Preparation and Some Properties of Porous Mullite Ceramics Using Needle-like Crystals
Porous mullite ceramics with porosity of 26-57% were prepared from needle-like mullite crystals of 3-5μm long and 0.5-1.0μm in diameter synthesized by firing New Zealand kaolin at 1650°C. Pore characteristic (porosity, pore diameter), three points bending strength and thermal conductivity were exami...
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| Veröffentlicht in: | Journal of the Ceramic Society of Japan 1991/08/01, Vol.99(1152), pp.723-726 |
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| container_title | Journal of the Ceramic Society of Japan |
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| creator | KATSUKI, Hiroaki KAWAHARA, Akihiko ICHINOSE, Hiromichi FURUTA, Sachiko MATSUDA, Ohsaku |
| description | Porous mullite ceramics with porosity of 26-57% were prepared from needle-like mullite crystals of 3-5μm long and 0.5-1.0μm in diameter synthesized by firing New Zealand kaolin at 1650°C. Pore characteristic (porosity, pore diameter), three points bending strength and thermal conductivity were examined on the porous mullite ceramics sintered at 1550°-1700°C in air. With increasing sintering temperature, the pore volume decreased, resulting in an increase in the bending strength. However, the pore size distribution was almost independent of the sintering temperature. The average pore diameters for the porous mullite ceramics sintered at 1550°-1700°C were in the range of 0.46-0.58μm. Thermal conductivity at room temperature decreased linearly with increasing porosity. |
| doi_str_mv | 10.2109/jcersj.99.723 |
| format | Article |
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Pore characteristic (porosity, pore diameter), three points bending strength and thermal conductivity were examined on the porous mullite ceramics sintered at 1550°-1700°C in air. With increasing sintering temperature, the pore volume decreased, resulting in an increase in the bending strength. However, the pore size distribution was almost independent of the sintering temperature. The average pore diameters for the porous mullite ceramics sintered at 1550°-1700°C were in the range of 0.46-0.58μm. Thermal conductivity at room temperature decreased linearly with increasing porosity.</description><identifier>ISSN: 0914-5400</identifier><identifier>EISSN: 1882-1022</identifier><identifier>DOI: 10.2109/jcersj.99.723</identifier><language>eng ; jpn</language><publisher>The Ceramic Society of Japan</publisher><subject>Kaolin ; Needle-like mullite ; Porosity ; Porous ceramics ; Thermal conductivity</subject><ispartof>Journal of the Ceramic Society of Japan, 1991/08/01, Vol.99(1152), pp.723-726</ispartof><rights>The Ceramic Society of Japan</rights><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c3153-8a586126eeabb8f4df5a74ad05f2e6f0f82be5a5698c114dedb9199f1a403c673</citedby></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,776,780,1877,4010,27900,27901,27902</link.rule.ids></links><search><creatorcontrib>KATSUKI, Hiroaki</creatorcontrib><creatorcontrib>KAWAHARA, Akihiko</creatorcontrib><creatorcontrib>ICHINOSE, Hiromichi</creatorcontrib><creatorcontrib>FURUTA, Sachiko</creatorcontrib><creatorcontrib>MATSUDA, Ohsaku</creatorcontrib><title>Preparation and Some Properties of Porous Mullite Ceramics Using Needle-like Crystals</title><title>Journal of the Ceramic Society of Japan</title><addtitle>J. Ceram. Soc. Japan</addtitle><description>Porous mullite ceramics with porosity of 26-57% were prepared from needle-like mullite crystals of 3-5μm long and 0.5-1.0μm in diameter synthesized by firing New Zealand kaolin at 1650°C. Pore characteristic (porosity, pore diameter), three points bending strength and thermal conductivity were examined on the porous mullite ceramics sintered at 1550°-1700°C in air. With increasing sintering temperature, the pore volume decreased, resulting in an increase in the bending strength. However, the pore size distribution was almost independent of the sintering temperature. The average pore diameters for the porous mullite ceramics sintered at 1550°-1700°C were in the range of 0.46-0.58μm. Thermal conductivity at room temperature decreased linearly with increasing porosity.</description><subject>Kaolin</subject><subject>Needle-like mullite</subject><subject>Porosity</subject><subject>Porous ceramics</subject><subject>Thermal conductivity</subject><issn>0914-5400</issn><issn>1882-1022</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1991</creationdate><recordtype>article</recordtype><recordid>eNo9kMtuwjAQRa2qlYooy-79A6EeP4K9rFBfErRILWvLccbUNCTIDgv-vkEgVmcx545mLiGPwKYcmHnaekx5OzVmOuPihoxAa14A4_yWjJgBWSjJ2D2Z5BwrxrjUsmRiRNarhHuXXB-7lrq2pt_dDukqdXtMfcRMu0BXXeoOmS4PTRN7pHNMbhd9pusc2w39RKwbLJr4N4zSMfeuyQ_kLgzAyYVjsn59-Zm_F4uvt4_586LwApQotFO6BF4iuqrSQdZBuZl0NVOBYxlY0LxC5VRptAeQNdaVAWMCOMmEL2diTIrzXp-6nBMGu09x59LRArOnWuy5FmuMHWoZ_MXZ3w5nbvBqu-FX3-DFBqP1KQGg-JVD_Kr5X5cstuIflX9ydg</recordid><startdate>1991</startdate><enddate>1991</enddate><creator>KATSUKI, Hiroaki</creator><creator>KAWAHARA, Akihiko</creator><creator>ICHINOSE, Hiromichi</creator><creator>FURUTA, Sachiko</creator><creator>MATSUDA, Ohsaku</creator><general>The Ceramic Society of Japan</general><scope>AAYXX</scope><scope>CITATION</scope></search><sort><creationdate>1991</creationdate><title>Preparation and Some Properties of Porous Mullite Ceramics Using Needle-like Crystals</title><author>KATSUKI, Hiroaki ; KAWAHARA, Akihiko ; ICHINOSE, Hiromichi ; FURUTA, Sachiko ; MATSUDA, Ohsaku</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c3153-8a586126eeabb8f4df5a74ad05f2e6f0f82be5a5698c114dedb9199f1a403c673</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng ; jpn</language><creationdate>1991</creationdate><topic>Kaolin</topic><topic>Needle-like mullite</topic><topic>Porosity</topic><topic>Porous ceramics</topic><topic>Thermal conductivity</topic><toplevel>online_resources</toplevel><creatorcontrib>KATSUKI, Hiroaki</creatorcontrib><creatorcontrib>KAWAHARA, Akihiko</creatorcontrib><creatorcontrib>ICHINOSE, Hiromichi</creatorcontrib><creatorcontrib>FURUTA, Sachiko</creatorcontrib><creatorcontrib>MATSUDA, Ohsaku</creatorcontrib><collection>CrossRef</collection><jtitle>Journal of the Ceramic Society of Japan</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>KATSUKI, Hiroaki</au><au>KAWAHARA, Akihiko</au><au>ICHINOSE, Hiromichi</au><au>FURUTA, Sachiko</au><au>MATSUDA, Ohsaku</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Preparation and Some Properties of Porous Mullite Ceramics Using Needle-like Crystals</atitle><jtitle>Journal of the Ceramic Society of Japan</jtitle><addtitle>J. Ceram. Soc. Japan</addtitle><date>1991</date><risdate>1991</risdate><volume>99</volume><issue>1152</issue><spage>723</spage><epage>726</epage><pages>723-726</pages><issn>0914-5400</issn><eissn>1882-1022</eissn><abstract>Porous mullite ceramics with porosity of 26-57% were prepared from needle-like mullite crystals of 3-5μm long and 0.5-1.0μm in diameter synthesized by firing New Zealand kaolin at 1650°C. Pore characteristic (porosity, pore diameter), three points bending strength and thermal conductivity were examined on the porous mullite ceramics sintered at 1550°-1700°C in air. With increasing sintering temperature, the pore volume decreased, resulting in an increase in the bending strength. However, the pore size distribution was almost independent of the sintering temperature. The average pore diameters for the porous mullite ceramics sintered at 1550°-1700°C were in the range of 0.46-0.58μm. Thermal conductivity at room temperature decreased linearly with increasing porosity.</abstract><pub>The Ceramic Society of Japan</pub><doi>10.2109/jcersj.99.723</doi><tpages>4</tpages><oa>free_for_read</oa></addata></record> |
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| language | eng ; jpn |
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| source | J-STAGE (Japan Science & Technology Information Aggregator, Electronic) Freely Available Titles - Japanese; Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals |
| subjects | Kaolin Needle-like mullite Porosity Porous ceramics Thermal conductivity |
| title | Preparation and Some Properties of Porous Mullite Ceramics Using Needle-like Crystals |
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