Observation of Oolitics with Scanning Electron Microscope and Calculation of Water Absorption Percentage.

• Kurokawa Yutaka

  （株）ツチヨシ

• Ozoe Nobuaki

  島根県立工業技術センター

• Ota Hideaki

  中部科学技術センター　工博

Bibliographic Information

Other Title

• オーリチィックの走査電子顕微鏡観察及び吸水率計算
• オーリチィック ノ ソウサ デンシ ケンビキョウ カンサツ オヨビ キュウスイ

Abstract

  The water absorption percentage of oolitics sand, which was made by the changing green sand binder and burning temperature, was measured. Bentonite was added to the oolitics sand to make the green sand, and then water absorption percentage was calculated from the relation between the green sand with bentonite and compactability. The oolitics formation was also observed by SEM to investigate the mechanism of water absorption. The results showed that oolitics is formed from thin layers and microporosity which change when the condition of green sand binder and burning temperature are changed. Water absorption was found to occur mainly between the thin layers. As the thin layers closed, the water absorption percentage dropped.

Journal

• Journal of Japan Foundry Engineering Society

  Journal of Japan Foundry Engineering Society 70 (8), 543-549, 1998

  Japan Foundry Engineering Society

Keywords

• oolitics
• water absorption percentage
• scanning electron microscope
• thin layer
• microporosity
• burning
• green sand

Details

• CRID: 1390282681484821760
• NII Article ID: 10002554070
• NII Book ID: AN10514770
• DOI: 10.11279/jfes.70.543
• ISSN: 21855374
• ISSN: 13420429
• NDL BIB ID: 4546087
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I4546087
• Text Lang: ja
• Data Source:
  • JaLC
  • NDL
  • CiNii Articles
• Abstract License Flag: Disallowed