Greatly enhanced flux pinning properties of fluorine-free metal–organic decomposition YBCO films by co-addition of halogens (Cl, Br) and metals (Zr, Sn, Hf)

2018 ◽  
Vol 31 (4) ◽  
pp. 044004 ◽  
Author(s):  
Takanori Motoki ◽  
Shuhei Ikeda ◽  
Shin-ichi Nakamura ◽  
Genki Honda ◽  
Tatsuoki Nagaishi ◽  
...  
Keyword(s):  
Flux Pinning ◽  
Ybco Films ◽  
Metal Organic ◽  
Co Addition ◽  
Pinning Properties ◽  
Free Metal ◽  
Organic Decomposition

Pyrolysis behaviors dominated by the reaction–diffusion mechanism in the fluorine-free metal–organic decomposition process

2020 ◽  
Vol 8 (48) ◽  
pp. 17417-17428
Author(s):  
Jiangtao Shi ◽  
Yue Zhao ◽  
Yue Wu ◽  
Jingyuan Chu ◽  
Xiao Tang ◽  
...  
Keyword(s):  
Diffusion Model ◽  
Diffusion Mechanism ◽  
Reaction Diffusion ◽  
Decomposition Process ◽  
One Dimensional ◽  
Reaction Diffusion Model ◽  
Metal Organic ◽  
Free Metal ◽  
Organic Decomposition

In this work, pyrolysis behaviors dominated by the reaction–diffusion mechanism were investigated. And one-dimensional reaction–diffusion model is proposed.

STRONG FLUX PINNING OF NANO-SIZED YSZ PARTICLES IN YBCO FILMS PREPARED BY MOD METHOD

2011 ◽  
Vol 25 (31) ◽  
pp. 2371-2376
Author(s):  
S. YE ◽  
H. L. SUO ◽  
M. LIU ◽  
X. TANG ◽  
Z. P. WU ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Applied Field ◽  
Flux Pinning ◽  
Ybco Film ◽  
Precursor Solution ◽  
Organic Salt ◽  
Superconducting Properties ◽  
Ybco Films ◽  
Metal Organic ◽  
Better Than

The YBCO films with doped YSZ nanoparticles have been prepared successfully by metal organic doepositon method using trifluoroacetates (TFA-MOD) through dissolving Zr organic salt into the YBCO precursor solution. The doped films have well in-plane and out-plane textures detected by both XRD Φ-scan and ω-scan. The YSZ nanoparticles with the size of about 5 ~ 15 nm were observed on the surface of the YBCO films using both FE-SEM and TEM. By comparing the superconducting properties, it was found that the doped YBCO films had lower Tc than that of undoped YBCO films. However, as increasing the applied magnetic field, Jc of the doped YBCO films were much better than that of undoped one. The Jc was as higher as 2.5 times than that of undoped YBCO film at 77 K and 1 T applied field.

scholarly journals Flux pinning properties of YBCO films with nano-particles by TFA-MOD method

2012 ◽  
Vol 27 ◽  
pp. 240-243 ◽  
Author(s):  
Y. Masuda ◽  
R. Teranishi ◽  
M. Matsuyama ◽  
K. Yamada ◽  
T. Kiss ◽  
...  
Keyword(s):  
Flux Pinning ◽  
Nano Particles ◽  
Ybco Films ◽  
Pinning Properties

Dramatic effects of chlorine addition on expanding synthesis conditions for fluorine-free metal–organic decomposition YBa2Cu3Oyfilms

2017 ◽  
Vol 10 (2) ◽  
pp. 023102 ◽  
Author(s):  
Takanori Motoki ◽  
Shuhei Ikeda ◽  
Genki Honda ◽  
Tatsuoki Nagaishi ◽  
Shin-ichi Nakamura ◽  
...  
Keyword(s):  
Synthesis Conditions ◽  
Metal Organic ◽  
Free Metal ◽  
Organic Decomposition
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