Mullite whiskers derived from kaolin
Short mullite whiskers prepared by firing compacts of kaolin and NH 4Al(SO 4) 2·12H 2O powders, with a small addition (0.8, 1.5 wt%) of NaH 2PO 4·2H 2O, in air 1300 and 1400 °C for 15 h have been characterized in terms of whisker morphology, composition and structure. Relatively uniform whisker shap...
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| Veröffentlicht in: | Ceramics international 2009-03, Vol.35 (2), p.579-583 |
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| container_title | Ceramics international |
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| creator | Kim, B.M. Cho, Y.K. Yoon, S.Y. Stevens, R. Park, H.C. |
| description | Short mullite whiskers prepared by firing compacts of kaolin and NH
4Al(SO
4)
2·12H
2O powders, with a small addition (0.8, 1.5
wt%) of NaH
2PO
4·2H
2O, in air 1300 and 1400
°C for 15
h have been characterized in terms of whisker morphology, composition and structure. Relatively uniform whisker shaped crystals grew within the silicate glass matrix. After chemically leaching the glass matrix with HF solution using a microwave heating source, the resulting whiskers were exposed as isolated crystals and exhibited an aspect ratio of >17 (∼0.5
μm in diameter). The mullite whiskers had a composition of 51.06
mol% Al
2O
3 and 48.94
mol% SiO
2, with an orthorhombic crystallographic structure. |
| doi_str_mv | 10.1016/j.ceramint.2008.01.017 |
| format | Article |
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4Al(SO
4)
2·12H
2O powders, with a small addition (0.8, 1.5
wt%) of NaH
2PO
4·2H
2O, in air 1300 and 1400
°C for 15
h have been characterized in terms of whisker morphology, composition and structure. Relatively uniform whisker shaped crystals grew within the silicate glass matrix. After chemically leaching the glass matrix with HF solution using a microwave heating source, the resulting whiskers were exposed as isolated crystals and exhibited an aspect ratio of >17 (∼0.5
μm in diameter). The mullite whiskers had a composition of 51.06
mol% Al
2O
3 and 48.94
mol% SiO
2, with an orthorhombic crystallographic structure.</description><identifier>ISSN: 0272-8842</identifier><identifier>EISSN: 1873-3956</identifier><identifier>DOI: 10.1016/j.ceramint.2008.01.017</identifier><language>eng</language><publisher>Elsevier Ltd</publisher><subject>A. Calcination ; B. Whiskers ; D. Mullite ; E. Structural applications</subject><ispartof>Ceramics international, 2009-03, Vol.35 (2), p.579-583</ispartof><rights>2008 Elsevier Ltd and Techna Group S.r.l.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c343t-b9f29fa40cc73657c40a7c3c9d5ef26576cfcaedd35265c8ab242790326ee29a3</citedby><cites>FETCH-LOGICAL-c343t-b9f29fa40cc73657c40a7c3c9d5ef26576cfcaedd35265c8ab242790326ee29a3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.ceramint.2008.01.017$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>315,781,785,3551,27926,27927,45997</link.rule.ids></links><search><creatorcontrib>Kim, B.M.</creatorcontrib><creatorcontrib>Cho, Y.K.</creatorcontrib><creatorcontrib>Yoon, S.Y.</creatorcontrib><creatorcontrib>Stevens, R.</creatorcontrib><creatorcontrib>Park, H.C.</creatorcontrib><title>Mullite whiskers derived from kaolin</title><title>Ceramics international</title><description>Short mullite whiskers prepared by firing compacts of kaolin and NH
4Al(SO
4)
2·12H
2O powders, with a small addition (0.8, 1.5
wt%) of NaH
2PO
4·2H
2O, in air 1300 and 1400
°C for 15
h have been characterized in terms of whisker morphology, composition and structure. Relatively uniform whisker shaped crystals grew within the silicate glass matrix. After chemically leaching the glass matrix with HF solution using a microwave heating source, the resulting whiskers were exposed as isolated crystals and exhibited an aspect ratio of >17 (∼0.5
μm in diameter). The mullite whiskers had a composition of 51.06
mol% Al
2O
3 and 48.94
mol% SiO
2, with an orthorhombic crystallographic structure.</description><subject>A. Calcination</subject><subject>B. Whiskers</subject><subject>D. Mullite</subject><subject>E. Structural applications</subject><issn>0272-8842</issn><issn>1873-3956</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2009</creationdate><recordtype>article</recordtype><recordid>eNqFkFtLAzEQhYMoWKt_QfZBfNs1l91k86YUb1DxRZ9DOjvBtHupybbivzdl9Vk4MMxwzoH5CLlktGCUyZt1ARhs5_ux4JTWBWVJ6ojMWK1ELnQlj8mMcsXzui75KTmLcU1TUJd0Rq5edm3rR8y-PnzcYIhZg8HvsclcGLpsY4fW9-fkxNk24sXvnJP3h_u3xVO-fH18XtwtcxClGPOVdlw7W1IAJWSloKRWgQDdVOh4OkhwYLFpRJU2qO2Kl1xpKrhE5NqKObmeerdh-NxhHE3nI2Db2h6HXTRCKMk0lckoJyOEIcaAzmyD72z4NoyaAxSzNn9QzAGKoSxJpeDtFMT0xt5jMBE89oCNDwijaQb_X8UPR71t9A</recordid><startdate>20090301</startdate><enddate>20090301</enddate><creator>Kim, B.M.</creator><creator>Cho, Y.K.</creator><creator>Yoon, S.Y.</creator><creator>Stevens, R.</creator><creator>Park, H.C.</creator><general>Elsevier Ltd</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7QF</scope><scope>7QQ</scope><scope>7SR</scope><scope>8FD</scope><scope>JG9</scope></search><sort><creationdate>20090301</creationdate><title>Mullite whiskers derived from kaolin</title><author>Kim, B.M. ; Cho, Y.K. ; Yoon, S.Y. ; Stevens, R. ; Park, H.C.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c343t-b9f29fa40cc73657c40a7c3c9d5ef26576cfcaedd35265c8ab242790326ee29a3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2009</creationdate><topic>A. Calcination</topic><topic>B. Whiskers</topic><topic>D. Mullite</topic><topic>E. Structural applications</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Kim, B.M.</creatorcontrib><creatorcontrib>Cho, Y.K.</creatorcontrib><creatorcontrib>Yoon, S.Y.</creatorcontrib><creatorcontrib>Stevens, R.</creatorcontrib><creatorcontrib>Park, H.C.</creatorcontrib><collection>CrossRef</collection><collection>Aluminium Industry Abstracts</collection><collection>Ceramic Abstracts</collection><collection>Engineered Materials Abstracts</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><jtitle>Ceramics international</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Kim, B.M.</au><au>Cho, Y.K.</au><au>Yoon, S.Y.</au><au>Stevens, R.</au><au>Park, H.C.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Mullite whiskers derived from kaolin</atitle><jtitle>Ceramics international</jtitle><date>2009-03-01</date><risdate>2009</risdate><volume>35</volume><issue>2</issue><spage>579</spage><epage>583</epage><pages>579-583</pages><issn>0272-8842</issn><eissn>1873-3956</eissn><abstract>Short mullite whiskers prepared by firing compacts of kaolin and NH
4Al(SO
4)
2·12H
2O powders, with a small addition (0.8, 1.5
wt%) of NaH
2PO
4·2H
2O, in air 1300 and 1400
°C for 15
h have been characterized in terms of whisker morphology, composition and structure. Relatively uniform whisker shaped crystals grew within the silicate glass matrix. After chemically leaching the glass matrix with HF solution using a microwave heating source, the resulting whiskers were exposed as isolated crystals and exhibited an aspect ratio of >17 (∼0.5
μm in diameter). The mullite whiskers had a composition of 51.06
mol% Al
2O
3 and 48.94
mol% SiO
2, with an orthorhombic crystallographic structure.</abstract><pub>Elsevier Ltd</pub><doi>10.1016/j.ceramint.2008.01.017</doi><tpages>5</tpages></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0272-8842 |
| ispartof | Ceramics international, 2009-03, Vol.35 (2), p.579-583 |
| issn | 0272-8842 1873-3956 |
| language | eng |
| recordid | cdi_proquest_miscellaneous_33761906 |
| source | Access via ScienceDirect (Elsevier) |
| subjects | A. Calcination B. Whiskers D. Mullite E. Structural applications |
| title | Mullite whiskers derived from kaolin |
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