Fabrication of porous alumina ceramics by simultaneous thermal gas generating and thermal slurry solidification

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概要

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• In this study, porous alumina green bodies were formed from alumina slurries by simultaneous thermal gas generating and thermal slurry solidification. In order to cause simultaneous thermal gas generating and thermal slurry solidification, NH4HCO3 and potato starch were used as a gas generating agent and a gelatinizing agent, respectively. Alumina slurries containing NH4HCO3 and potato starch were heated in the 80°C oven, so that porous alumina green bodies were formed. With increasing the amount of NH4HCO3, the visible pore size of the porous alumina block and the number of visible pores in the alumina block increased. Additionally, the alumina slurry containing NH4HCO3 and potato starch was unidirectionally heated from the bottom side, so that a platy alumina green body with a number of through-holes was formed.

• 公益社団法人 日本セラミックス協会の論文
• 2009-05-01

著者

• Nagae Hajime

  National Institute Of Advanced Industrial Science And Technology (aist)

• YAMADA Yasuo

  National Institute of Advanced Industrial Science and Technology

• BANNO Takumi

  National Institute of Advanced Industrial Science and Technology (AIST)

• Yamada Yasuo

  National Institute Of Advanced Industrial Science And Technology (aist)

関連論文

• Improvement of Crashworthiness in Ultra Lightweight Metallic Foam by Heat-Treatment for Microstructural Modification of Base Material
• Fabrication of porous alumina ceramics by simultaneous thermal gas generating and thermal slurry solidification

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