Drying Behavior of Colloidal Silica Gels
Observations of the drying behavior of thick‐wall colloidal silica gel structures are reported. Various techniques are examined to prevent cracking during the drying of these highstrain viscoelastic materials. Experiments are described which illustrate the effect of relative humidity on the drying r...
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| Veröffentlicht in: | Journal of the American Ceramic Society 1989-10, Vol.72 (10), p.1816-1821 |
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| container_title | Journal of the American Ceramic Society |
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| creator | Simpkins, Peter G. Johnson Jr, David W. Fleming, Debra A. |
| description | Observations of the drying behavior of thick‐wall colloidal silica gel structures are reported. Various techniques are examined to prevent cracking during the drying of these highstrain viscoelastic materials. Experiments are described which illustrate the effect of relative humidity on the drying rate and on the shrinkage of various samples under isothermal conditions. Surface temperature measurements indicate that evaporation occurs at approximately the wet‐bulb temperature of the surrounding atmosphere. Acoustic detection of the internal strain activity during drying leads to the conclusion that control of the sol‐gel surface tension in the material preparation is crucial to reducing the interior stresses. |
| doi_str_mv | 10.1111/j.1151-2916.1989.tb05984.x |
| format | Article |
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Various techniques are examined to prevent cracking during the drying of these highstrain viscoelastic materials. Experiments are described which illustrate the effect of relative humidity on the drying rate and on the shrinkage of various samples under isothermal conditions. Surface temperature measurements indicate that evaporation occurs at approximately the wet‐bulb temperature of the surrounding atmosphere. Acoustic detection of the internal strain activity during drying leads to the conclusion that control of the sol‐gel surface tension in the material preparation is crucial to reducing the interior stresses.</description><identifier>ISSN: 0002-7820</identifier><identifier>EISSN: 1551-2916</identifier><identifier>DOI: 10.1111/j.1151-2916.1989.tb05984.x</identifier><identifier>CODEN: JACTAW</identifier><language>eng</language><publisher>Oxford, UK: Blackwell Publishing Ltd</publisher><subject>Applied sciences ; Building materials. Ceramics. 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Various techniques are examined to prevent cracking during the drying of these highstrain viscoelastic materials. Experiments are described which illustrate the effect of relative humidity on the drying rate and on the shrinkage of various samples under isothermal conditions. Surface temperature measurements indicate that evaporation occurs at approximately the wet‐bulb temperature of the surrounding atmosphere. Acoustic detection of the internal strain activity during drying leads to the conclusion that control of the sol‐gel surface tension in the material preparation is crucial to reducing the interior stresses.</description><subject>Applied sciences</subject><subject>Building materials. Ceramics. Glasses</subject><subject>Ceramic industries</subject><subject>Chemical industry and chemicals</subject><subject>colloids</subject><subject>drying</subject><subject>Exact sciences and technology</subject><subject>fracture</subject><subject>sol-gel</subject><subject>surfactants</subject><subject>Technical ceramics</subject><issn>0002-7820</issn><issn>1551-2916</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1989</creationdate><recordtype>article</recordtype><sourceid>K30</sourceid><recordid>eNqVkMFOGzEQhi1EpQbad1gBQr1s6vGuvTYn6AZCEaWHFnEceW1v62CyYCcleXt2lYgDp-LLyPLnf2Y-Qg6AjqE_X2d94ZAzBWIMSqrxoqFcyXK82iEj4NunXTKilLK8kox-JHspzfprj5cj8mUS137-J_vm_up_votZ12Z1F0LnrQ7ZLx-80dnUhfSJfGh1SO7ztu6T24vz3_Vlfv1z-r0-u84NBxC5MyWlnELT8tJarZiRrAFlqqaxjQYHzupSaGW5stRaaZ0TpjAtZbSwTaOLfXK8yX2M3dPSpQU--GRcCHruumVCxkFWtBL_BZaSsx48fAPOumWc90sgMCWLSiioeupkQ5nYpRRdi4_RP-i4RqA4uMYZDq5xEIqDa9y6xlX_-WjbQiejQxv13Pj0miAEL0sYJjndYM8-uPU7GuDVWX0OEoat802ETwu3eo3Q8R5FVVQc726myH_c1fSGTXBSvADjpqFL</recordid><startdate>198910</startdate><enddate>198910</enddate><creator>Simpkins, Peter G.</creator><creator>Johnson Jr, David W.</creator><creator>Fleming, Debra A.</creator><general>Blackwell Publishing Ltd</general><general>Blackwell</general><general>American Ceramic Society</general><scope>BSCLL</scope><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>HDMVH</scope><scope>K30</scope><scope>PAAUG</scope><scope>PAWHS</scope><scope>PAWZZ</scope><scope>PAXOH</scope><scope>PBHAV</scope><scope>PBQSW</scope><scope>PBYQZ</scope><scope>PCIWU</scope><scope>PCMID</scope><scope>PCZJX</scope><scope>PDGRG</scope><scope>PDWWI</scope><scope>PETMR</scope><scope>PFVGT</scope><scope>PGXDX</scope><scope>PIHIL</scope><scope>PISVA</scope><scope>PJCTQ</scope><scope>PJTMS</scope><scope>PLCHJ</scope><scope>PMHAD</scope><scope>PNQDJ</scope><scope>POUND</scope><scope>PPLAD</scope><scope>PQAPC</scope><scope>PQCAN</scope><scope>PQCMW</scope><scope>PQEME</scope><scope>PQHKH</scope><scope>PQMID</scope><scope>PQNCT</scope><scope>PQNET</scope><scope>PQSCT</scope><scope>PQSET</scope><scope>PSVJG</scope><scope>PVMQY</scope><scope>PZGFC</scope><scope>7QQ</scope><scope>8FD</scope><scope>JG9</scope><scope>7SR</scope></search><sort><creationdate>198910</creationdate><title>Drying Behavior of Colloidal Silica Gels</title><author>Simpkins, Peter G. ; Johnson Jr, David W. ; Fleming, Debra A.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c5116-ec400501bf54dda92c82b19c7bbdba1e1eda46a9d59d0dd8dee6c3cf0203dbba3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1989</creationdate><topic>Applied sciences</topic><topic>Building materials. 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Glasses</topic><topic>Ceramic industries</topic><topic>Chemical industry and chemicals</topic><topic>colloids</topic><topic>drying</topic><topic>Exact sciences and technology</topic><topic>fracture</topic><topic>sol-gel</topic><topic>surfactants</topic><topic>Technical ceramics</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Simpkins, Peter G.</creatorcontrib><creatorcontrib>Johnson Jr, David W.</creatorcontrib><creatorcontrib>Fleming, Debra A.</creatorcontrib><collection>Istex</collection><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Periodicals Index Online Segment 15</collection><collection>Periodicals Index Online</collection><collection>Primary Sources Access—Foundation Edition (Plan E) - West</collection><collection>Primary Sources Access (Plan D) - International</collection><collection>Primary Sources Access & Build (Plan A) - MEA</collection><collection>Primary Sources Access—Foundation Edition (Plan E) - Midwest</collection><collection>Primary Sources Access—Foundation Edition (Plan E) - Northeast</collection><collection>Primary Sources Access (Plan D) - Southeast</collection><collection>Primary Sources Access (Plan D) - North Central</collection><collection>Primary Sources Access—Foundation Edition (Plan E) - Southeast</collection><collection>Primary Sources Access (Plan D) - South Central</collection><collection>Primary Sources Access & Build (Plan A) - UK / I</collection><collection>Primary Sources Access (Plan D) - Canada</collection><collection>Primary Sources Access (Plan D) - EMEALA</collection><collection>Primary Sources Access—Foundation Edition (Plan E) - North Central</collection><collection>Primary Sources Access—Foundation Edition (Plan E) - South Central</collection><collection>Primary Sources Access & Build (Plan A) - International</collection><collection>Primary Sources Access—Foundation Edition (Plan E) - International</collection><collection>Primary Sources Access (Plan D) - West</collection><collection>Periodicals Index Online Segments 1-50</collection><collection>Primary Sources Access (Plan D) - APAC</collection><collection>Primary Sources Access (Plan D) - Midwest</collection><collection>Primary Sources Access (Plan D) - MEA</collection><collection>Primary Sources Access—Foundation Edition (Plan E) - Canada</collection><collection>Primary Sources Access—Foundation Edition (Plan E) - UK / I</collection><collection>Primary Sources Access—Foundation Edition (Plan E) - EMEALA</collection><collection>Primary Sources Access & Build (Plan A) - APAC</collection><collection>Primary Sources Access & Build (Plan A) - Canada</collection><collection>Primary Sources Access & Build (Plan A) - West</collection><collection>Primary Sources Access & Build (Plan A) - EMEALA</collection><collection>Primary Sources Access (Plan D) - Northeast</collection><collection>Primary Sources Access & Build (Plan A) - Midwest</collection><collection>Primary Sources Access & Build (Plan A) - North Central</collection><collection>Primary Sources Access & Build (Plan A) - Northeast</collection><collection>Primary Sources Access & Build (Plan A) - South Central</collection><collection>Primary Sources Access & Build (Plan A) - Southeast</collection><collection>Primary Sources Access (Plan D) - UK / I</collection><collection>Primary Sources Access—Foundation Edition (Plan E) - APAC</collection><collection>Primary Sources Access—Foundation Edition (Plan E) - MEA</collection><collection>Ceramic Abstracts</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><collection>Engineered Materials Abstracts</collection><jtitle>Journal of the American Ceramic Society</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Simpkins, Peter G.</au><au>Johnson Jr, David W.</au><au>Fleming, Debra A.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Drying Behavior of Colloidal Silica Gels</atitle><jtitle>Journal of the American Ceramic Society</jtitle><date>1989-10</date><risdate>1989</risdate><volume>72</volume><issue>10</issue><spage>1816</spage><epage>1821</epage><pages>1816-1821</pages><issn>0002-7820</issn><eissn>1551-2916</eissn><coden>JACTAW</coden><abstract>Observations of the drying behavior of thick‐wall colloidal silica gel structures are reported. Various techniques are examined to prevent cracking during the drying of these highstrain viscoelastic materials. Experiments are described which illustrate the effect of relative humidity on the drying rate and on the shrinkage of various samples under isothermal conditions. Surface temperature measurements indicate that evaporation occurs at approximately the wet‐bulb temperature of the surrounding atmosphere. Acoustic detection of the internal strain activity during drying leads to the conclusion that control of the sol‐gel surface tension in the material preparation is crucial to reducing the interior stresses.</abstract><cop>Oxford, UK</cop><pub>Blackwell Publishing Ltd</pub><doi>10.1111/j.1151-2916.1989.tb05984.x</doi><tpages>6</tpages></addata></record> |
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| ispartof | Journal of the American Ceramic Society, 1989-10, Vol.72 (10), p.1816-1821 |
| issn | 0002-7820 1551-2916 |
| language | eng |
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| source | Wiley Online Library Journals Frontfile Complete; Periodicals Index Online |
| subjects | Applied sciences Building materials. Ceramics. Glasses Ceramic industries Chemical industry and chemicals colloids drying Exact sciences and technology fracture sol-gel surfactants Technical ceramics |
| title | Drying Behavior of Colloidal Silica Gels |
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