The relationship of levitation force between single and multiple YBCO bulk superconductors

2002 ◽  
Vol 371 (3) ◽  
pp. 219-223 ◽  
Author(s):  
W.M Yang ◽  
L Zhou ◽  
Y Feng ◽  
P.X Zhang ◽  
C.P Zhang ◽  
...  
Keyword(s):  
Levitation Force ◽  
Ybco Bulk ◽  
Bulk Superconductors ◽  
Relationship Of ◽  
The Relationship

Effect of grain-alignment on the levitation force of melt-processed YBCO bulk superconductors

1999 ◽  
Vol 8 (7) ◽  
pp. 533-538
Author(s):  
Yang Wan-min ◽  
Zhou Lian ◽  
Feng Yong ◽  
Zhang Ping-xiang ◽  
Wu Min-zhi ◽  
...  
Keyword(s):  
Levitation Force ◽  
Ybco Bulk ◽  
Grain Alignment ◽  
Bulk Superconductors

Identification of the effect of grain size on levitation force of well-textured YBCO bulk superconductors

Cryogenics ◽  
2002 ◽  
Vol 42 (10) ◽  
pp. 589-592 ◽  
Author(s):  
W.M Yang ◽  
L Zhou ◽  
Y Feng ◽  
P.X Zhang ◽  
C.P Zhang ◽  
...  
Keyword(s):  
Grain Size ◽  
Levitation Force ◽  
Ybco Bulk ◽  
Bulk Superconductors

Levitation force and trapped magnetic field of multi-grain YBCO bulk superconductors

2008 ◽  
Vol 468 (15-20) ◽  
pp. 1473-1476 ◽  
Author(s):  
J.S. Choi ◽  
S.D. Park ◽  
B.H. Jun ◽  
Y.H. Han ◽  
N.H. Jeong ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Levitation Force ◽  
Ybco Bulk ◽  
Bulk Superconductors ◽  
Trapped Magnetic Field

scholarly journals Magnetic Forces Investigation of Bulk HTS over Permanent Magnetic Guideway under Different Lateral Offset with 3D-Model Numerical Method

2012 ◽  
Vol 2012 ◽  
pp. 1-6 ◽  
Author(s):  
Yiyun Lu ◽  
Qiaohong Dang
Keyword(s):  
3D Model ◽  
Magnetic Levitation ◽  
Levitation Force ◽  
Bulk Sample ◽  
Magnetic Forces ◽  
Calculation Results ◽  
Lateral Offset ◽  
Relationship Of ◽  
The Relationship ◽  
Magnetic Levitation Force

Magnetic forces of a cylinder shape bulk high-temperature superconductor (HTS) over a permanent magnet guideway (PMG) are studied mathematically. One cylindrical bulk HTS with a diameter of 30 mm and 15 mm in height is used. Two types of PMG are employed for external magnetic fields consideration. The relationship of magnetic forces of bulk HTS under different lateral offsets over PMG is studied with 3D-model finite element method (FEM). The calculation results show that the maximum magnetic levitation force of bulk HTS over PMG is tightly related to the applied magnetic field distribution. For the symmetrical PMG, the maximum magnetic levitation force decreases linearly with the increase of lateral offset of the bulk sample. For the Halbach PMG, when lateral offset changes from 0 mm to 25 mm, the maximum magnetic levitation force increases with the increase of lateral offset of the bulk HTS. When the lateral offset exceeds the center of the Halbach by 25 mm, the maximum levitation force decreases rapidly with the increase of the lateral offset of the bulk sample.

The effect of magnet configurations on the levitation force of melt processed YBCO bulk superconductors

2001 ◽  
Vol 354 (1-4) ◽  
pp. 5-12 ◽  
Author(s):  
W.M. Yang ◽  
L. Zhou ◽  
Y. Feng ◽  
P.X. Zhang ◽  
J.R. Wang ◽  
...  
Keyword(s):  
Levitation Force ◽  
Ybco Bulk ◽  
Bulk Superconductors

Influence of ZnO doping on the properties of single domain YBCO bulks fabricated by RE+011 TSIG process

2017 ◽  
Vol 31 (25) ◽  
pp. 1745018
Author(s):  
W. M. Yang ◽  
X. C. Yuan ◽  
Y. X. Guo
Keyword(s):  
Lattice Distortion ◽  
Levitation Force ◽  
Solid Phase ◽  
Single Domain ◽  
Pinning Force ◽  
Ybco Bulk ◽  
Trapped Field ◽  
Bulk Superconductors ◽  
Flux Pinning Force ◽  
Zno Doping

Single domain YBCO bulk superconductors with different additions of ZnO have been successfully fabricated by RE[Formula: see text]011 TSIG process with a new solid phase of [(100-[Formula: see text])(Y2O[Formula: see text]BaCuO2)+[Formula: see text]ZnO] and a new liquid phase of (Y2O3+6CuO+10BaCuO2). The effects of ZnO additions on the growth morphology, microstructure, critical temperature ([Formula: see text]), the levitation force and trapped field of the YBCO bulks have been investigated. It is found that within the range of ZnO additions [Formula: see text]=0–1.0 wt.%, all the samples are of the typical characteristic of single-domain YBCO bulk; the [Formula: see text] of the samples decreases from 92 K to 80 K when the ZnO addition [Formula: see text] increases from [Formula: see text]=0 wt.% to [Formula: see text]=1.0 wt.%; the levitation force and trapped field of the samples firstly increase and then decrease with increase of ZnO additions after going through a maximum, which is closely related with the ZnO addition and the resulting flux pinning force caused by lattice distortion due to the substitution of Zn[Formula: see text] for Cu[Formula: see text] site in the YBCO crystal; the largest levitation force 36.8 N (77 K, 0.5 T) and trapped field 0.416 T (77 K, 0.5 T) of the samples are obtained when [Formula: see text]=0.1 wt.%, respectively. This result is significantly important and helpful for us to improve the properties of YBCO bulk superconductors.

scholarly journals The effect of grain-domain-size on levitation force of melt growth processing YBCO bulk superconductors

2002 ◽  
Vol 32 (3) ◽  
pp. 763-767 ◽  
Author(s):  
W. M. Yang ◽  
L. Zhou ◽  
Y. Feng ◽  
P.X. Zhang ◽  
C.P. Zhang ◽  
...  
Keyword(s):  
Levitation Force ◽  
Domain Size ◽  
Ybco Bulk ◽  
Melt Growth ◽  
Bulk Superconductors
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