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Title: Joining alumina ceramics with titanium-containing braze alloys

Abstract

Under conventional methods, the joining of an alumina ceramic body to either another ceramic or to a metal is a complex process that is time consuming and, therefore, costly. In addition, ceramic deformation often occurs as a result of firing at high temperatures. A newly developed braze material that can be directly applied to a bare ceramic surface is now commercially available. This material eliminates the need to metallize and to plate the ceramic surface prior to joining, and also eliminates the need to seal at high temperatures. A small titanium addition (1 to 3 wt %) enables the braze material to wet the ceramic surface directly. In this investigation, the tensile strength of two different compositions of active braze alloys (ABA) was determined. In addition, extensive optical, SEM, BS, EDS, WDS, and scanning Auger microscopy examination of brazed ceramic samples was made to determine reaction mechanisms and fracture modes at the ceramic-alloy braze interface.

Authors:
; ; ; ;
Publication Date:
Research Org.:
Monsanto Research Corp., Miamisburg, OH (USA). Mound
OSTI Identifier:
5049111
Report Number(s):
MLM-3394
ON: DE87002197
DOE Contract Number:  
AC04-76DP00053
Resource Type:
Technical Report
Resource Relation:
Other Information: Paper copy only, copy does not permit microfiche production. Original copy available until stock is exhausted
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; ALUMINIUM OXIDES; BRAZING ALLOYS; BRAZED JOINTS; FRACTURES; TENSILE PROPERTIES; TITANIUM ADDITIONS; ALLOYS; ALUMINIUM COMPOUNDS; CHALCOGENIDES; FAILURES; JOINTS; MECHANICAL PROPERTIES; OXIDES; OXYGEN COMPOUNDS; TITANIUM ALLOYS; WELDED JOINTS; 360201* - Ceramics, Cermets, & Refractories- Preparation & Fabrication; 360101 - Metals & Alloys- Preparation & Fabrication

Citation Formats

Cassidy, R T, Pence, R E, Moddeman, W E, Spangler, E M, and Cramer, J C. Joining alumina ceramics with titanium-containing braze alloys. United States: N. p., 1986. Web.
Cassidy, R T, Pence, R E, Moddeman, W E, Spangler, E M, & Cramer, J C. Joining alumina ceramics with titanium-containing braze alloys. United States.
Cassidy, R T, Pence, R E, Moddeman, W E, Spangler, E M, and Cramer, J C. Wed . "Joining alumina ceramics with titanium-containing braze alloys". United States.
@article{osti_5049111,
title = {Joining alumina ceramics with titanium-containing braze alloys},
author = {Cassidy, R T and Pence, R E and Moddeman, W E and Spangler, E M and Cramer, J C},
abstractNote = {Under conventional methods, the joining of an alumina ceramic body to either another ceramic or to a metal is a complex process that is time consuming and, therefore, costly. In addition, ceramic deformation often occurs as a result of firing at high temperatures. A newly developed braze material that can be directly applied to a bare ceramic surface is now commercially available. This material eliminates the need to metallize and to plate the ceramic surface prior to joining, and also eliminates the need to seal at high temperatures. A small titanium addition (1 to 3 wt %) enables the braze material to wet the ceramic surface directly. In this investigation, the tensile strength of two different compositions of active braze alloys (ABA) was determined. In addition, extensive optical, SEM, BS, EDS, WDS, and scanning Auger microscopy examination of brazed ceramic samples was made to determine reaction mechanisms and fracture modes at the ceramic-alloy braze interface.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1986},
month = {10}
}

Technical Report:
Other availability
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