Compound characterization of laser brazed SiC-steel joints using tungsten reinforced SnAgTi-alloys

I. Südmeyer; M. Rohde; T. Fürst

doi:10.1117/12.840537

23 February 2010 Compound characterization of laser brazed SiC-steel joints using tungsten reinforced SnAgTi-alloys

I. Südmeyer, M. Rohde, T. Fürst

Proceedings Volume 7585, Laser-based Micro- and Nanopackaging and Assembly IV; 758503 (2010) https://doi.org/10.1117/12.840537
Event: SPIE LASE, 2010, San Francisco, California, United States

Abstract

With the help of a CO₂-laser (λ = 10.64 μm) Silicon carbide (Trade name: Ekasic-F, Comp: ESK Ceramics) has been brazed to commercial steel (C45E, Matnr. 1.1191) using SnAgTi-filler alloys. The braze pellets were dry pressed based on commercially available powders and polished to a thickness of 300 μm. The SnAgTi-fractions were varied with the objective of improving the compound strength. Furthermore, tungsten reinforced SnAgTi-fillers were examined with regard to the shear strength of the ceramic/steel joints. Polished microsections of SnAgTi-pellets were investigated before brazing in order to evaluate the particle distribution and to detect potential porosities using optical microscopy. The brazing temperature and the influence of the reinforcing particles on the active braze filler were determined by measurements with a differential scanning calorimeter (DSC). After brazing. the ceramic-steel joints were characterized by scanning electron micrographs and EDX-analysis. Finally the mechanical strength of the braze-joints was determined by shear tests.

Citation Download Citation

I. Südmeyer, M. Rohde, and T. Fürst "Compound characterization of laser brazed SiC-steel joints using tungsten reinforced SnAgTi-alloys", Proc. SPIE 7585, Laser-based Micro- and Nanopackaging and Assembly IV, 758503 (23 February 2010); https://doi.org/10.1117/12.840537

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available