レーザ照射時のZnO焼結品割れ評価のための均質化法による熱応力解析 Thermal Stress Analysis by Homogenization Method for Fracture Evaluation of Sintered ZnO during Laser Radiation

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The paper describes the requirements to which ZnO evaporates without being fractured while laser is radiated. The fracturing phenomenon is mechanically evaluated. By executing a laser radiation test, the influence of relative densities on the fracture are investigated. It is shown that ZnO sintered billet with the relative density from 0.6 to 0.8 evaporates without being fractured while the laser is radiated. The billet was sintered by hot press. The sintering condition to obtain the ZnO sintering billet with the relative density from 0.6 to 0.8 is restricted within a range of 850°C to 1000°C under the sintering pressure 10MPa. The condition is restricted within a range of 800°C to 900°C under sintering press 15Mpa, whereas that is 800°C under sintering press 20MPa. Microscopic thermal stress and fracture stress appearing in peripheries of the porosity in the sintering billet were calculated by the homogenization method. Since the fracture stress is lower than the thermal stress of billet less than approximately 0.8 of the relative density, the produced billet is not fractured while laser is radiated.

収録刊行物

  • 粉体および粉末冶金  

    粉体および粉末冶金 53(12), 915-920, 2006-12-15 

    Japan Society of Powder and Powder Metallurgy

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各種コード

  • NII論文ID(NAID)
    10018422075
  • NII書誌ID(NCID)
    AN00222724
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    05328799
  • NDL 記事登録ID
    8635639
  • NDL 雑誌分類
    ZP41(科学技術--金属工学・鉱山工学)
  • NDL 請求記号
    Z17-274
  • データ提供元
    CJP書誌  NDL  J-STAGE 
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