Paper Title:
Insulated Rail Joints for Signalling Applications
  Abstract

Insulated rail joint assemblies provide electrical insulation between two sections of rail for signalling purposes. In this work, rail steel was successfully bonded to PSZ ceramic using an active brazing technique. In order to increase the wettability of the PSZ ceramics, titanium coating was deposited on the ceramic surface using a filtered arc deposition system. A filler metal called BVAg-18 (60%Ag-30%Cu-10%Sn) was used and the joining was performed at a temperature of 750 °C. Bonding between partially stabilised zirconia and rail steel with BVAg-18 filler metal was not achieved using a standard brazing method. Bonding did occur with the BVAg-18 filler metal using the advanced brazing technique of active metal brazing, with best results obtained using a brazing temperature of 750oC and a dwell time of 10 minutes. The microstructure of the coating and joint interface were characterised by XRD, SEM and EDS.

  Info
Periodical
Materials Science Forum (Volumes 539-543)
Main Theme
Edited by
T. Chandra, K. Tsuzaki, M. Militzer , C. Ravindran
Pages
4069-4074
DOI
10.4028/www.scientific.net/MSF.539-543.4069
Citation
S.W. Huang, S. Burgess, L. Németh Wehrmann, D. Nolan, T. Chandra, "Insulated Rail Joints for Signalling Applications", Materials Science Forum, Vols. 539-543, pp. 4069-4074, 2007
Online since
March 2007
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: M. Bengisu, W.G. Fahrenholtz
655
Authors: Gui Wu Liu, Guan Jun Qiao, Hong Jie Wang, Jian Feng Yang, Tian Jian Lu
109
Authors: Zhi Bo Yang, Jiu Hua Xu, Ai Ju Liu
Abstract:Brazing diamond grits onto steel substrate using a Ni-based filler alloy was carried out via laser beam in an argon atmosphere. The...
3879
Authors: Zhi Bo Yang, Ai Ju Liu, Jiu Hua Xu
Abstract:Brazing diamond wheel was carried out via laser in an argon atmosphere. The interfacial microstructures among brazed diamond, the filler...
218
Authors: Jia Ke Li, Xin Liu, Jian Er Zhou
Chapter 1: Novel Processing and Manufacturing
Abstract:C/C composite and TC4 alloy were successfully brazed using 70Ag28Cu2Ti (wt. %) as filler metal at brazing temperature 820 º°C~920 °C for...
415