Interfacial Contact Resistance of Single-Crystal Ceramics for Solar Concentrators
An experimental investigation was conducted to determine the thermal conductivity and overall thermal resistance of stacks of single-crystal alumina and magnesia, and zirconia. From these data, the interfacial thermal resistance between the ceramic materials was evaluated over a range of pressures o...
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| Veröffentlicht in: | Journal of thermophysics and heat transfer 1999-01, Vol.13 (1), p.110-116 |
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| container_title | Journal of thermophysics and heat transfer |
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| creator | Mirmira, S. R Fletcher, L. S Baker, K. W |
| description | An experimental investigation was conducted to determine the thermal conductivity and overall thermal resistance of stacks of single-crystal alumina and magnesia, and zirconia. From these data, the interfacial thermal resistance between the ceramic materials was evaluated over a range of pressures of 70-1720 kPa, and at two temperatures of 20 and 60 C. For all three materials, the interfacial thermal resistance decreases significantly with an increase in pressure at lower pressures, beyond which it decreases more gradually. Further, the effect of temperature on the interfacial thermal resistance is negligible for the temperature range investigated. These data were used to develop an equation relating the dimensionless interfacial thermal resistance to the crystal material properties, surface characteristics, crystal thickness, apparent interface pressure, and mean interface temperature. (Author) |
| doi_str_mv | 10.2514/2.6407 |
| format | Article |
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R ; Fletcher, L. S ; Baker, K. W</creator><creatorcontrib>Mirmira, S. R ; Fletcher, L. S ; Baker, K. W</creatorcontrib><description>An experimental investigation was conducted to determine the thermal conductivity and overall thermal resistance of stacks of single-crystal alumina and magnesia, and zirconia. From these data, the interfacial thermal resistance between the ceramic materials was evaluated over a range of pressures of 70-1720 kPa, and at two temperatures of 20 and 60 C. For all three materials, the interfacial thermal resistance decreases significantly with an increase in pressure at lower pressures, beyond which it decreases more gradually. Further, the effect of temperature on the interfacial thermal resistance is negligible for the temperature range investigated. These data were used to develop an equation relating the dimensionless interfacial thermal resistance to the crystal material properties, surface characteristics, crystal thickness, apparent interface pressure, and mean interface temperature. 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These data were used to develop an equation relating the dimensionless interfacial thermal resistance to the crystal material properties, surface characteristics, crystal thickness, apparent interface pressure, and mean interface temperature. (Author)</description><subject>Alumina</subject><subject>Applied sciences</subject><subject>Concentrators</subject><subject>Contact resistance</subject><subject>Energy</subject><subject>Exact sciences and technology</subject><subject>Heat resistance</subject><subject>Interfaces (materials)</subject><subject>Magnesia</subject><subject>Natural energy</subject><subject>Pressure effects</subject><subject>Single crystals</subject><subject>Solar collectors</subject><subject>Solar concentrators</subject><subject>Solar energy</subject><subject>Solar thermal conversion</subject><subject>Thermal conductivity of solids</subject><subject>Thermal effects</subject><subject>Zirconia</subject><issn>0887-8722</issn><issn>1533-6808</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1999</creationdate><recordtype>article</recordtype><recordid>eNp9kdtKAzEQhoMoWKs-w4Ki3qzmuMleSvEEgmj1Okyziaykm5qkoG9vSoWCijAwMPPNPyeEDgk-p4LwC3recCy30IgIxupGYbWNRlgpWStJ6S7aS-kNY9IoSUbo8W7INjowPfhqEoYMJldPNvUpw2BsFVw17YdXb-tJ_CyxAtkI896kyoVYTYOHuKozdsgRcohpH-048MkefPsxerm-ep7c1vcPN3eTy_saOKa5ZgS4mBVTSnADQkoOnQDRUWAzy41srXDGEiW5MbJM6zquulnbcgkzwRo2Rqdr3UUM70ubsp73yVjvYbBhmbTkvKGlui3kyb8klZiLVrECHv0A38IyDmULTRmhmHApmo2ciSGlaJ1exH4O8VMTrFcf0FSvPlDA4285SAa8i-WifdrQTcN42266Qg-w6fhL7Owvap3Vi85pt_Q-24_MvgDIbp0A</recordid><startdate>19990101</startdate><enddate>19990101</enddate><creator>Mirmira, S. 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Further, the effect of temperature on the interfacial thermal resistance is negligible for the temperature range investigated. These data were used to develop an equation relating the dimensionless interfacial thermal resistance to the crystal material properties, surface characteristics, crystal thickness, apparent interface pressure, and mean interface temperature. (Author)</abstract><cop>Reston, VA</cop><pub>American Institute of Aeronautics and Astronautics</pub><doi>10.2514/2.6407</doi><tpages>7</tpages></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0887-8722 |
| ispartof | Journal of thermophysics and heat transfer, 1999-01, Vol.13 (1), p.110-116 |
| issn | 0887-8722 1533-6808 |
| language | eng |
| recordid | cdi_aiaa_journals_10_2514_2_6407 |
| source | Alma/SFX Local Collection |
| subjects | Alumina Applied sciences Concentrators Contact resistance Energy Exact sciences and technology Heat resistance Interfaces (materials) Magnesia Natural energy Pressure effects Single crystals Solar collectors Solar concentrators Solar energy Solar thermal conversion Thermal conductivity of solids Thermal effects Zirconia |
| title | Interfacial Contact Resistance of Single-Crystal Ceramics for Solar Concentrators |
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