Fabrication of Porous Alumina Ceramics Using Basic Aluminum Lactate as an Inorganic Binder

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  • 無機バインダーとして塩基性乳酸アルミニウムを用いた多孔質アルミナセラミックスの作製
  • ムキ バインダー ト シテ エンキセイ ニュウサン アルミニウム オ モチイタ タコウシツ アルミナセラミックス ノ サクセイ

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Organic binder is usually added to improve the strength of the green body of porous ceramics. However, it is sometimes difficult to maintain the shape of the green body after burning out. In this study, we fabricated porous alumina ceramics using basic aluminum lactate as an inorganic binder. The density of the porous alumina was independent of the quantity of basic aluminum lactate. The strength of green body not only before but also after dewaxing was improved by adding basic aluminum lactate. Addition of basic aluminum lactate as an inorganic binder was also effective in the improvement of the strength of sintered porous alumina, which resulted from neck growth by alumina formed from the basic aluminum lactate. Consequently, it was shown that basic aluminum lactate as an inorganic binder is effective for the improvement of the strength of the sintered body as well as green body.

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