 degrees centigrade above the liquidus temperature of the brazing alloy for a period of about 5 minutes.