Cube texture evolution of Ni5W alloy substrates and La–Zr–O buffer layer of YBCO-coated conductors

Cube textured Ni substrate were fabricated for YBCO coated conductors from the initial specimens prepared by powder metallurgy (P/M) and casting and the effects of annealing temperature and reduction ratio on texture formation and microstructural evolutio were evaluated. The initial specimens were rolled by 98.6% and 99.2% reduction ratio and then annealed in the temperature range of 600°C to 1200°C. The microstructure and texture were evaluated by optical microscopy and X-ray pole-figure analysis. We observed that microstructure of the initial specimen varied with preparation methods.Texture analysis indicated that a strong cube texture formed for substrate made by P/M, and the degree of texture did not significantly vary with annealing temperature of 600°C~1100°C. On the other hand, the texture of substrate made by casting was more dependent on the annealing temperature and twin texture ({221}<221>) and several minor texture components started to form at 1000°C. In addition, the texture of substrate made by P/M was significantly dependent on the reduction ratio.

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Evolution of Cube Texture in Cu-45at.%Ni Alloy Substrates for YBCO Coated Conductors

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.778.105 ◽

2015 ◽

Vol 778 ◽

pp. 105-109

Author(s):

Hui Tian ◽

Yi Wang ◽

Pan Wang ◽

Ya Ru Liang ◽

Lin Ma ◽

...

Keyword(s):

Grain Growth ◽

Texture Evolution ◽

Cube Texture ◽

Rolling Texture ◽

Coated Conductors ◽

Recrystallization Process ◽

Ni Alloy ◽

Back Scattering ◽

Cold Rolled ◽

Ybco Coated Conductors

The cube texture evolution during annealing of the heavy cold-rolled Cu-45at.%Ni alloy tapes were investigated by XRD and electron back scattering diffraction techniques. The results indicated that the fraction of Copper-type rolling texture was slightly strengthened during recovery, and then strongly reduced during recrystallization. The cube texture was formed by consuming the rolling texture components during recrystallization process, and the S, Copper and Brass orientations were consumed together via cube grain growth. A strong cube-textured Cu-45at.%Ni alloy substrate with the cube texture fraction of 98.6 % (< 10°) was obtained after annealing at 1000 oC for 1 h.

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Cube Texture Formation of Cu-33at.%Ni Alloy Substrates and CeO2 Buffer Layer for YBCO Coated Conductors

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.887-888.345 ◽

2014 ◽

Vol 887-888 ◽

pp. 345-348 ◽

Cited By ~ 1

Author(s):

Hui Tian ◽

Hong Li Suo ◽

Ya Ru Liang ◽

Yue Zhao ◽

Lin Ma ◽

...

Keyword(s):

Buffer Layer ◽

Full Width Half Maximum ◽

Cube Texture ◽

Coated Conductors ◽

Texture Formation ◽

Solution Deposition ◽

X Ray ◽

Ni Alloy ◽

Electron Back Scattered Diffraction ◽

Ybco Coated Conductors

Cube texture formation of Cu-33 at.%Ni alloy substartes and CeO2buffer layer prepared by chemical solution deposition on the textured substrate were investigated by electron back scattered diffraction (EBSD) and XRD technics systematically. The results shown that a strong cube textured Cu-33at.%Ni alloy substrate with the cube texture fraction of 99.8 % (< 10°) was obtained after annealing at 1000°C for 1 h. The full width half maximum (FWHM) values for the X-ray (111) phi-scan and (002) omega-scan in this substrate were 7.31° and 5.51°, respectively. Furthermore, the cube texture fraction of epitaxially grown CeO2buffer layer was 95 % (< 10°), and the FWHM values of phi-scan and omega-scan being 6.98° and 5.92°, respectively.

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In Situ EBSD Study of Stable Cube Texture in an Advanced Composite Substrate Used in YBCO-Coated Conductors

Microscopy and Microanalysis ◽

10.1017/s1431927620001415 ◽

2020 ◽

Vol 26 (3) ◽

pp. 365-372

Author(s):

Yaotang Ji ◽

Hongli Suo ◽

ZiLi Zhang ◽

Lin Ma ◽

Jiazhi Li ◽

...

Keyword(s):

Yield Strength ◽

Cube Texture ◽

Strain Curve ◽

Coated Conductors ◽

Buffer Layers ◽

High Yield ◽

Alloy Composite ◽

Composite Substrates ◽

Ybco Coated Conductors

AbstractAdvanced Ni8W/Ni12W/Ni8W alloy composite substrates used in YBCO-coated conductors with a strong cube texture and high yield strength have been fabricated, and a CeO2 buffer layer film was successfully deposited on the composite substrates. Through in situ tensile testing coupled with electron backscattered diffraction (EBSD) analysis, the stability of the cube texture of Ni8W/Ni12W/Ni8W alloy composite substrates has been investigated. The stress–strain curve shows that the yield strength (at 0.2% strain) of the composite substrates exceeds 250 Mpa. The orientation of grains and boundaries on the surface of the substrates was almost unchanged, while the strain exceeds 0.2%, which indicated that the composite substrates are adequate for depositing buffer layers and YBCO layers by the reel-to-reel process.

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A novel process for CeO2single buffer layer on biaxially textured metal substrates in YBCO coated conductors

Superconductor Science and Technology ◽

10.1088/0953-2048/19/10/014 ◽

2006 ◽

Vol 19 (10) ◽

pp. 1068-1072 ◽

Cited By ~ 27

Author(s):

Jie Xiong ◽

Yin Chen ◽

Yang Qiu ◽

Bowan Tao ◽

Wenfeng Qin ◽

...

Keyword(s):

Buffer Layer ◽

Coated Conductors ◽

Metal Substrates ◽

Ybco Coated Conductors

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A single oxide buffer layer on a cube-textured Ni substrate for the development of YBCO coated conductors by photo-assisted MOCVD

Superconductor Science and Technology ◽

10.1088/0953-2048/19/8/014 ◽

2006 ◽

Vol 19 (8) ◽

pp. 772-776 ◽

Cited By ~ 10

Author(s):

Jianming Zeng ◽

Alex Ignatiev ◽

Yuxiang Zhou ◽

Kamel Salama

Keyword(s):

Buffer Layer ◽

Coated Conductors ◽

Ni Substrate ◽

Ybco Coated Conductors

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A comparison of buffer layer architectures on continuously processed YBCO coated conductors based on the IBAD YSZ process

IEEE Transactions on Applied Superconductivity ◽

10.1109/77.919783 ◽

2001 ◽

Vol 11 (1) ◽

pp. 3359-3364 ◽

Cited By ~ 34

Author(s):

T.G. Holesinger ◽

S.R. Foltyn ◽

P.N. Arendt ◽

Quanxi Jia ◽

P.C. Dowden ◽

...

Keyword(s):

Buffer Layer ◽

Coated Conductors ◽

Ybco Coated Conductors

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

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.1105.195 ◽

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.

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