발간논문

Home > KJMM 논문 > 발간논문

Vol.30, No.6, 664 ~ 672, 1992
Title
이우천Woo Chun Lee, 강춘식Choon Sik Kang
Abstract
Joining of 304 stainless steel to Si3N4 ceramic using Cu-34.8%Ag-6.2%Ti brazing alloy was made in vacuum furnace. Effects of Al and Sn addition in Cu-Ag-Ti alloy, brazing temperature and brazing time on interfacial reactions and bonding strength of Si3N4-304 joints were investigated. Bonding strength was determined by fracture shear loading and high shear strength value of more than 202 MPa were obtained for joints brazed with Cu-Ag-Ti-Al alloy at 1163 K for 1.8ks. The strong bonding is attritutable to the formation of M1.5Ti(M; Fe, Cr, Fe/Cr=6.4) and Ti5Si4 by redox reaction between Si3N4 and Ti at Si3N4 ceramic interface. Thickness of interfacial reaction layer was decreased and bonding strength was increased as brazing temperature and brazing time were increased. Types of fracture observed at the strength test of Si3N4/304 joints was classified and schematic diagram of fracture mode with joint strength was proposed.
Key Words
| PDF
대한금속∙재료학회 │ (06633) 서울시 서초구 서초대로 56길 38 대한금속∙재료학회 회관 (서초1동 1666-12번지)
Tel : 070-4266-1646 │ FAX : 02-557-1080 │ E-mail : metal@kim.or.kr
Copyright ⓒ 2013 사단법인 대한금속∙재료학회 All rights reserved.