Analysis of Temperature/Stress Distributions in Thermal Shocked Ceramic Disks in Relation to Temperature-Dependent Properties
An infrared irradiation heating method has previously been proposed as a technique for directly estimating thermal shock parameters from an electric charge. In this method, a thin circular disk is irradiated with infrared rays over its central area at a constant heat flux. In this report, we analyze...
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Veröffentlicht in: | Journal of the Ceramic Society of Japan 1998/04/01, Vol.106(1232), pp.358-362 |
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container_title | Journal of the Ceramic Society of Japan |
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creator | AWAJI, Hideo TAKAHASHI, Toshifumi YAMAMOTO, Naoto NISHIKAWA, Tadahiro |
description | An infrared irradiation heating method has previously been proposed as a technique for directly estimating thermal shock parameters from an electric charge. In this method, a thin circular disk is irradiated with infrared rays over its central area at a constant heat flux. In this report, we analyzed the temperature/thermal stress distributions in the disk in relation to the temperature-dependent material properties of ceramics, namely the temperature distributions relating to temperature-dependent thermal conductivity and thermal diffusivity, and the thermal stress distributions relating to temperature-dependent thermal conductivity, thermal diffusivity and thermal expansion. The results reveal that these temperature-dependent properties yield marked effects on the temperature/stress distributions in the disk. A number of possibilities are suggested for decreasing thermal stresses in ceramic structures by selecting appropriate combinations of temperature-dependent properties. |
doi_str_mv | 10.2109/jcersj.106.358 |
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In this method, a thin circular disk is irradiated with infrared rays over its central area at a constant heat flux. In this report, we analyzed the temperature/thermal stress distributions in the disk in relation to the temperature-dependent material properties of ceramics, namely the temperature distributions relating to temperature-dependent thermal conductivity and thermal diffusivity, and the thermal stress distributions relating to temperature-dependent thermal conductivity, thermal diffusivity and thermal expansion. The results reveal that these temperature-dependent properties yield marked effects on the temperature/stress distributions in the disk. 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Ceram. Soc. Japan</addtitle><description>An infrared irradiation heating method has previously been proposed as a technique for directly estimating thermal shock parameters from an electric charge. In this method, a thin circular disk is irradiated with infrared rays over its central area at a constant heat flux. In this report, we analyzed the temperature/thermal stress distributions in the disk in relation to the temperature-dependent material properties of ceramics, namely the temperature distributions relating to temperature-dependent thermal conductivity and thermal diffusivity, and the thermal stress distributions relating to temperature-dependent thermal conductivity, thermal diffusivity and thermal expansion. The results reveal that these temperature-dependent properties yield marked effects on the temperature/stress distributions in the disk. A number of possibilities are suggested for decreasing thermal stresses in ceramic structures by selecting appropriate combinations of temperature-dependent properties.</description><subject>Applied sciences</subject><subject>Building materials. Ceramics. Glasses</subject><subject>Ceramic industries</subject><subject>Ceramics</subject><subject>Chemical industry and chemicals</subject><subject>Exact sciences and technology</subject><subject>Structural ceramics</subject><subject>Technical ceramics</subject><subject>Temperature distribution</subject><subject>Temperature-dependency</subject><subject>Thermal shock</subject><subject>Thermal stress</subject><issn>0914-5400</issn><issn>1882-1022</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1998</creationdate><recordtype>article</recordtype><recordid>eNpNkEtvGyEURlHUSrHcbLtmEWU3DjDAzCwtO31IUVs17np0B9-JsefhcPEii_734thyuuIC5zugj7HPUsyUFNX91mGg7UwKO8tNecUmsixVJoVSH9hEVFJnRgtxzW6IfCOE0qW2Ip-wv_MBulfyxMeWr7DfY4B4CHj_FAMS8aWnGHxziH4ciPuBrzYYeuj402Z0O1zzRQr03h3B3RvwGzs40jyO_wuzJe5xWOMQ-a8wptPokT6xjy10hDfndcr-fHlYLb5ljz-_fl_MHzOnKxGztdAKGiFlnjtnrGkbVRZYScDCKDQA1oG2kJcKjENnXQNFI0zetlIVKg1Tdnfy7sP4ckCKde_JYdfBgOOBamVtIVSuEjg7gS6MRAHbeh98D-G1lqI-Fl2fik5bW6eiU-D2bAZy0LUBBufpklKqsNrohP04YVuK8IyXe0g1uA7PVlmV5ZtZpr-8D-mdC-g2EGoc8n9gvpxc</recordid><startdate>19980401</startdate><enddate>19980401</enddate><creator>AWAJI, Hideo</creator><creator>TAKAHASHI, Toshifumi</creator><creator>YAMAMOTO, Naoto</creator><creator>NISHIKAWA, Tadahiro</creator><general>The Ceramic Society of Japan</general><general>Nippon seramikkusu kyokai</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>8FD</scope><scope>JG9</scope></search><sort><creationdate>19980401</creationdate><title>Analysis of Temperature/Stress Distributions in Thermal Shocked Ceramic Disks in Relation to Temperature-Dependent Properties</title><author>AWAJI, Hideo ; TAKAHASHI, Toshifumi ; YAMAMOTO, Naoto ; NISHIKAWA, Tadahiro</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c490t-d042ab01133cc565fb287e91ae752e5aa6ca46a382a5cec6cba7b053ff1272053</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1998</creationdate><topic>Applied sciences</topic><topic>Building materials. 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subjects | Applied sciences Building materials. Ceramics. Glasses Ceramic industries Ceramics Chemical industry and chemicals Exact sciences and technology Structural ceramics Technical ceramics Temperature distribution Temperature-dependency Thermal shock Thermal stress |
title | Analysis of Temperature/Stress Distributions in Thermal Shocked Ceramic Disks in Relation to Temperature-Dependent Properties |
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