English  |  正體中文  |  简体中文  |  Items with full text/Total items : 70585/70585 (100%)
Visitors : 23114921      Online Users : 508
RC Version 7.0 © Powered By DSPACE, MIT. Enhanced by NTU Library IR team.
Scope Tips:
  • please add "double quotation mark" for query phrases to get precise results
  • please goto advance search for comprehansive author search
  • Adv. Search
    HomeLoginUploadHelpAboutAdminister Goto mobile version

    Please use this identifier to cite or link to this item: http://ir.lib.ncu.edu.tw/handle/987654321/26981

    Title: Thermal radiative emission of LiF and LiNBO3 in the near-infrared spectra
    Authors: Chen,JC;Hu,C;Lee,YC
    Contributors: 機械工程研究所
    Date: 1998
    Issue Date: 2010-06-29 18:04:45 (UTC+8)
    Publisher: 中央大學
    Abstract: The thermal radiation for the wavelengths of 3-5, 5, 10.6 and 8-12 mu m emitted from heating rods is measured in this study by a two-dimensional thermal imaging radiometer. The LiNbO3 and LiF rods with both single crystal and polycrystalline structures are measured. The volumetric emission is enhanced by the scattering effect induced by the polycrystalline rod's porous structure. When the phase is changed from solid to liquid, the sharp decrease of the emission in the 3-5 mu m spectrum has been observed for the polycrystalline rods due to the disappearance of the scattering effect of the porous structure. Indeed, the emission in the 3-5 mu m spectrum does not significantly decrease for a LiF single-crystal rod. However, it still exists for a LiNbO3 single-crystal rod except that the difference in the emission levels decreases. As the phase change from solid to liquid occurs, the emission of LiF and LiNbO3 in the 10.6 mu m spectrum continuously increases regardless of whether the structure is a single crystal or polycrystalline.
    Appears in Collections:[機械工程研究所] 期刊論文

    Files in This Item:

    File Description SizeFormat

    All items in NCUIR are protected by copyright, with all rights reserved.

    社群 sharing

    ::: Copyright National Central University. | 國立中央大學圖書館版權所有 | 收藏本站 | 設為首頁 | 最佳瀏覽畫面: 1024*768 | 建站日期:8-24-2009 :::
    DSpace Software Copyright © 2002-2004  MIT &  Hewlett-Packard  /   Enhanced by   NTU Library IR team Copyright ©   - Feedback  - 隱私權政策聲明