CSIR Central

Thermal cycling behavior of alumina-graphite brazed joints in electron tube applications

IR@CGCRI: CSIR-Central Glass and Ceramic Research Institute, Kolkata

View Archive Info
 
 
Field Value
 
Title Thermal cycling behavior of alumina-graphite brazed joints in electron tube applications
 
Creator Dandapat, Nandadulal
Ghosh, Sumana
Pal, Kalyan Sundar
Datta, Someswar
Guha, Bichitra Kumar
 
Subject Engineering Materials
 
Description Alumina was joined with graphite by active metal brazing technique at 895, 900, 905, and 910 degrees C for 10 min in vacuum of 0.67 mPa using Ti-Cu-Ag (68.8Ag-26.7Cu-4.5Ti; mass fraction, %) as filler material. The brazed samples were thermal cycled between 30 and 600 degrees C and characterized. X-ray diffraction results show strong reaction between titanium and carbon as well as titanium and alumina. Scanning electron microscopy and helium leak tests show that the initial and thermal cycled brazed samples are devoid of cracks or any other defects and hermeticity in nature. Brazing strength of the joints is found to be satisfactory.
 
Publisher Elsevier
 
Date 2014-06
 
Type Article
PeerReviewed
 
Format application/pdf
 
Identifier http://cgcri.csircentral.net/2596/1/nandadulal.pdf
Dandapat, Nandadulal and Ghosh, Sumana and Pal, Kalyan Sundar and Datta, Someswar and Guha, Bichitra Kumar (2014) Thermal cycling behavior of alumina-graphite brazed joints in electron tube applications. Transactions of Nonferrous Metals Society of China, 24 (6). pp. 1666-1673. ISSN 1003-6326
 
Relation http://cgcri.csircentral.net/2596/