Ceramic Thermal Insulators with Anisotropic Morphology
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- FUKUSHIMA Manabu
- National Institute of Advanced Industrial Science and Technology (AIST)
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- YOSHIZAWA Yu-ichi
- National Institute of Advanced Industrial Science and Technology (AIST)
Bibliographic Information
- Other Title
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- 異方性組織をもつセラミックス断熱材
- イホウセイ ソシキ オ モツ セラミックス ダンネツザイ
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Description
<p>Unidirectional anisotropic pore morphologies could be created by using a gelation of mullite particles dispersed slurry with and without an anti-freezing protein additive, and the freezing process, resulting in micrometer-sized cells with very high porosities of up to 91 vol%. The addition of ice binding proteins effectively inhibited the formation of coarse ice crystals, reduced the resultant cell size and provided uniform size distribution in insulators obtained. The insulators prepared showed the thermal conductivity from 0.23 to 0.38 W/mK and the compressive strength around 1.4–21.7 MPa. These properties could be modulated by varying process parameters of the gelation and freezing with solid loading in the initial slurry, anti-freezing protein, sintering additive. This unique approach can be used to produce insulators with macro-cellular anisotropic morphology and very high porosity, suitable for a variety of industrial applications.</p>
Journal
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- Journal of the Japan Society of Powder and Powder Metallurgy
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Journal of the Japan Society of Powder and Powder Metallurgy 67 (11), 601-606, 2020-11-15
Japan Society of Powder and Powder Metallurgy
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Keywords
Details 詳細情報について
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- CRID
- 1390004951535120512
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- NII Article ID
- 130007939845
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- NII Book ID
- AN00222724
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- ISSN
- 18809014
- 05328799
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- NDL BIB ID
- 030776708
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- Text Lang
- ja
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed