High energy electron beams for ceramic joining
- Sandia National Labs., Albuquerque, NM (United States)
- Titan Corp., Albuquerque, NM (United States)
Joining of structural ceramics is possible using high melting point metals such as Mo and Pt that are heated with a high energy electron beam, with the potential for high temperature joining. A 10 MeV electron beam can penetrate through 1 cm of ceramic, offering the possibility of buried interface joining. Because of transient heating and the lower heat capacity of the metal relative to the ceramic, a pulsed high power beam has the potential for melting the metal without decomposing or melting the ceramic. We have demonstrated the feasibility of the process with a series of 10 MeV, 1 kW electron beam experiments. Shear strengths up to 28 MPa have been measured. This strength is comparable to that reported in the literature for bonding silicon nitride to molybdenum with copper-silver-titanium braze, but weaker than that reported for Si{sub 3}N{sub 4}-Si{sub 3}N{sub 4} with gold-nickel braze. The bonding mechanism appears to be a thin silicide layer.
- Research Organization:
- Sandia National Labs., Albuquerque, NM (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- AC04-94AL85000
- OSTI ID:
- 10112102
- Report Number(s):
- SAND-94-2145C; CONF-950226-4; ON: DE95006316; BR: GB0103012
- Resource Relation:
- Conference: SPIE `95: SPIE conference on optics, electro-optics, and laser application in science, engineering and medicine,San Jose, CA (United States),5-14 Feb 1995; Other Information: PBD: [1994]
- Country of Publication:
- United States
- Language:
- English
Similar Records
Electron beam joining of structural ceramics
Process development for electron beam joining of ceramic and glass components