Preparation and Characterization of Cube-Textured Ni-5 at.% W Substrates for Coated Conductors

2013 ◽  
Vol 537 ◽  
pp. 269-273
Author(s):  
Xing Pin Chen ◽  
Jing Peng Zhang ◽  
Xue Chen ◽  
Yong Bin Ji
Keyword(s):  
Grain Size ◽  
Cube Texture ◽  
Xrd Analysis ◽  
Coated Conductors ◽  
Coated Conductor ◽  
High Temperature Annealing ◽  
Full Width ◽  
Half Maximum ◽  
Out Of Plane

The goal of present study was to manufacture and characterize the Ni-5 at.% W alloy substrates for coated conductor applications with a strong cube texture. Cube-textured Ni-5 at.% W alloy substrates were fabricated by heavy cold rolling (98%) and a high temperature annealing (1200°C). From the EBSD and XRD analysis of the fully recrystallized tapes, the cube texture component in the tape was found to reach a proportion as high as 99.5% within a tolerance angle of less than 9o, while the FWHM (full width at half maximum) values of the out-of-plane and in-plane textures are about 5.8o and 6.9o, respectively. Moreover, the grain size distribution is homogeneous, and there is a large amount of low angle grain boundaries (95.6%). This process is very suitable for preparation of substrates for coated conductors.

Characterization of soft X-ray FEL pulse duration with two-color photoelectron spectroscopy

2020 ◽  
Vol 27 (5) ◽  
pp. 1362-1365
Author(s):  
Shigeki Owada ◽  
Mizuho Fushitani ◽  
Akitaka Matsuda ◽  
Hikaru Fujise ◽  
Yuuma Sasaki ◽  
...  
Keyword(s):  
Pulse Duration ◽  
Photoelectron Spectroscopy ◽  
Free Electron Laser ◽  
Cross Correlation ◽  
Near Infrared ◽  
Arrival Time ◽  
Full Width ◽  
Half Maximum ◽  
X Ray

The pulse duration of soft X-ray free-electron laser (FEL) pulses of SACLA BL1 (0.2–0.3 nC per bunch, 0.5–0.8 MeV) were characterized by photoelectron sideband measurements. The intensity of the He 1 s−1 photoelectron sidebands generated by a near-infrared femtosecond laser was measured as a function of the time delay between the two pulses using an arrival time monitor. From the width of the cross-correlation trace thus derived, the FEL pulse duration was evaluated to be 28 ± 5 fs full width at half-maximum in the photon energy range between 40 eV and 120 eV.

Cube Texture Formation in Ni-8at.%W Alloy Substrates Effected by the Initial Grain Size of Ingot

2015 ◽  
Vol 1105 ◽  
pp. 195-199
Author(s):  
Yi Chen Meng ◽  
Hong Li Suo ◽  
Hui Tian ◽  
Lin Ma ◽  
Yi Wang ◽  
...  
Keyword(s):  
Grain Size ◽  
Critical Current Density ◽  
Cold Rolling ◽  
Current Density ◽  
Cube Texture ◽  
Coated Conductors ◽  
Texture Formation ◽  
High Critical Current Density ◽  
High Quality ◽  
Ybco Coated Conductors

The high critical current density of YBCO-coated conductors prepared by rolling assisted biaxially textured substrate technic is mostly based on the high quality cube-textured substrates. In this paper, the effect of initial grain size of ingot on the microstructure and texture evolutions during cold rolling has been investigated in high alloyed Ni8W ingots, which can affect the cube texture formation in Ni8W alloy substrates subsequently. Finally, high quality cube texture had been obtained in Ni8W alloy substrate with fine initial grain size prepared by advanced SPS technology.

Kyropoulos Growth and Characterization of Monoclinic α-Bi2B8O15 Single Crystal with Noncentrosymmetric Structure

CrystEngComm ◽  
2021 ◽  
Author(s):  
Mengdi Fan ◽  
guangda wu ◽  
Xinle Wang ◽  
Fapeng Yu ◽  
Chun Wang ◽  
...  
Keyword(s):  
High Resolution ◽  
Single Crystal ◽  
Diffraction Analysis ◽  
Full Width ◽  
Half Maximum ◽  
X Ray Diffraction ◽  
X Ray ◽  
Borate Crystal ◽  
Kyropoulos Method

Monoclinic bismuth-based borate crystal α-Bi2B8O15 was grown by the Kyropoulos method. High resolution X-ray diffraction analysis showed that the full width at half-maximum of the Y plate was about 0.04°...

X-RAY EVALUATION OF DEFORMATION BEHAVIOR OF SPUTTERED Cu THIN FILMS UNDER TENSILE LOADING

2012 ◽  
Vol 06 ◽  
pp. 497-502
Author(s):  
YOSHIAKI AKINIWA
Keyword(s):  
Thin Films ◽  
Plastic Deformation ◽  
Grain Size ◽  
Deformation Behavior ◽  
Tensile Loading ◽  
Full Width ◽  
Half Maximum ◽  
Ray Method ◽  
X Ray ◽  
Target Power

Tensile tests were carried out for sputtered copper thin films. Thin films were fabricated by RF magnetron sputtering. The target power of the sputtering equipment was set from 10 to 150 W to control the grain size. The grain size increased with increasing target power. The effect of grain size on the deformation behavior under tensile loading was investigated by X-ray method. The changes in the internal stress and the full width at half maximum were measured under tensile loading. The 0.2% proof stress decreased with grain size. For the full width at half maximum, the value was almost constant in the elastic region. When the plastic deformation occurred, the value increased rapidly with applied strain. For the specimen with fine grains, the value returned to the initial value in spite of after large plastic deformation. After tensile loading, many intergranular cracks could be observed on the specimen surface.

Synthesis and Characterization of In Situ AlN Reinforced Magnesium Matrix Composites

2012 ◽  
Vol 710 ◽  
pp. 377-382
Author(s):  
Sreeja Kumari Sukumaran Suseelammaa ◽  
Uma Thanu Subramonia Pillai ◽  
Sujayakumar Prasanth ◽  
Bellampettu Chandrasekhar Pai
Keyword(s):  
Grain Size ◽  
Xrd Analysis ◽  
Synthesis And Characterization ◽  
Matrix Composites ◽  
Nitrogen Gas ◽  
Magnesium Matrix ◽  
Magnesium Matrix Composites ◽  
Gas Bubbling

In situ Mg-AlN composite has been synthesized by nitrogen gas bubbling method. The morphology of the particles is found to be hexagonal by SEM. The size of the AlN particles is found to be in the range from nano, submicron to a few microns. XRD analysis of the samples confirms the formation of AlN in the melt. Further, the grain size of the magnesium matrix has been reduced by the presence of AlN particles. Hardness of the composite is significantly increased in the particle rich area due to the presence of hard AlN particles.

Preparation and Characterization of Different Metal Modified BaTiO3 Powders

2010 ◽  
Vol 105-106 ◽  
pp. 342-344 ◽  
Author(s):  
J.L. Li ◽  
S.E. Hao ◽  
C.Y. Wang ◽  
F.X. Kong ◽  
W. Wang
Keyword(s):  
Grain Size ◽  
Significant Influence ◽  
Room Temperature ◽  
Xrd Analysis ◽  
Room Temperature Resistivity ◽  
Peak Width ◽  
Small Grains ◽  
Temperature Resistivity ◽  
Sem Investigation

BaTiO3 powders modified with Sm, La, Cu, Al, Zn were prepared by solid doping and gaseous penetration method and their components, structure, superficies and electric properties were characterized. The results show that the resistivity of the modified powders is decreased after both solid doping and gaseous penetration, and it is more obviously after gaseous penetration. Among all the metals being discussed, Sm has the most significant influence on decreasing the resistivity of modified powders. The room temperature resistivity of Sm-penetrated BaTiO3 powders is the lowest, which decreases from 8.3×1010Ω•m (pure BaTiO3 powders) to 1.65×105Ω•m. SEM investigation illustrates that the powders are in uniform grain size. No apparent pores and small grains are found. XRD analysis indicates that the doping process only leads to the changes of the peak width and intensity without new phases appearing, but characteristic peaks of Sm2TiO5, SmTiO3, and Ba10.37Sm17.08Ti36O108 can be detected after gaseous penetrated, which leads to the decrease of the resistivity of modified BaTiO3 powders.

PREPARATION AND CHARACTERIZATION OF BIAXIALLY TEXTURED METALLIC SUBSTRATES FOR HTS COATED CONDUCTORS

2000 ◽  
Vol 14 (25n27) ◽  
pp. 3139-3144 ◽  
Author(s):  
A. TUISSI ◽  
R. MASINI ◽  
E. VILLA ◽  
J. E. EVETTS
Keyword(s):  
Ybco Film ◽  
Low Cost ◽  
Cube Texture ◽  
Primary Recrystallization ◽  
Coated Conductors ◽  
Arc Furnace ◽  
High Critical Current Density ◽  
Metallic Substrates ◽  
Cold Rolled

CuNi, NiCr, NiV alloys and pure Ni have been processed to obtain metallic substrates for high critical current density YBCO film depositions. High purity alloys were prepared using plasma arc furnace and the material was cold rolled to low thickness tapes. For all the tapes the (100)[001] cube alignment was induced by a primary recrystallization heat treatment after heavy cold rolling (RABITS). Besides the cube texture a good substrate should be smooth, thin, strong, non magnetic, resistant to oxidation, cold workable and low cost. In this work mechanical, magnetic and oxidation resistance properties of the prepared textured substrates were measured and compared.

Local epitaxy of YBa2Cu3Ox on polycrystalline Ni measured by x-ray microdiffraction

2007 ◽  
Vol 22 (3) ◽  
pp. 664-674 ◽  
Author(s):  
E.D. Specht ◽  
A. Goyal ◽  
W. Liu
Keyword(s):  
Grain Size ◽  
Diffraction Pattern ◽  
Hough Transform ◽  
Rolling Direction ◽  
Full Width ◽  
Half Maximum ◽  
Entire Area ◽  
X Ray ◽  
Analysis Technique ◽  
Single Diffraction

Polychromatic synchrotron x-ray microdiffraction is used to determine the epitaxy of YBa2Cu3Ox (YBCO) films grown on polycrystalline Y.15Zr.85O1.925/CeO2/Y2O3/Ni95W5(Ni) rolling-assisted, biaxially textured substrates (RABiTS). A novel analysis technique is introduced in which the orientation of mosaic films is measured by using a Hough transform to recognize arcs in Laue microdiffraction patterns that correspond to low-index zone axes. While the overall epitaxy is cube-on-cube, grain-by-grain analysis reveals a systematic misorientation of YBCO with respect to Ni: the YBCO [001] rotates toward the direction of the surface normal. The crystal mosaic (for rotation about the rolling direction) measured by a single diffraction pattern sampling a 0.5-μm2 surface area is 0.7° full width at half-maximum for YBCO grown on Ni grains with a low tilt; for more highly tilted grains, the YBCO patterns can no longer be measured, presumably due to the large mosaic. The YBCO mosaic over the entire area of a Ni grain is ∼2.5° and varies with grain size; the mosaic is smaller for larger grains.

scholarly journals Characterization of gold ore from Babakan Loa Sub-District and leaching study in cyanide solution

2021 ◽  
Vol 882 (1) ◽  
pp. 012027
Author(s):  
L O Arham ◽  
F R Mufakhir ◽  
I A Putri ◽  
Wahab ◽  
H Z Hakim ◽  
...  
Keyword(s):  
Grain Size ◽  
Clay Content ◽  
Xrd Analysis ◽  
Cyanide Solution ◽  
Gold Extraction ◽  
Gold Ore ◽  
Leaching Process ◽  
Wet Chemical ◽  
Ore Characterization

Abstract Research on the characterization of gold ore from Babakan Loa sub-district and studies of leaching in cyanide solution has been carried out. This research was conducted to determine the characteristics of gold ore from Babakan Loa and the leaching behavior in cyanide solution. The preparations carried out were crushing and grinding to obtain several size fractions. The ore characterization was carried out through XRD, XRF, SEM-EDX, and wet chemical analysis. XRD analysis results show that the main mineral phases are quartz, hematite, goethite, kaolinite, montmorillonite, and berlinite. The main constituents of the ore were Si (60.96%), Fe (10.71%), K (5.47%), and Al (19.53%). The Au content was 7.8 ppm, and the results of SEM-EDX analysis show that the gold grain size is smaller than 10µm. The leaching process showed that the highest percent gold extraction data of 92.7% was obtained in experiments with 1000 ppm sodium cyanide concentration, 10% solids percent, and 104-149µm grain size. Increasing the percentage of solids and the reduction in grain size led to a decrease in the percentage of gold extraction. The clay content was suspected to be the cause of the ineffectiveness of the leaching process in this study.

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