Progress in Superconductivity and Cryogenics (한국초전도ㆍ저온공학회논문지)

The Korean Society of Superconductivity and Cryogenics (한국초전도저온학회)
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Development of a PLD heater for continuous deposition and growth of superconducting layer

  • Jeongtae Kim (Cryogenic Apparatus Research Center, Korea Electrotechnology Research Institute) ;
  • Insung Park (Cryogenic Apparatus Research Center, Korea Electrotechnology Research Institute) ;
  • Gwantae Kim (Cryogenic Apparatus Research Center, Korea Electrotechnology Research Institute) ;
  • Taekyu Kim (Dept. of Nanomechatronics Engineering, Pusan National University) ;
  • Hongsoo Ha (Cryogenic Apparatus Research Center, Korea Electrotechnology Research Institute)
  • Received : 2023.06.12
  • Accepted : 2023.06.29
  • Published : 2023.06.30
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Abstract

Superconducting layers deposited on the metal substrate using the pulsed laser deposition process (PLD) play a crucial role in exploring new applications of superconducting wires and enhancing the performance of superconducting devices. In order to improve the superconducting property and increase the throughput of superconducting wire fabricated by pulsed laser deposition, high temperature heating device is needed that provides high temperature stability and strong durability in high oxygen partial pressure environments while minimizing performance degradation caused by surface contamination. In this study, new heating device have been developed for PLD process that deposit and growth the superconducting material continuously on substrate using reel-to-reel transportation apparatus. New heating device is designed and fabricated using iron-chromium-aluminum wire and alumina tube as a heating element and sheath materials, respectively. Heating temperature of the heater was reached over 850 ℃ under 700 mTorr of oxygen partial pressure and is kept for 5 hours. The experimental results confirm the effectiveness of the developed heating device system in maintaining a stable and consistent temperature in PLD. These research findings make significant contributions to the exploration of new applications for superconducting materials and the enhancement of superconducting device performance.

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Acknowledgement

This research was supported by National R&D Program through the National Research Foundation of Korea (NRF) funded by Ministry of Science and ICT (2022M3I9A1076881)

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