• Title/Summary/Keyword: Pulsed Laser deposition

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

  • Moon, Jeon Soo;Lee, Jae Kun
    • Corrosion Science and Technology
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    • v.10 no.4
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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.

  • https://doi.org/10.14773/cst.2011.10.4.151 인용 PDF KSCI

Angle-resolved photoemission spectrscopy for chalcogenide and oxide heterostructures (칼코겐화물과 산화물 이종구조의 각도분해능 광전자분광 연구)

  • Chang, Young Jun
    • Vacuum Magazine
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    • v.5 no.2
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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.

  • https://doi.org/10.5757/vacmac.5.2.10 인용 PDF KSCI