DIELECTRIC CERAMIC COMPOSITION AND ELECTRONIC DEVICE
A dielectric ceramic composition comprising a main component expressed by a general formula (Ba1−x−ySrxCay)m(Ti1−zZrz)O3, Mg oxide, oxides of at least one kind selected from Mn and Cr, rare earth oxide, an oxide including Si and a composite oxide including Ba, Sr and Zr. The general formula shows th...
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| creator | KOJIMA TAKASHI SHIBASAKI TOMOYA |
| description | A dielectric ceramic composition comprising a main component expressed by a general formula (Ba1−x−ySrxCay)m(Ti1−zZrz)O3, Mg oxide, oxides of at least one kind selected from Mn and Cr, rare earth oxide, an oxide including Si and a composite oxide including Ba, Sr and Zr. The general formula shows that 0.20 x 0.40, 0 y 0.20, 0 z 0.30, and 0.950 m 1.050. Within a temperature range of −25 to 105° C., a capacitance change rate on the basis of a capacitance at 25° C. is within −15 to +5% with respect to slope "a" which shows capacity temperature characteristic on the basis of the capacitance at 25° C., and the slope "a" is −5500 to −1800 ppm/° C. By the present invention, a dielectric ceramic composition which is able to set the capacitance change rate to a predetermined range with respect to absolute value of capacity temperature characteristic within a wide temperature range even when the absolute value is large can be obtained. |
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The general formula shows that 0.20 x 0.40, 0 y 0.20, 0 z 0.30, and 0.950 m 1.050. Within a temperature range of −25 to 105° C., a capacitance change rate on the basis of a capacitance at 25° C. is within −15 to +5% with respect to slope "a" which shows capacity temperature characteristic on the basis of the capacitance at 25° C., and the slope "a" is −5500 to −1800 ppm/° C. By the present invention, a dielectric ceramic composition which is able to set the capacitance change rate to a predetermined range with respect to absolute value of capacity temperature characteristic within a wide temperature range even when the absolute value is large can be obtained.</description><language>eng</language><subject>ARTIFICIAL STONE ; CEMENTS ; CERAMICS ; CHEMISTRY ; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS ; CONCRETE ; LIME, MAGNESIA ; METALLURGY ; REFRACTORIES ; SLAG ; TREATMENT OF NATURAL STONE</subject><creationdate>2011</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20110811&DB=EPODOC&CC=US&NR=2011195835A1$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25563,76418</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20110811&DB=EPODOC&CC=US&NR=2011195835A1$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>KOJIMA TAKASHI</creatorcontrib><creatorcontrib>SHIBASAKI TOMOYA</creatorcontrib><title>DIELECTRIC CERAMIC COMPOSITION AND ELECTRONIC DEVICE</title><description>A dielectric ceramic composition comprising a main component expressed by a general formula (Ba1−x−ySrxCay)m(Ti1−zZrz)O3, Mg oxide, oxides of at least one kind selected from Mn and Cr, rare earth oxide, an oxide including Si and a composite oxide including Ba, Sr and Zr. The general formula shows that 0.20 x 0.40, 0 y 0.20, 0 z 0.30, and 0.950 m 1.050. Within a temperature range of −25 to 105° C., a capacitance change rate on the basis of a capacitance at 25° C. is within −15 to +5% with respect to slope "a" which shows capacity temperature characteristic on the basis of the capacitance at 25° C., and the slope "a" is −5500 to −1800 ppm/° C. By the present invention, a dielectric ceramic composition which is able to set the capacitance change rate to a predetermined range with respect to absolute value of capacity temperature characteristic within a wide temperature range even when the absolute value is large can be obtained.</description><subject>ARTIFICIAL STONE</subject><subject>CEMENTS</subject><subject>CERAMICS</subject><subject>CHEMISTRY</subject><subject>COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS</subject><subject>CONCRETE</subject><subject>LIME, MAGNESIA</subject><subject>METALLURGY</subject><subject>REFRACTORIES</subject><subject>SLAG</subject><subject>TREATMENT OF NATURAL STONE</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2011</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZDBx8XT1cXUOCfJ0VnB2DXL0BdH-vgH-wZ4hnv5-Co5-LgoQBf5-QCkX1zBPZ1ceBta0xJziVF4ozc2g7OYa4uyhm1qQH59aXJCYnJqXWhIfGmxkYGhoaGlqYWzqaGhMnCoAW6YoQA</recordid><startdate>20110811</startdate><enddate>20110811</enddate><creator>KOJIMA TAKASHI</creator><creator>SHIBASAKI TOMOYA</creator><scope>EVB</scope></search><sort><creationdate>20110811</creationdate><title>DIELECTRIC CERAMIC COMPOSITION AND ELECTRONIC DEVICE</title><author>KOJIMA TAKASHI ; SHIBASAKI TOMOYA</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_US2011195835A13</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>2011</creationdate><topic>ARTIFICIAL STONE</topic><topic>CEMENTS</topic><topic>CERAMICS</topic><topic>CHEMISTRY</topic><topic>COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS</topic><topic>CONCRETE</topic><topic>LIME, MAGNESIA</topic><topic>METALLURGY</topic><topic>REFRACTORIES</topic><topic>SLAG</topic><topic>TREATMENT OF NATURAL STONE</topic><toplevel>online_resources</toplevel><creatorcontrib>KOJIMA TAKASHI</creatorcontrib><creatorcontrib>SHIBASAKI TOMOYA</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>KOJIMA TAKASHI</au><au>SHIBASAKI TOMOYA</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>DIELECTRIC CERAMIC COMPOSITION AND ELECTRONIC DEVICE</title><date>2011-08-11</date><risdate>2011</risdate><abstract>A dielectric ceramic composition comprising a main component expressed by a general formula (Ba1−x−ySrxCay)m(Ti1−zZrz)O3, Mg oxide, oxides of at least one kind selected from Mn and Cr, rare earth oxide, an oxide including Si and a composite oxide including Ba, Sr and Zr. The general formula shows that 0.20 x 0.40, 0 y 0.20, 0 z 0.30, and 0.950 m 1.050. Within a temperature range of −25 to 105° C., a capacitance change rate on the basis of a capacitance at 25° C. is within −15 to +5% with respect to slope "a" which shows capacity temperature characteristic on the basis of the capacitance at 25° C., and the slope "a" is −5500 to −1800 ppm/° C. By the present invention, a dielectric ceramic composition which is able to set the capacitance change rate to a predetermined range with respect to absolute value of capacity temperature characteristic within a wide temperature range even when the absolute value is large can be obtained.</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | ARTIFICIAL STONE CEMENTS CERAMICS CHEMISTRY COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS CONCRETE LIME, MAGNESIA METALLURGY REFRACTORIES SLAG TREATMENT OF NATURAL STONE |
| title | DIELECTRIC CERAMIC COMPOSITION AND ELECTRONIC DEVICE |
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