HTSC grain boundary weak links employing high-quality ICM sputtered YBCO films

1994 ◽  
Vol 16 (12) ◽  
pp. 1967-1972 ◽  
Author(s):  
C. Camerlingo ◽  
H. Huang ◽  
B. Ruggiero ◽  
M. Russo ◽  
E. Sarnelli ◽  
...  
Keyword(s):  
Grain Boundary ◽  
Weak Links ◽  
High Quality ◽  
Ybco Films

Precisely determined temperature window size for the growth of high quality c-axis oriented YBCO films by photo-assisted MOCVD

2008 ◽  
Vol 468 (21) ◽  
pp. 2213-2218 ◽  
Author(s):  
Guoxing Li ◽  
Xiujun Fang ◽  
Lei Zhao ◽  
Shanwen Li ◽  
Zhongmin Gao ◽  
...  
Keyword(s):  
Window Size ◽  
High Quality ◽  
Ybco Films ◽  
Temperature Window

In-Plane Misoriented Grain Boundary Structures and Superconducting Properties of YBCO Films on MgO Substrate

1993 ◽  
pp. 907-910 ◽  
Author(s):  
Hajime Suzuki ◽  
Tomonori Yamamoto ◽  
Masahiro Ohshima ◽  
Masayuki Itoh ◽  
Yoshihiko Hirotsu ◽  
...  
Keyword(s):  
Grain Boundary ◽  
Superconducting Properties ◽  
Ybco Films ◽  
Mgo Substrate

Structural investigation of YBCO films and bicrystal grain boundary junctions

1994 ◽  
Vol 16 (12) ◽  
pp. 2025-2030 ◽  
Author(s):  
A. Del Vecchio ◽  
C. Camerlingo ◽  
F. De Riccardis ◽  
H. Huang ◽  
B. Ruggiero ◽  
...  
Keyword(s):  
Grain Boundary ◽  
Structural Investigation ◽  
Ybco Films

Influence of grain boundary weak links on the nonequilibrium response of YBaCuO thin films to short laser pulses

1994 ◽  
Vol 7 (4) ◽  
pp. 751-755 ◽  
Author(s):  
Gregory N. Gol'tsman ◽  
Ivan G. Goghidze ◽  
Pavel B. Kouminov ◽  
Boris S. Karasik ◽  
Alexei D. Semenov ◽  
...  
Keyword(s):  
Thin Films ◽  
Grain Boundary ◽  
Laser Pulses ◽  
Weak Links ◽  
Short Laser Pulses

Texture Formation and Improvement of Grain Boundary Weak‐Links in Tape Shaped Wire Prepared by the Unidirectional Solidification Technique.

1989 ◽  
Vol 169 ◽  
Author(s):  
Michiya Okada ◽  
Toyotaka Yuasa ◽  
Tosimi Matsumoto ◽  
Katuzo Aihara ◽  
Masahiro Seido ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Grain Boundary ◽  
Grain Boundaries ◽  
Fine Particles ◽  
Unidirectional Solidification ◽  
Weak Links ◽  
Second Phase ◽  
Texture Formation

AbstractAu‐Sheathed Y‐Ba‐Cu‐O(YBCO) and Tl‐Ba/Sr‐Ca‐Cu‐O(TBSCCO) tapes were fabricated by the drawing‐rolling and subsequent unidirectional solidification. A typical microstructure of melt‐textured polycrystallite including fine particles of second phase(e.q. Y‐211) was observed. The Tl‐2223 tapes prepared at an optimized condition yielded Jc=15,300 A/cm2 at 77K in the absence of magnetic field, and l,100A/cm2 in a magnetic field of IT. The enhancement of Jc in a magnetic field is suggested to be due to the improvement of weak‐links in grain boundaries.

Microstructure and growth of joins in melt-textured YBa2Cu3O7−δ

2001 ◽  
Vol 16 (8) ◽  
pp. 2298-2305 ◽  
Author(s):  
A. D. Bradley ◽  
W. Lo ◽  
M. Mironova ◽  
N. H. Babu ◽  
D. A. Cardwell ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Transmission Electron Microscopy ◽  
Liquid Phase ◽  
Grain Boundary ◽  
Electron Probe ◽  
High Quality ◽  
Strongly Coupled ◽  
External Agent ◽  
Transmission Electron

Joining of melt-textured YBa2Cu3O7-δ (Y123) grains has been achieved without use of an external agent. The technique uses barium-cuprate liquid phase released from platelet boundaries to mediate the growth of Y123 at the interface between two grains. The epitaxial nature and high quality of the growth was determined by optical and transmission electron microscopy. The composition of Ba–Cu–O phases found in some parts of the joins was determined by electron probe microanalysis. A clean low-angle join was found to consist of a grain boundary with dislocation networks and facets. Transport critical current measurements on this type of join revealed strongly coupled behavior. The technique shows promise for the joining of melt-textured material for power engineering applications.

Well-defined grain boundary weak-links in silver-sheathed ( tape conductors

1996 ◽  
Vol 9 (12) ◽  
pp. 1077-1080 ◽  
Author(s):  
J Everett ◽  
M Dhallé ◽  
M D Johnston ◽  
A D Caplin ◽  
J C Moore ◽  
...  
Keyword(s):  
Grain Boundary ◽  
Weak Links
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