Laser welding of HTSC ceramics

✍ Scribed by G. N. Mikhailova; B. P. Mikhailov; A. V. Troitskii

• Publisher: John Wiley and Sons
• Year: 2004
• Tongue: English
• Weight: 144 KB
• Volume: 1
• Category: Article
• ISSN: 1612-2011
• DOI: 10.1002/lapl.200410113

✦ Synopsis

The technology of laser welding of high temperature
superconducting ceramics Bi(2223) was developed and investigated.
CW CO~2~ laser (λ = 10.6 μm) with maximum power
of 100 W was used as a source of laser radiation. Then thermal
annealing was applied for Bi(2223) phase repairing.
Microstructure, chemical and phase composition of material in the
welded field were investigated. Properties of HTSC ceramics were
fully repaired (T
~c~ ≈ 110 K) at optimal
conditions of laser welding and thermal annealing. Proposed method
opens wide capabilities for formation the reliable mechanical and
electrical contacts between different constructive elements of
HTSC ceramics devices having large dimensions or complex shape.