Joining alumina ceramics with titanium-containing braze alloys
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.
- Research Organization:
- Monsanto Research Corp., Miamisburg, OH (USA). Mound
- DOE Contract Number:
- AC04-76DP00053
- OSTI ID:
- 5049111
- Report Number(s):
- MLM-3394; ON: DE87002197
- 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
Similar Records
Elevated temperature creep properties for selected active metal braze alloys
Bonding and fracture of titanium-containing braze alloys to alumina
Related Subjects
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