| About this Abstract |
| Meeting |
MS&T23: Materials Science & Technology
|
| Symposium
|
Manufacturing and Processing of Advanced Ceramic Materials
|
| Presentation Title |
In Situ Video Monitoring of Zirconium Active Braze Alloy for Joining Al<Sub>2</Sub>O<Sub>3</Sub> to Kovar |
| Author(s) |
Anthony Mcmaster, Anne Grillet, Pankaj Kumar, Patrick Price |
| On-Site Speaker (Planned) |
Anthony Mcmaster |
| Abstract Scope |
Brazing is one of the few available methods for producing hermetic, high strength joints between ceramic materials and metals. Active brazing allows the joining to occur in a single step through a metallization reaction at the ceramic-braze alloy interface. Here, in situ video monitoring was implemented to determine reaction stages, time and length scales, and causes of failure for an AgCuZr braze alloy joining Al<Sub>2</Sub>O<Sub>3</Sub> to Kovar. The collected video data was correlated to postmortem analysis of SEM and EDS(energy-dispersive X-ray spectroscopy) to quantify elemental transport. In situ monitoring provides new insight into the reactions that occur in active braze joining, especially at the interface between the braze alloy and ceramic substrate.
------------------------------------------------------------------------------------
SNL is managed and operated by NTESS under DOE NNSA contract DE-NA0003525 |