Western Superconducting Technologies Co.

Fengcheng, China

Western Superconducting Technologies Co.

Fengcheng, China

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Wang Q.X.,Xi'an University of Science and Technology | Wang Q.X.,Western Superconducting Technologies Co. | Liang S.H.,Xi'an University of Science and Technology
Vacuum | Year: 2011

An W-10 wt.%Ti alloy target was prepared by the W-Ti ball-milled powders, and W-Ti thin lms were deposited by dc magnetron sputtering on Si substrates. Then Cu/W-Ti/Si structures were prepared after Cu films were deposited on the W-Ti/Si structures. The results show that W-Ti alloy has a single phase structure with fine grain size. The structures of W-Ti thin films evolved from an amorphous film to a dual phase structure with bcc W and hcp Ti, followed by W-Ti solid solution with increasing sputtering powers. W-Ti thin lms can effectively block against Cu diffusion and maintain good adhesion strength with Cu lms at 600 °C. The failure mechanism of the crystal W-Ti films is related to the grain boundary which provides fast diffusion paths for Cu and Si atoms, while the amorphous W-Ti diffusion barrier layer is directly related to the thermal stress and interface reaction. © 2011 Elsevier Ltd. All rights reserved.


Cao W.,Xi'an University of Science and Technology | Liang S.,Xi'an University of Science and Technology | Xue Y.,Western Superconducting Technologies Co. | Wang X.,Xi'an University of Science and Technology
Advanced Materials Research | Year: 2011

In order to gain a deep insight into the mechanism of Ni-doped Mo activated sintering process, the diffusion behavior of Mo-Ni interface was studied utilizing a Mo-Ni diffusion couple. The phase structure and composition on the diffusion layer were characterized and analyzed by means of scanning electron microscope and transmission electron microscope, the self diffusion coefficient and interdiffusion coefficient were calculated. The results show that a diffusion layer is formed between Mo and Ni after sintering at 1223k for 1h, which is comprised of a δ-NiMo intermetallic compound and a limit solid solution containing small amounts of nickel. The self diffusion coefficient and interdiffusion coefficient are 2.068×10 -18 cm/s and 4.5×10 -12 cm 2/s, respectively. It is suggested that the diffusion rate of Mo in 8-NiMo intermetallic compound and a limit solid solution containing small amounts of nickel is 10 6 times bigger than that of self diffusion, and the intermetallic compound layer provides a short diffusion path for Mo activated sintering. © (2011) Trans Tech Publications, Switzerland.


This report studies Alpha Magnetic Spectrometer in Global market, especially in North America, Europe, China, Japan, Korea and Taiwan, focuses on top manufacturers in global market, with production, price, revenue and market share for each manufacturer, covering  Bruker Corporation  Deutsche Nanoschicht GmbH  Grid Logic  Japan Superconductor Technology, Inc  Nexans SA  SH Copper Products Co. Ltd.  SuNam Co., Ltd.  SuperPower Inc.  Western Superconducting Technologies Co., Ltd  American Superconductor Corporation Market Segment by Regions, this report splits Global into several key Regions, with production, consumption, revenue, market share and growth rate of Alpha Magnetic Spectrometer in these regions, from 2011 to 2021 (forecast), like  North America  Europe  China  Japan  Korea  Taiwan Split by product type, with production, revenue, price, market share and growth rate of each type, can be divided into  Type I  Type II  Type III Split by application, this report focuses on consumption, market share and growth rate of Alpha Magnetic Spectrometer in each application, can be divided into  Application 1  Application 2  Application 3 1 Alpha Magnetic Spectrometer Market Overview  1.1 Product Overview and Scope of Alpha Magnetic Spectrometer  1.2 Alpha Magnetic Spectrometer Segment by Type  1.2.1 Global Production Market Share of Alpha Magnetic Spectrometer by Type in 2015  1.2.2 Type I  1.2.3 Type II  1.2.4 Type III  1.3 Alpha Magnetic Spectrometer Segment by Application  1.3.1 Alpha Magnetic Spectrometer Consumption Market Share by Application in 2015  1.3.2 Application 1  1.3.3 Application 2  1.3.4 Application 3  1.4 Alpha Magnetic Spectrometer Market by Region  1.4.1 North America Status and Prospect (2011-2021)  1.4.2 Europe Status and Prospect (2011-2021)  1.4.3 China Status and Prospect (2011-2021)  1.4.4 Japan Status and Prospect (2011-2021)  1.4.5 Korea Status and Prospect (2011-2021)  1.4.6 Taiwan Status and Prospect (2011-2021)  1.5 Global Market Size (Value) of Alpha Magnetic Spectrometer (2011-2021) 2 Global Alpha Magnetic Spectrometer Market Competition by Manufacturers  2.1 Global Alpha Magnetic Spectrometer Production and Share by Manufacturers (2015 and 2016)  2.2 Global Alpha Magnetic Spectrometer Revenue and Share by Manufacturers (2015 and 2016)  2.3 Global Alpha Magnetic Spectrometer Average Price by Manufacturers (2015 and 2016)  2.4 Manufacturers Alpha Magnetic Spectrometer Manufacturing Base Distribution, Sales Area and Product Type  2.5 Alpha Magnetic Spectrometer Market Competitive Situation and Trends  2.5.1 Alpha Magnetic Spectrometer Market Concentration Rate  2.5.2 Alpha Magnetic Spectrometer Market Share of Top 3 and Top 5 Manufacturers  2.5.3 Mergers & Acquisitions, Expansion 3 Global Alpha Magnetic Spectrometer Production, Revenue (Value) by Region (2011-2016)  3.1 Global Alpha Magnetic Spectrometer Production by Region (2011-2016)  3.2 Global Alpha Magnetic Spectrometer Production Market Share by Region (2011-2016)  3.3 Global Alpha Magnetic Spectrometer Revenue (Value) and Market Share by Region (2011-2016)  3.4 Global Alpha Magnetic Spectrometer Production, Revenue, Price and Gross Margin (2011-2016)  3.5 North America Alpha Magnetic Spectrometer Production, Revenue, Price and Gross Margin (2011-2016)  3.6 Europe Alpha Magnetic Spectrometer Production, Revenue, Price and Gross Margin (2011-2016)  3.7 China Alpha Magnetic Spectrometer Production, Revenue, Price and Gross Margin (2011-2016)  3.8 Japan Alpha Magnetic Spectrometer Production, Revenue, Price and Gross Margin (2011-2016)  3.9 Korea Alpha Magnetic Spectrometer Production, Revenue, Price and Gross Margin (2011-2016)  3.10 Taiwan Alpha Magnetic Spectrometer Production, Revenue, Price and Gross Margin (2011-2016) 4 Global Alpha Magnetic Spectrometer Supply (Production), Consumption, Export, Import by Regions (2011-2016)  4.1 Global Alpha Magnetic Spectrometer Consumption by Regions (2011-2016)  4.2 North America Alpha Magnetic Spectrometer Production, Consumption, Export, Import by Regions (2011-2016)  4.3 Europe Alpha Magnetic Spectrometer Production, Consumption, Export, Import by Regions (2011-2016)  4.4 China Alpha Magnetic Spectrometer Production, Consumption, Export, Import by Regions (2011-2016)  4.5 Japan Alpha Magnetic Spectrometer Production, Consumption, Export, Import by Regions (2011-2016)  4.6 Korea Alpha Magnetic Spectrometer Production, Consumption, Export, Import by Regions (2011-2016)  4.7 Taiwan Alpha Magnetic Spectrometer Production, Consumption, Export, Import by Regions (2011-2016) 7 Global Alpha Magnetic Spectrometer Manufacturers Profiles/Analysis  7.1 Bruker Corporation  7.1.1 Company Basic Information, Manufacturing Base and Its Competitors  7.1.2 Alpha Magnetic Spectrometer Product Type, Application and Specification  7.1.2.1 Type I  7.1.2.2 Type II  7.1.3 Bruker Corporation Alpha Magnetic Spectrometer Production, Revenue, Price and Gross Margin (2015 and 2016)  7.1.4 Main Business/Business Overview  7.2 Deutsche Nanoschicht GmbH  7.2.1 Company Basic Information, Manufacturing Base and Its Competitors  7.2.2 Alpha Magnetic Spectrometer Product Type, Application and Specification  7.2.2.1 Type I  7.2.2.2 Type II  7.2.3 Deutsche Nanoschicht GmbH Alpha Magnetic Spectrometer Production, Revenue, Price and Gross Margin (2015 and 2016)  7.2.4 Main Business/Business Overview  7.3 Grid Logic  7.3.1 Company Basic Information, Manufacturing Base and Its Competitors  7.3.2 Alpha Magnetic Spectrometer Product Type, Application and Specification  7.3.2.1 Type I  7.3.2.2 Type II  7.3.3 Grid Logic Alpha Magnetic Spectrometer Production, Revenue, Price and Gross Margin (2015 and 2016)  7.3.4 Main Business/Business Overview  7.4 Japan Superconductor Technology, Inc  7.4.1 Company Basic Information, Manufacturing Base and Its Competitors  7.4.2 Alpha Magnetic Spectrometer Product Type, Application and Specification  7.4.2.1 Type I  7.4.2.2 Type II


Han F.,Northwestern Polytechnical University | Tang B.,Northwestern Polytechnical University | Kou H.,Northwestern Polytechnical University | Cheng L.,Northwestern Polytechnical University | And 3 more authors.
Journal of Materials Science | Year: 2014

This study presents a 2D cellular automata simulation of static recrystallization (SRX) arising from the subgrain growth in single-phase material following cold deformation by coupling with a crystal plasticity finite element (CPFE) method. The spatial distribution of the stored deformation energy was obtained by CPFE simulation, based on which the initial deformed microstructure consisting of nonuniformly distributed subgrains was predicted. To simulate grain/subgrain growth during annealing, a curvature-driven mechanism was used, in which the grain/subgrain boundary energy and mobility were misorientation-dependent. On the SRX nucleation, a physically based model using critical subgrain size as criterion was adopted, which could provide better insight into the recrystallization nucleation mechanism involving grain boundary bulging. Simulations under different pre-deformation conditions were performed, and the influence of strain rate and strain on the SRX microstructure evolution and the transformation kinetics were investigated. Results show that deformation at higher strain rate can accelerate the SRX kinetics, and the SRX behavior depends more on the deformation state of individual grain than the nominal strain due to the relatively small computational domain. © 2014 Springer Science+Business Media New York.


Chen Y.,Northwestern Polytechnical University | Li J.,Northwestern Polytechnical University | Tang B.,Northwestern Polytechnical University | Kou H.,Northwestern Polytechnical University | And 3 more authors.
Materials Letters | Year: 2013

Grain boundary character distribution and texture evolution of Ti-45Nb wires were investigated during the cold-drawn process. The results revealed that the fiber microstructure formed along drawing direction after cold-drawn process. The <110> fiber texture formed and the intensity enhanced by increasing the strain from 90% to 98% during the cold-drawn process. A large amount of high angle grain boundaries (HAGB) occurred at a large strain state of 90%, which was resulted from the rotation of the initial β grains. By increasing the strain to 98%, the fraction of low angle grain boundaries (LAGB) increased remarkably by the formation of the subdivided grains. © 2013 Elsevier B.V. All rights reserved.


Wang X.,Western Superconducting Technologies Co. | Wang X.,Northwestern Polytechnical University
Jinshu Rechuli/Heat Treatment of Metals | Year: 2013

Effects of annealing and deforming temperatures on the transformation and deformation of Ti-50.1Ni shape memory alloy have been investigated by means of thermal gravity, X-ray diffraction and tensile test. Oxidation become serious above 600°C in the process of heating for Ti-50.1Ni, therefore, annealing temperature should be below 600°C. Since austenitic transformation start temperatures (As) is above room temperature, the phase at the room temperature is martensitic phase, the Ti-50.1Ni alloy shows shape memory effect (SME). The SME property can be obtained at room temperature for the Ti-50.1Ni alloy annealed at 350-600°C.


Ma X.,Northwestern Polytechnical University | Zeng W.,Northwestern Polytechnical University | Wang K.,Northwestern Polytechnical University | Wang K.,Western Superconducting Technologies Co. | And 3 more authors.
Materials Science and Engineering A | Year: 2012

In this study, five existing instability criteria (Prasad's, Murty's, Sematin's, Gegel's and Malas's criterion) were employed to delineate the unstable flow regions for Ti17 alloy during hot deformation. Experimental stress-strain data obtained from isothermal hot compression tests in the temperature range of 780-860°C and strain rate range of 0.001-10s -1 were utilized to develop the instability maps. These domains were validated through detailed microstructure observation. The material exhibited stable flow at lower strain rates while adiabatic shear band and flow localization occurred at higher strain rates (≥1s -1). It was observed that the maps at strain of 0.9 developed by Prasad's and Murty's criteria have a good ability for predicting unstable flow at high strain rates and entire temperatures. However, the Semiatin's criterion under-predicts the instability regions in the test temperatures and strain rates. On the contrary, the Gegel's and Malas's criteria over-predict the instability domains, especially for the low strain rate region. © 2012 Elsevier B.V.


Zhang X.,Northwestern Polytechnical University | Kou H.,Northwestern Polytechnical University | Li J.,Northwestern Polytechnical University | Zhang F.,Western Superconducting Technologies Co. | Zhou L.,Northwestern Polytechnical University
Journal of Alloys and Compounds | Year: 2013

Evolution of the secondary α phase morphologies during isothermal heat treatment of a near β titanium alloy Ti-7Mo-3Al-3Nb-3Cr (Ti-7333) has been studied by using SEM and TEM. The results indicated that the morphologies of α phase widely varied by changing the isothermal temperature and time. The needle- like secondary α precipitate morphology formed after solution treatment above β transus followed with aging treatment. When the aging temperature reduced, the length and width of α phase reduced while the volume fraction increased. This increasing in the volume fraction of α phase resulted in the strengthening of the micro-hardness of the alloy. In addition, the results showed that there was almost no precipitation after 1 min isothermal holding time at 650 °C. After 2 min, α phase presented a dot shape precipitation with a nonuniform distribution. Increasing the holding time to 5 min, the α precipitation demonstrated a needle-like shape. At last, the coarse α precipitation formed after aging 3 h. The volume fraction of α increased from 4.6% to 44% while the aging time increasing from 2 min to 3 h. The effect of the alloy elements on governing the microstructure is discussed. © 2013 Elsevier B.V. All rights reserved.


Li C.S.,Northwest Institute for Nonferrous Metal Research | Yang F.,Northwest Institute for Nonferrous Metal Research | Yan G.,Western Superconducting Technologies Co. | Xiong X.M.,Northwest Institute for Nonferrous Metal Research | And 5 more authors.
Journal of Alloys and Compounds | Year: 2014

Superhard materials AlMgB14-xTiB2 disks were synthesized by a two-step heat-treatment method. In the first step, AlMg 6B14-xTiB2 disks were fabricated by uniformly mixed Mg, B, Al powders and different contents Ti powder, and then AlMg 6B14-xTiB2 disks were heated at 850 C for 2 h in closed argon atmosphere. In the second step, AlMg6B 14-xTiB2 disks were sintered at 1050 C for half an hour in vacuum, then target AlMgB14-xTiB2 disks were obtained. The phase, microstructure and superconductivity were characterized by means of X-ray diffraction (XRD), scanning electron microscope (SEM) and superconducting quantum interference device (SQUID). The nano-scale TiB2 particles as the second phase induced by Ti doping are uniformly distributed in the sample matrix. The results reveal that the stepwise synthesis method can produce practical AlMgB14-TiB2 materials. © 2013 Elsevier B.V. All rights reserved.


Trademark
Western Superconducting; Technologies Co. | Date: 2013-01-11

Alloys of common metal; alloys of common metal, namely, niobium-titanium alloy, niobium-stannum alloy; pipework of metal; building materials of metal; railway material of metal; laths of metal; wire of common metal alloys except fuse wire; tanks of metal; signboards of metal.

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