X線回析によるオーリチィックの定量分析 Quantitative Analysis of Oolitics by X-Ray Diffractometer

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Composition is the most important element in controlling green sand. Oolitics, one of the composition, is quantified by analyzing quartz by the silica program test. However this test takes more than 8 hours and the analyzer needs to spend one hour on this work. To shorten this time, we examined another method to quantify oolitics by using X-ray diffractometric analysis for quartz. We chose the calibration curve method as a quantitative. First, we changed the quartz content by using quartz and feldspar, then measured the diffraction X-ray intensity, and obtained calibration curve between quartz content and diffraction X-ray intensity. As a result of comparing each diffraction X-ray intensity of the first peak (angle of diffraction is 2 θ 26.6°) and the second peak (2 θ 20.9°) with quartz quantity analyzed from the silica program, the quantitative precision from the second peak was found to be better, because there was no other material peaked around 2 θ 20.9° for green sand. Although it takes almost 6 hours to analyze quartz by X-ray diffractometric analysis, the actual working time for the analyzer was shortened less than 30 minutes, and the efficiency improved more than two times compared with the silica program test.日本鋳造工学会(http://www.jfs.or.jp/)

  Composition is the most important element in controlling green sand. Oolitics, one of the composition, is quantified by analyzing quartz by the silica program test. However this test takes more than 8 hours and the analyzer needs to spend one hour on this work. To shorten this time, we examined another method to quantify oolitics by using X-ray diffractometric analysis for quartz. We chose the calibration curve method as a quantitative. First, we changed the quartz content by using quartz and feldspar, then measured the diffraction X-ray intensity, and obtained calibration curve between quartz content and diffraction X-ray intensity. As a result of comparing each diffraction X-ray intensity of the first peak (angle of diffraction is 2 <i>θ</i> 26.6°) and the second peak (2 <i>θ</i> 20.9°) with quartz quantity analyzed from the silica program, the quantitative precision from the second peak was found to be better, because there was no other material peaked around 2 <i>θ</i> 20.9° for green sand. Although it takes almost 6 hours to analyze quartz by X-ray diffractometric analysis, the actual working time for the analyzer was shortened less than 30 minutes, and the efficiency improved more than two times compared with the silica program test.

収録刊行物

  • 鋳造工学 = Journal of Japan Foundry Engineering Society  

    鋳造工学 = Journal of Japan Foundry Engineering Society 71(3), 177-182, 1999-03 

    日本鋳造工学会

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各種コード

  • NII論文ID(NAID)
    10002554911
  • NII書誌ID(NCID)
    AN10514770
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    13420429
  • NDL 記事登録ID
    4683518
  • NDL 雑誌分類
    ZP41(科学技術--金属工学・鉱山工学)
  • NDL 請求記号
    Z17-277
  • データ提供元
    CJP書誌  NDL  IR  J-STAGE 
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