Effect of seeds on the formation of sol-gel mullite
Mullite precursor gels have been prepared from a mixture of particulate boehmite sol and tetraethoxysilane at a pH of 4. The sol has been seeded with submicron size α-Al 2O 3, γ-Al 2O 3 and mullite limited to two percent by weight of the mullite phase. These gels have been invesitgated with respect...
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Veröffentlicht in: | Ceramics international 1997, Vol.23 (6), p.537-543 |
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container_title | Ceramics international |
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creator | Anilkumar, G.M. Hareesh, U.S. Damodaran, A.D. Warrier, K.G.K. |
description | Mullite precursor gels have been prepared from a mixture of particulate boehmite sol and tetraethoxysilane at a pH of 4. The sol has been seeded with submicron size α-Al
2O
3, γ-Al
2O
3 and mullite limited to two percent by weight of the mullite phase. These gels have been invesitgated with respect to phase formation, densification and microstructural development. Dilatometric studies on the seeded precursor gels indicate marked shrinkage in their profiles. Of the different seed nuclei, fine mullite particles have shown excellent influence in the early ceramic phase formation as well as densification. Further they induce complete transformation of the precursor gel to the high temperature phase as well as a uniform fine-grained microstructure. |
doi_str_mv | 10.1016/S0272-8842(96)00066-1 |
format | Article |
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2O
3, γ-Al
2O
3 and mullite limited to two percent by weight of the mullite phase. These gels have been invesitgated with respect to phase formation, densification and microstructural development. Dilatometric studies on the seeded precursor gels indicate marked shrinkage in their profiles. Of the different seed nuclei, fine mullite particles have shown excellent influence in the early ceramic phase formation as well as densification. Further they induce complete transformation of the precursor gel to the high temperature phase as well as a uniform fine-grained microstructure.</description><identifier>ISSN: 0272-8842</identifier><identifier>EISSN: 1873-3956</identifier><identifier>DOI: 10.1016/S0272-8842(96)00066-1</identifier><language>eng</language><publisher>Kidlington: Elsevier Ltd</publisher><subject>Applied sciences ; Building materials. Ceramics. Glasses ; Ceramic industries ; Chemical industry and chemicals ; Exact sciences and technology ; Structural ceramics ; Technical ceramics</subject><ispartof>Ceramics international, 1997, Vol.23 (6), p.537-543</ispartof><rights>1997</rights><rights>1998 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c464t-7770a527bb36c59136cdbada0d6ea17f4860a8f9dba4cccb567887f62bc4e3ad3</citedby><cites>FETCH-LOGICAL-c464t-7770a527bb36c59136cdbada0d6ea17f4860a8f9dba4cccb567887f62bc4e3ad3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/S0272-8842(96)00066-1$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,780,784,3548,4022,27922,27923,27924,45994</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=2084152$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><contributor>WCA</contributor><creatorcontrib>Anilkumar, G.M.</creatorcontrib><creatorcontrib>Hareesh, U.S.</creatorcontrib><creatorcontrib>Damodaran, A.D.</creatorcontrib><creatorcontrib>Warrier, K.G.K.</creatorcontrib><title>Effect of seeds on the formation of sol-gel mullite</title><title>Ceramics international</title><description>Mullite precursor gels have been prepared from a mixture of particulate boehmite sol and tetraethoxysilane at a pH of 4. The sol has been seeded with submicron size α-Al
2O
3, γ-Al
2O
3 and mullite limited to two percent by weight of the mullite phase. These gels have been invesitgated with respect to phase formation, densification and microstructural development. Dilatometric studies on the seeded precursor gels indicate marked shrinkage in their profiles. Of the different seed nuclei, fine mullite particles have shown excellent influence in the early ceramic phase formation as well as densification. Further they induce complete transformation of the precursor gel to the high temperature phase as well as a uniform fine-grained microstructure.</description><subject>Applied sciences</subject><subject>Building materials. Ceramics. Glasses</subject><subject>Ceramic industries</subject><subject>Chemical industry and chemicals</subject><subject>Exact sciences and technology</subject><subject>Structural ceramics</subject><subject>Technical ceramics</subject><issn>0272-8842</issn><issn>1873-3956</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1997</creationdate><recordtype>article</recordtype><recordid>eNqNkE1LAzEURYMoWKs_QZiFiC5Gk0y-ZiVS6gcUXKjrkMm8aCTTqclU8N-baYtb3STk5dx34SB0SvAVwURcP2MqaakUoxe1uMQYC1GSPTQhSlZlVXOxjya_yCE6SukD51zN8ARVc-fADkXvigTQpqJfFsM7FK6PnRl8fo0_fSjfIBTdOgQ_wDE6cCYkONndU_R6N3-ZPZSLp_vH2e2itEywoZRSYsOpbJpKWF6TfLaNaQ1uBRgiHVMCG-XqPGTW2oYLqZR0gjaWQWXaaorOt3tXsf9cQxp055OFEMwS-nXSVHDBiar-A3JRixHkW9DGPqUITq-i70z81gTr0aXeuNSjKF0LvXGpSc6d7QpMsia4aJbWp98wxYoRTjN2s8UgW_nyEHWyHpYWWh-zZN32_o-iH_DHh0s</recordid><startdate>1997</startdate><enddate>1997</enddate><creator>Anilkumar, G.M.</creator><creator>Hareesh, U.S.</creator><creator>Damodaran, A.D.</creator><creator>Warrier, K.G.K.</creator><general>Elsevier Ltd</general><general>Elsevier Science</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7QQ</scope><scope>8FD</scope><scope>JG9</scope><scope>7SR</scope></search><sort><creationdate>1997</creationdate><title>Effect of seeds on the formation of sol-gel mullite</title><author>Anilkumar, G.M. ; Hareesh, U.S. ; Damodaran, A.D. ; Warrier, K.G.K.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c464t-7770a527bb36c59136cdbada0d6ea17f4860a8f9dba4cccb567887f62bc4e3ad3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1997</creationdate><topic>Applied sciences</topic><topic>Building materials. Ceramics. Glasses</topic><topic>Ceramic industries</topic><topic>Chemical industry and chemicals</topic><topic>Exact sciences and technology</topic><topic>Structural ceramics</topic><topic>Technical ceramics</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Anilkumar, G.M.</creatorcontrib><creatorcontrib>Hareesh, U.S.</creatorcontrib><creatorcontrib>Damodaran, A.D.</creatorcontrib><creatorcontrib>Warrier, K.G.K.</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Ceramic Abstracts</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><collection>Engineered Materials Abstracts</collection><jtitle>Ceramics international</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Anilkumar, G.M.</au><au>Hareesh, U.S.</au><au>Damodaran, A.D.</au><au>Warrier, K.G.K.</au><au>WCA</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Effect of seeds on the formation of sol-gel mullite</atitle><jtitle>Ceramics international</jtitle><date>1997</date><risdate>1997</risdate><volume>23</volume><issue>6</issue><spage>537</spage><epage>543</epage><pages>537-543</pages><issn>0272-8842</issn><eissn>1873-3956</eissn><abstract>Mullite precursor gels have been prepared from a mixture of particulate boehmite sol and tetraethoxysilane at a pH of 4. The sol has been seeded with submicron size α-Al
2O
3, γ-Al
2O
3 and mullite limited to two percent by weight of the mullite phase. These gels have been invesitgated with respect to phase formation, densification and microstructural development. Dilatometric studies on the seeded precursor gels indicate marked shrinkage in their profiles. Of the different seed nuclei, fine mullite particles have shown excellent influence in the early ceramic phase formation as well as densification. Further they induce complete transformation of the precursor gel to the high temperature phase as well as a uniform fine-grained microstructure.</abstract><cop>Kidlington</cop><pub>Elsevier Ltd</pub><doi>10.1016/S0272-8842(96)00066-1</doi><tpages>7</tpages></addata></record> |
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source | ScienceDirect Journals (5 years ago - present) |
subjects | Applied sciences Building materials. Ceramics. Glasses Ceramic industries Chemical industry and chemicals Exact sciences and technology Structural ceramics Technical ceramics |
title | Effect of seeds on the formation of sol-gel mullite |
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