Research status of the manufacturing technology and application properties of Bi-2223/Ag tapes at Innost

Han, Yi; Han, Zhidong; Zhang, J.S.; Liu, T.; Liu, L.; Li, M.Y.; Fang, Jian; Liu, Q.; Zheng, Yixin

doi:10.1016/j.physc.2004.01.114

Cited by 17 publications

(6 citation statements)

References 11 publications

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“…To reduce the resonator resistance, Bi-2223 tape (Innova Superconductor Technology Co., Ltd., Beijing, China) was employed to fabricate the RF saddle resonators. The wires with multi-filamentary structure show a critical temperature of 110 K and an engineering critical current density greater than 9000 A/cm 2 at 77 K. The thickness and width of the raw Bi-2223 tape are 0.23 mm and 4.1 mm, respectively, with a tin alloy sheath of 10 µm thick to provide mechanical support for the HTS Bi-2223 composition [24] . High Q capacitors were soldered with the HTS tape to obtain the desirable resonant frequency.…”

Section: Methodsmentioning

confidence: 99%

Whole Body Screening Using High-Temperature Superconducting MR Volume Resonators: Mice Studies

2012

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High temperature superconducting (HTS) surface resonators have been used as a low loss RF receiver resonator for improving magnetic resonance imaging image quality. However, the application of HTS surface resonators is significantly limited by their filling factor. To maximize the filling factor, it is desirable to have the RF resonator wrapped around the sample so that more nuclear magnetic dipoles can contribute to the signal. In this study, a whole new Bi2Sr2Ca2Cu2O3 (Bi-2223) superconducting saddle resonator (width of 5 cm and length of 8 cm) was designed for the magnetic resonance image of a mouse's whole body in Bruker 3 T MRI system. The experiment was conducted with a professionally-made copper saddle resonator and a Bi-2223 saddle resonator to show the difference. Signal-to-noise ratio (SNR) with the HTS saddle resonator at 77 K was 2.1 and 2 folds higher than that of the copper saddle resonator at 300 K for a phantom and an in-vivo mice whole body imaging. Testing results were in accordance with predicted ones, and the difference between the predicted SNR gains and measured SNR gains were 2.4%∼2.7%. In summary, with this HTS saddle system, a mouse's whole body can be imaged in one scan and could reach a high SNR due to a 2 folds SNR gain over the professionally-made prototype of copper saddle resonator at 300 K. The use of HTS saddle resonator not only improves SNR but also enables a mouse's whole body screen in one scan.

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Section: Methodsmentioning

confidence: 99%

Whole Body Screening Using High-Temperature Superconducting MR Volume Resonators: Mice Studies

2012

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“…In 2003, the production capacity was up to 300 km [64]. During the past years, R&D efforts have been continuing to improve the application properties of the HTS tapes, such as reducing ac losses and thermal conductivity and increasing insulating properties.…”

Section: A Progress Of 1g Hts Tapesmentioning

confidence: 99%

Enabling High-Temperature Superconducting Technologies Toward Practical Applications

Jin

Xin

Wang

et al. 2014

IEEE Trans. Appl. Supercond.

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This work covers the high-temperature superconducting (HTS) technologies based on the highlights in recent achievements in the applied HTS field in China. Its comprehensive coverage includes practical HTS material manufacturing and characterization, large-scale applications, and electronic applications. The applied HTS technologies have been well enabled to build applicable devices, and their characteristics have been well verified in the HTS devices developed to be industrialized for practical applications. The highlighted HTS devices and their performance details reveal the trend and the necessary improvement required to reach the goal of industrial applications of HTS technologies. Index Terms-High-temperature (T c ) superconductor (HTS), HTS cable, HTS electronic device, HTS fault-current limiter, HTS large-scale application, HTS magnet, HTS measurement technique, HTS motor, HTS MRI, HTS strong current device, HTS transformer, HTS 2G wire. J. X. Jin is with the

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“…Partially supported by the national applied superconductivity programme, a production line for the manufacture Bi-2223 tape, with a capacity of 200 km year −1 , has been set up by a Chinese company, InnoST [6]. Long tapes with I c values over 100 A at 77 K, self-field, have been produced with rather high yield.…”

Section: The National Programme Of Applied Superconductivity In Chinamentioning

confidence: 99%

Power application of superconductivity technology in China

Han

2006

Supercond. Sci. Technol.

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As a result of the fast rise in power consumption, electrical power generation in China during the past 20 years has increased at an average rate of higher than 8% per year. It is estimated that the power generation capacity in 2020 will be more than 1100 GW. Nevertheless, China is currently experiencing a shortage in the electricity supply, and there are concerns about insufficient availability of mineral resources in the future. The fast expanding power industry has room therefore for applying new technologies, and high temperature superconductivity is one such promising energy saving and environment friendly new technology. Our analysis suggests that the price of high temperature superconductivity equipment will not be an obstacle for large scale applications. Recently, there has been increased support for R&D for high temperature superconductivity applications in China. Several projects, including production of long lengths of Bi-2223 tapes and high temperature superconducting power cables, have been successfully implemented.

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Research status of the manufacturing technology and application properties of Bi-2223/Ag tapes at Innost

Cited by 17 publications

References 11 publications

Whole Body Screening Using High-Temperature Superconducting MR Volume Resonators: Mice Studies

Whole Body Screening Using High-Temperature Superconducting MR Volume Resonators: Mice Studies

Enabling High-Temperature Superconducting Technologies Toward Practical Applications

Power application of superconductivity technology in China

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