Journal of the Ceramic Society of Japan
Online ISSN : 1348-6535
Print ISSN : 1882-0743
ISSN-L : 1348-6535
テクニカルレポート
吹き付けアモサイトの無害化
武田 はやみ橋本 忍奥田 篤史本多 沢雄淡路 英夫福田 功一郎
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2007 年 115 巻 1345 号 p. 562-566

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According to XRD analysis, when sprayed amosite was heated at over 900°C for 3 h, amosite crystal was not detected in the sample. In contrast, a part of the needlelike amosite grains were not detected in the sprayed amosite using a phase-contrast microscope analysis after heating at 500°C for 3 h. Then the color of the needlelike amosite grains changed to red, because Fe2O3 (hematite) was precipitated at the surface of the amosite grains. The grindability of the needlelike amosite grains was improved with an increase of the heating temperature. When the sprayed amosite was heated at 1100°C for 3 h, a fine powder with under aspect ratio of 3 was obtained after grinding.

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© 2007 The Ceramic Society of Japan
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