Chemically Bonded Phosphate Ceramics: I, A Dissolution Model of Formation
This is the first of three papers in which the kinetics of formation of chemically bonded phosphate ceramics is discussed. A literature survey indicates that the formation of such ceramics is a three‐step process. First, oxides dissolve in a phosphoric acid or an acid phosphate solution and metal io...
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| Veröffentlicht in: | Journal of the American Ceramic Society 2003-11, Vol.86 (11), p.1838-1844 |
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| container_title | Journal of the American Ceramic Society |
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| creator | Wagh, Arun S. Jeong, Seung Y. |
| description | This is the first of three papers in which the kinetics of formation of chemically bonded phosphate ceramics is discussed. A literature survey indicates that the formation of such ceramics is a three‐step process. First, oxides dissolve in a phosphoric acid or an acid phosphate solution and metal ions are released into the solution. The aquoions formed from these cations then react with phosphate anions and form a gel of metal hydrophosphates. In the last step, the saturated gel crystallizes into a ceramic. In this paper, we have proposed that the dissolution is the controlling step and developed a general dissolution model of the kinetics of formation of these ceramics. As an example, the model is used to discuss the kinetics of formation of magnesium phosphate ceramics in detail. In the second and third papers, the model has been used to develop processes to form ceramics of alumina and iron oxides. |
| doi_str_mv | 10.1111/j.1151-2916.2003.tb03569.x |
| format | Article |
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A literature survey indicates that the formation of such ceramics is a three‐step process. First, oxides dissolve in a phosphoric acid or an acid phosphate solution and metal ions are released into the solution. The aquoions formed from these cations then react with phosphate anions and form a gel of metal hydrophosphates. In the last step, the saturated gel crystallizes into a ceramic. In this paper, we have proposed that the dissolution is the controlling step and developed a general dissolution model of the kinetics of formation of these ceramics. As an example, the model is used to discuss the kinetics of formation of magnesium phosphate ceramics in detail. In the second and third papers, the model has been used to develop processes to form ceramics of alumina and iron oxides.</description><identifier>ISSN: 0002-7820</identifier><identifier>EISSN: 1551-2916</identifier><identifier>DOI: 10.1111/j.1151-2916.2003.tb03569.x</identifier><identifier>CODEN: JACTAW</identifier><language>eng</language><publisher>Westerville, Ohio: American Ceramics Society</publisher><subject>Applied sciences ; Building materials. Ceramics. 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A literature survey indicates that the formation of such ceramics is a three‐step process. First, oxides dissolve in a phosphoric acid or an acid phosphate solution and metal ions are released into the solution. The aquoions formed from these cations then react with phosphate anions and form a gel of metal hydrophosphates. In the last step, the saturated gel crystallizes into a ceramic. In this paper, we have proposed that the dissolution is the controlling step and developed a general dissolution model of the kinetics of formation of these ceramics. As an example, the model is used to discuss the kinetics of formation of magnesium phosphate ceramics in detail. In the second and third papers, the model has been used to develop processes to form ceramics of alumina and iron oxides.</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>formation</subject><subject>Miscellaneous</subject><subject>modeling/model</subject><subject>phosphates</subject><subject>Technical ceramics</subject><issn>0002-7820</issn><issn>1551-2916</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2003</creationdate><recordtype>article</recordtype><recordid>eNqVkF1v0zAUhi0EEmXwH6xJcEWKfew4zq7osg-KRjdgEtJujrzEVlPSuLNT0f57HLUCiTt8c-RzHr_Hegg55WzK0_mwSiXnGZRcTYExMR0emchVOd09IxOeH0fPyYQxBlmhgb0kr2JcpSsvtZyQebW067Y2Xben575vbEPvlj5ulmawtLLBpGE8o_P3dEYv2hh9tx1a39MvvrEd9Y5e-bA2Y-s1eeFMF-2bYz0h91eX99Wn7Ob2el7NbrJaSqkz0chHKFxpQLKmVmCkkUyXqrGaSyEtAyes00rqsoZGOClUw6RjOtdQ5E6ckHeH2E3wT1sbB1y3sbZdZ3rrtxGh0BxYXibw9B9w5behT19D4EUJBShI0NkBqoOPMViHm9CuTdgjZzgaxhWOhnHUiKNhPBrGXXr89rjBxGTQBdPXbfybkEPaIlXiPh64X21n9_-xAT_PqkuuhU4R2SGijYPd_Ykw4SeqQhQ5_lhc4wIevi6-P3xDLX4DW9OdPg</recordid><startdate>200311</startdate><enddate>200311</enddate><creator>Wagh, Arun S.</creator><creator>Jeong, Seung Y.</creator><general>American Ceramics Society</general><general>Blackwell</general><general>Wiley Subscription Services, Inc</general><scope>BSCLL</scope><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7QQ</scope><scope>7SR</scope><scope>8FD</scope><scope>JG9</scope></search><sort><creationdate>200311</creationdate><title>Chemically Bonded Phosphate Ceramics: I, A Dissolution Model of Formation</title><author>Wagh, Arun S. ; Jeong, Seung Y.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c4448-3d4b27f9a240dc62a4a40896de81434e02f3ef86489c2d3f436d04f0858275f3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2003</creationdate><topic>Applied sciences</topic><topic>Building materials. 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A literature survey indicates that the formation of such ceramics is a three‐step process. First, oxides dissolve in a phosphoric acid or an acid phosphate solution and metal ions are released into the solution. The aquoions formed from these cations then react with phosphate anions and form a gel of metal hydrophosphates. In the last step, the saturated gel crystallizes into a ceramic. In this paper, we have proposed that the dissolution is the controlling step and developed a general dissolution model of the kinetics of formation of these ceramics. As an example, the model is used to discuss the kinetics of formation of magnesium phosphate ceramics in detail. In the second and third papers, the model has been used to develop processes to form ceramics of alumina and iron oxides.</abstract><cop>Westerville, Ohio</cop><pub>American Ceramics Society</pub><doi>10.1111/j.1151-2916.2003.tb03569.x</doi><tpages>7</tpages></addata></record> |
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| source | Wiley Online Library Journals Frontfile Complete |
| subjects | Applied sciences Building materials. Ceramics. Glasses Ceramic industries Chemical industry and chemicals Exact sciences and technology formation Miscellaneous modeling/model phosphates Technical ceramics |
| title | Chemically Bonded Phosphate Ceramics: I, A Dissolution Model of Formation |
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