Numerical analysis of magnetization process of high-Tc superconductor undulator of X-ray FEL using power law conductivity

2019 ◽  
Vol 59 (1) ◽  
pp. 165-171
Author(s):  
Hideki Kawaguchi ◽  
Yi Deri
Keyword(s):  
Numerical Analysis ◽  
Power Law ◽  
Magnetization Process ◽  
High Tc ◽  
X Ray ◽  
High Tc Superconductor

EXPERIMENTAL STUDY OF THE HIGH Tc SUPERCONDUCTOR Y-Ba-Cu-O SYSTEM

1989 ◽  
Vol 03 (08) ◽  
pp. 661-664
Author(s):  
S.M.M.R. NAQVI ◽  
JAWAID ALAM ◽  
FIROZ AHMAD ◽  
MUSHEER HASAN KHAN
Keyword(s):  
Experimental Study ◽  
Superconducting Phase ◽  
X Ray Diffraction ◽  
High Tc ◽  
X Ray ◽  
High Tc Superconductor ◽  
Zero Resistance

Two batches of Y-Ba-Cu-O superconductors have been prepared. The zero resistance temperature is 90 K with Tc onset at 93 K and 95 K, respectively. Susceptibility measurements show superconducting phase at LN2. X-ray diffraction results indicates single phases.

Compositional homogeneity in processing precursor powders to the Ba2YCu3O7−x high Tc superconductor

1992 ◽  
Vol 7 (3) ◽  
pp. 580-584 ◽  
Author(s):  
James F. Kelly ◽  
Joseph J. Ritter
Keyword(s):  
Electron Microscopy ◽  
Particle Morphology ◽  
Ionic Concentration ◽  
Solution Ph ◽  
High Tc ◽  
X Ray ◽  
High Tc Superconductor ◽  
Compositional Homogeneity ◽  
Precursor Powders ◽  
Scanning Electron

We have used scanning electron microscopy (SEM) and energy dispersive x-ray spectroscopy (EDS) to study compositional homogeneity at several stages in the processing of powders to the Ba2YCu3Ox high Tc superconductor. We investigated the effects of solution pH and ionic concentration in the precipitation preparation of mixed hydroxycarbonates of Ba, Y, and Cu as precursor to the Ba2YCu3O7−x high Tc superconductor. Our results show that both powder homogeneity and particle morphology are strongly dependent on these parameters. Additionally, studies of the compacted powders by EDS mapping at successive stages of processing show the development of phase inhomogeneities even in homogeneous starting powders.

Crystal structure of the high-Tc superconductor HoSr2Cu2.7Mo0.3O7.54 by joint time-of-flight neutron/X-ray rietveld refinement

1995 ◽  
Vol 119 (1) ◽  
pp. 115-119 ◽  
Author(s):  
William T.A. Harrison ◽  
Stan Roliard ◽  
John T. Vaughey ◽  
Lumei Liu ◽  
Allan J. Jacobson
Keyword(s):  
Crystal Structure ◽  
Rietveld Refinement ◽  
Time Of Flight ◽  
High Tc ◽  
X Ray ◽  
High Tc Superconductor

Studies of short range order structure in the high-Tc superconductor Y-Ba-Cu-O using X-ray absorption techniques

1989 ◽  
Vol 158 (1-3) ◽  
pp. 465-466 ◽  
Author(s):  
A. Krol ◽  
L.Y. Jang ◽  
S.C. Woronick ◽  
F. Xu ◽  
Y.D. Yao ◽  
...  
Keyword(s):  
Short Range ◽  
Short Range Order ◽  
Range Order ◽  
Order Structure ◽  
High Tc ◽  
X Ray ◽  
High Tc Superconductor ◽  
X Ray Absorption

ChemInform Abstract: X-Ray Emission and X-Ray Self-Absorption in the High-Tc Superconductor YBa2Cu3O6.9 and Other Copper Oxides.

ChemInform ◽  
1989 ◽  
Vol 20 (23) ◽  
Author(s):  
F. BURGAEZY ◽  
H. JAEGER ◽  
K. SCHULZE ◽  
P. LAMPARTER ◽  
S. STEEB
Keyword(s):  
Copper Oxides ◽  
High Tc ◽  
X Ray ◽  
High Tc Superconductor

STUDY ON PHASE DIAGRAM OF BaO-Y2O3-CuO TERNARY SYSTEM

1987 ◽  
Vol 01 (02) ◽  
pp. 363-365 ◽  
Author(s):  
Guangcan Che ◽  
Jingkui Liang ◽  
Wei Chen ◽  
Sishen Xie ◽  
Yude Yu ◽  
...  
Keyword(s):  
Thermal Analysis ◽  
Phase Diagram ◽  
Ternary System ◽  
Room Temperature ◽  
X Ray Diffraction ◽  
High Tc ◽  
X Ray ◽  
High Tc Superconductor

In Ba-R-Cu-O system (R=La, Y) , high Tc superconductor have been discovered (1–3). The room temperature section of the phase diagram in BaO-Y2O3-CuO system has been completed by means of X-ray diffraction, thermal analysis and superconducting measurements.

Dielectric properties of Ln(Mg1/2Ti1/2)O3 as substrates for high-Tc superconductor thin films

1999 ◽  
Vol 14 (6) ◽  
pp. 2484-2487 ◽  
Author(s):  
Seo-Yong Cho ◽  
Chang-Hun Kim ◽  
Dong-Wan Kim ◽  
Kug Sun Hong ◽  
Jong-Hee Kim
Keyword(s):  
Thin Film ◽  
Dielectric Constant ◽  
Room Temperature ◽  
Ybco Thin Film ◽  
X Ray Diffraction ◽  
High Tc ◽  
X Ray ◽  
High Tc Superconductor ◽  
Tan Δ ◽  
Superconductor Thin Films

Ln(Mg1/2Ti1/2)O3 (Ln = Dy, La, Nd, Pr, Sm, Y) compositions have been prepared, and their pertinent properties for use as thin film substrates for YBa2Cu3Ox (YBCO) were measured. X-ray diffraction shows that Ln(Mg1/2Ti1/2)O3 compositions have noncubic symmetry and the GdFeO3-type structure. Dielectric constant measurements revealed values between 22 and 27, which are larger than those of the LnAlO3 family. Quality factor (=1/ tan δ) of the ceramic specimens measured at room temperature was larger than 3000 at 10 GHz. Among the compounds, La(Mg1/2Ti1/2)O3 exhibited the highest dielectric constant and the lowest dielectric loss. Chemical reaction was observed between Ln(Mg1/2Ti1/2)O3 (Ln = Dy, Sm, Y) and YBCO after annealing a 1 : 1 mixture at 950 °C. Considering dielectric and physical properties, La(Mg1/2Ti1/2)O3 and Sm(Mg1/2Ti1/2)O3 were determined to be suitable substrates for YBCO thin film used in microwave applications.

X-ray absorption study of oxygen in the high-Tc superconductor Bi2Sr2CaCu2O8 near the interfaces to Cu, Ag and Au

1996 ◽  
Vol 265 (1-2) ◽  
pp. 113-120 ◽  
Author(s):  
M. Qvarford ◽  
S. Söderholm ◽  
O. Tjernberg ◽  
G. Chiaia ◽  
H. Nylén ◽  
...  
Keyword(s):  
Absorption Study ◽  
High Tc ◽  
X Ray ◽  
High Tc Superconductor ◽  
X Ray Absorption
Sign in / Sign up

Export Citation Format

Share Document