Effect of milling on the anisotropic grain growth in a sintered Ba5Nb4O15 specimen and its effect on microwave dielectric properties
In this study, relationships between the processing, microstructure, and properties of barium niobate (Ba5Nb4O15) are investigated. The milling of a Ba5Nb4O15 powder in water is effective with respect to size reduction. However, after milling in water, BaCO3 is formed within the slurry. With the inc...
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| Veröffentlicht in: | International journal of applied ceramic technology 2019-09, Vol.16 (5), p.2094-2100 |
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| container_title | International journal of applied ceramic technology |
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| creator | Tsao, Chung‐Ya Tuan, Wei‐Hsing Feng, Kuei‐Chih |
| description | In this study, relationships between the processing, microstructure, and properties of barium niobate (Ba5Nb4O15) are investigated. The milling of a Ba5Nb4O15 powder in water is effective with respect to size reduction. However, after milling in water, BaCO3 is formed within the slurry. With the increase in the amount of BaCO3 formed, the aspect ratio of the elongated Ba5Nb4O15 grains increases. The formation of the elongated Ba5Nb4O15 grains prohibits the densification. Hence, the microwave dielectric properties, including permittivity and quality factor, are poor because of the low density. In addition, milling in ethanol is carried out for comparison: A lower amount of BaCO3 is formed after milling in ethanol; the extent of anisotropic grain growth is thus reduced. |
| doi_str_mv | 10.1111/ijac.13233 |
| format | Article |
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The milling of a Ba5Nb4O15 powder in water is effective with respect to size reduction. However, after milling in water, BaCO3 is formed within the slurry. With the increase in the amount of BaCO3 formed, the aspect ratio of the elongated Ba5Nb4O15 grains increases. The formation of the elongated Ba5Nb4O15 grains prohibits the densification. Hence, the microwave dielectric properties, including permittivity and quality factor, are poor because of the low density. In addition, milling in ethanol is carried out for comparison: A lower amount of BaCO3 is formed after milling in ethanol; the extent of anisotropic grain growth is thus reduced.</description><identifier>ISSN: 1546-542X</identifier><identifier>EISSN: 1744-7402</identifier><identifier>DOI: 10.1111/ijac.13233</identifier><language>eng</language><publisher>Malden: Wiley Subscription Services, Inc</publisher><subject>Anisotropy ; Aspect ratio ; Barium ; Densification ; Dielectric properties ; Elongation ; Ethanol ; Grain growth ; microstructure ; microwave dielectric ; milling ; Q factors ; Sintering (powder metallurgy) ; Size reduction ; Slurries</subject><ispartof>International journal of applied ceramic technology, 2019-09, Vol.16 (5), p.2094-2100</ispartof><rights>2019 The American Ceramic Society</rights><rights>Copyright © 2019 American Ceramic Society</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><orcidid>0000-0001-9000-0618</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://onlinelibrary.wiley.com/doi/pdf/10.1111%2Fijac.13233$$EPDF$$P50$$Gwiley$$H</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1111%2Fijac.13233$$EHTML$$P50$$Gwiley$$H</linktohtml><link.rule.ids>314,780,784,1417,27924,27925,45574,45575</link.rule.ids></links><search><creatorcontrib>Tsao, Chung‐Ya</creatorcontrib><creatorcontrib>Tuan, Wei‐Hsing</creatorcontrib><creatorcontrib>Feng, Kuei‐Chih</creatorcontrib><title>Effect of milling on the anisotropic grain growth in a sintered Ba5Nb4O15 specimen and its effect on microwave dielectric properties</title><title>International journal of applied ceramic technology</title><description>In this study, relationships between the processing, microstructure, and properties of barium niobate (Ba5Nb4O15) are investigated. 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In addition, milling in ethanol is carried out for comparison: A lower amount of BaCO3 is formed after milling in ethanol; the extent of anisotropic grain growth is thus reduced.</description><subject>Anisotropy</subject><subject>Aspect ratio</subject><subject>Barium</subject><subject>Densification</subject><subject>Dielectric properties</subject><subject>Elongation</subject><subject>Ethanol</subject><subject>Grain growth</subject><subject>microstructure</subject><subject>microwave dielectric</subject><subject>milling</subject><subject>Q factors</subject><subject>Sintering (powder metallurgy)</subject><subject>Size reduction</subject><subject>Slurries</subject><issn>1546-542X</issn><issn>1744-7402</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2019</creationdate><recordtype>article</recordtype><recordid>eNotkE1PAjEQhhujiYhe_AVNPC_2u8sRCSqGyEUTb023nYWSZXfdLhLu_nALOIeZN_PxTPIidE_JiKZ4DBvrRpQzzi_QgGohMi0Iu0xaCpVJwb6u0U2MG0K44FwN0O-sLMH1uCnxNlRVqFe4qXG_BmzrEJu-a9rg8KqzoU652fdrnJTFMdQ9dODxk5XvhVhSiWMLLmwhTWuPQx8x_KPrhHbp1v4A9gGq1OwStE1s6PoA8RZdlbaKcPdfh-jzefYxfc0Wy5f5dLLIWsYkz6QqcsW9zsvcF0o6qV2hAbxSubSWeeLGaiyZkJaLQlrvCeOFd1qkM-JB8CF6OHPT6-8dxN5sml1Xp5eGMaWVomOm0xY9b-1DBQfTdmFru4OhxBwtNkeLzcliM3-bTE-K_wExnnKO</recordid><startdate>201909</startdate><enddate>201909</enddate><creator>Tsao, Chung‐Ya</creator><creator>Tuan, Wei‐Hsing</creator><creator>Feng, Kuei‐Chih</creator><general>Wiley Subscription Services, Inc</general><scope>7QQ</scope><scope>7SR</scope><scope>8FD</scope><scope>JG9</scope><orcidid>https://orcid.org/0000-0001-9000-0618</orcidid></search><sort><creationdate>201909</creationdate><title>Effect of milling on the anisotropic grain growth in a sintered Ba5Nb4O15 specimen and its effect on microwave dielectric properties</title><author>Tsao, Chung‐Ya ; Tuan, Wei‐Hsing ; Feng, Kuei‐Chih</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-p2253-56b863d78f8db65c57cb7eed6685aa2d0c9695245a34b5add023bdc74b860de43</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2019</creationdate><topic>Anisotropy</topic><topic>Aspect ratio</topic><topic>Barium</topic><topic>Densification</topic><topic>Dielectric properties</topic><topic>Elongation</topic><topic>Ethanol</topic><topic>Grain growth</topic><topic>microstructure</topic><topic>microwave dielectric</topic><topic>milling</topic><topic>Q factors</topic><topic>Sintering (powder metallurgy)</topic><topic>Size reduction</topic><topic>Slurries</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Tsao, Chung‐Ya</creatorcontrib><creatorcontrib>Tuan, Wei‐Hsing</creatorcontrib><creatorcontrib>Feng, Kuei‐Chih</creatorcontrib><collection>Ceramic Abstracts</collection><collection>Engineered Materials Abstracts</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><jtitle>International journal of applied ceramic technology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Tsao, Chung‐Ya</au><au>Tuan, Wei‐Hsing</au><au>Feng, Kuei‐Chih</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Effect of milling on the anisotropic grain growth in a sintered Ba5Nb4O15 specimen and its effect on microwave dielectric properties</atitle><jtitle>International journal of applied ceramic technology</jtitle><date>2019-09</date><risdate>2019</risdate><volume>16</volume><issue>5</issue><spage>2094</spage><epage>2100</epage><pages>2094-2100</pages><issn>1546-542X</issn><eissn>1744-7402</eissn><abstract>In this study, relationships between the processing, microstructure, and properties of barium niobate (Ba5Nb4O15) are investigated. The milling of a Ba5Nb4O15 powder in water is effective with respect to size reduction. However, after milling in water, BaCO3 is formed within the slurry. With the increase in the amount of BaCO3 formed, the aspect ratio of the elongated Ba5Nb4O15 grains increases. The formation of the elongated Ba5Nb4O15 grains prohibits the densification. Hence, the microwave dielectric properties, including permittivity and quality factor, are poor because of the low density. In addition, milling in ethanol is carried out for comparison: A lower amount of BaCO3 is formed after milling in ethanol; the extent of anisotropic grain growth is thus reduced.</abstract><cop>Malden</cop><pub>Wiley Subscription Services, Inc</pub><doi>10.1111/ijac.13233</doi><tpages>7</tpages><orcidid>https://orcid.org/0000-0001-9000-0618</orcidid></addata></record> |
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| subjects | Anisotropy Aspect ratio Barium Densification Dielectric properties Elongation Ethanol Grain growth microstructure microwave dielectric milling Q factors Sintering (powder metallurgy) Size reduction Slurries |
| title | Effect of milling on the anisotropic grain growth in a sintered Ba5Nb4O15 specimen and its effect on microwave dielectric properties |
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