• 제목/요약/키워드: Pulsed Laser deposition

검색결과 639건 처리시간 0.037초

발전소 급수계통 부식생성물 농도 측정에 관한 연구 (Study on The Measurement of Corrosion Product Concentration in The Feed Water System of A Power Plant)

  • 문전수;이재근
    • Corrosion Science and Technology
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    • 제10권4호
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    • pp.151-155
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    • 2011
  • The iron oxide particles could be resulted from the corrosion of the circulating water system of a power plant. Because it may be one of the trouble materials which affect the power generation efficiency due to the deposition on steam generator tube and turbine blade, the continuous observation of its concentration is very important. The laser induced break-down detection (LIBD) technology was applied to monitor continuously the concentration of corrosion products with the detection limit of ppb level. The measurement system consists of a Nd:YAG pulsed laser, a polarizing beam splitter, a flow-type sample cell, an acoustic emission sensor, a high speed data acquisition board, a personal computer, etc.. The performance test results confirmed that this technology can be effective to monitor the corrosion product concentration of the circulating water system of a power plant.

나노 데이터 스토로지 시스템의 적용을 위한 펄스 레이저 증착법에 의해 $SrRuO_3/SrTiO_3(100)$ 기판 위에 증착된 $Pb(Zr_{0.2}Ti_{0.8})O_3$ 박막의 이종에피탁셜 성장 (Heteroepitaxial Growth of $Pb(Zr_{0.2}Ti_{0.8})O_3$ Thin Films on $SrRuO_3/SrTiO_3(100)$ Substrates by Pulsed Laser Deposition for Nano-Data Storage Application)

  • 이우성;최규정;윤순길
    • 한국세라믹학회:학술대회논문집
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    • 한국세라믹학회 2004년도 추계총회 및 연구발표회 초록집
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    • pp.79.2-79.2
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    • 2004
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칼코겐화물과 산화물 이종구조의 각도분해능 광전자분광 연구 (Angle-resolved photoemission spectrscopy for chalcogenide and oxide heterostructures)

  • 장영준
    • 진공이야기
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    • 제5권2호
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    • pp.10-17
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    • 2018
  • Chalcogenide and oxide heterostructures have been studied as a next-generation electronic materials, due to their interesting electronic properties, such as direct bandgap semiconductor, ferroelectricity, ferromagnetism, superconductivity, charge-density waves, and metal-insulator transition, and their modification near heterointerfaces, so called, electronic reconstruction. An angle-resolved photoemission spectroscopy (ARPES) is a powerful technique to unveil such novel electronic phases in detail, especially combined with high quality thin film preparation methods, such as, molecular beam epitaxy and pulsed laser deposition. In this article, the recent ARPES results in chalcogenide and oxide thin films will be introduced.