Mechanical Properties of La sub(2)O sub(3)-Al sub(2)O sub(3) Ceramics Prepared by Microwave Sintering
The influence of La sub(2)0 sub(3) on the phase and microstructure evaluation and mechanical properties of La sub(2)O sub(3)-Al sub(2)O sub(3) ceramics sintered with 2.45 GHz microwave energy was investigated. The results showed that La sub(2)O sub(3) could density the pure alumina with a lower sint...
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| Veröffentlicht in: | Key engineering materials 2012-07, Vol.519, p.265-268 |
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| creator | Ai, Yun Long He, Fei Liang, Bing Liang He, Wen Chen, Wei Hua |
| description | The influence of La sub(2)0 sub(3) on the phase and microstructure evaluation and mechanical properties of La sub(2)O sub(3)-Al sub(2)O sub(3) ceramics sintered with 2.45 GHz microwave energy was investigated. The results showed that La sub(2)O sub(3) could density the pure alumina with a lower sintering temperature and a short sintering time. La sub(2)O sub(3) reacted with Al sub(2)O sub(3) to form LaAl11O18 completely and the amount of LaAlllOlS increased with the increasing content of La sub(2)0 sub(3), distributing at the Al sub(2)O sub(3) grain boundaries. The specimen doped with 10 vol.% and 15 vol.% La sub(2)O sub(3) sintered at 1500 [degrees]C exhibited plenty of columnar grains with draw ratio about 1:4. The existence of columnar grains enhanced the micro hard ness and fracture toughness of La sub(2)O sub(3)-Al sub(2)O sub(3) ceramics. |
| doi_str_mv | 10.4028/www.scientific.net/KEM.519.265 |
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The results showed that La sub(2)O sub(3) could density the pure alumina with a lower sintering temperature and a short sintering time. La sub(2)O sub(3) reacted with Al sub(2)O sub(3) to form LaAl11O18 completely and the amount of LaAlllOlS increased with the increasing content of La sub(2)0 sub(3), distributing at the Al sub(2)O sub(3) grain boundaries. The specimen doped with 10 vol.% and 15 vol.% La sub(2)O sub(3) sintered at 1500 [degrees]C exhibited plenty of columnar grains with draw ratio about 1:4. The existence of columnar grains enhanced the micro hard ness and fracture toughness of La sub(2)O sub(3)-Al sub(2)O sub(3) ceramics.</description><identifier>ISSN: 1013-9826</identifier><identifier>DOI: 10.4028/www.scientific.net/KEM.519.265</identifier><language>eng</language><subject>Aluminum oxide ; Ceramics ; Density ; Grain boundaries ; Grains ; Mechanical properties ; Microwaves ; Sintering</subject><ispartof>Key engineering materials, 2012-07, Vol.519, p.265-268</ispartof><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,776,780,27903,27904</link.rule.ids></links><search><creatorcontrib>Ai, Yun Long</creatorcontrib><creatorcontrib>He, Fei</creatorcontrib><creatorcontrib>Liang, Bing Liang</creatorcontrib><creatorcontrib>He, Wen</creatorcontrib><creatorcontrib>Chen, Wei Hua</creatorcontrib><title>Mechanical Properties of La sub(2)O sub(3)-Al sub(2)O sub(3) Ceramics Prepared by Microwave Sintering</title><title>Key engineering materials</title><description>The influence of La sub(2)0 sub(3) on the phase and microstructure evaluation and mechanical properties of La sub(2)O sub(3)-Al sub(2)O sub(3) ceramics sintered with 2.45 GHz microwave energy was investigated. The results showed that La sub(2)O sub(3) could density the pure alumina with a lower sintering temperature and a short sintering time. La sub(2)O sub(3) reacted with Al sub(2)O sub(3) to form LaAl11O18 completely and the amount of LaAlllOlS increased with the increasing content of La sub(2)0 sub(3), distributing at the Al sub(2)O sub(3) grain boundaries. The specimen doped with 10 vol.% and 15 vol.% La sub(2)O sub(3) sintered at 1500 [degrees]C exhibited plenty of columnar grains with draw ratio about 1:4. The existence of columnar grains enhanced the micro hard ness and fracture toughness of La sub(2)O sub(3)-Al sub(2)O sub(3) ceramics.</description><subject>Aluminum oxide</subject><subject>Ceramics</subject><subject>Density</subject><subject>Grain boundaries</subject><subject>Grains</subject><subject>Mechanical properties</subject><subject>Microwaves</subject><subject>Sintering</subject><issn>1013-9826</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2012</creationdate><recordtype>article</recordtype><recordid>eNqNjstOwzAURL0AiVL4B69Qu0h67cSPLKuoPESjIpV95Tg3YJQmwU6I-HsqYMWK1ZFGc0ZDyA2DOAWuV9M0xcE6bAdXOxu3OKweN0UsWBZzKc7IjAFLokxzeUEuQ3gDSJhmYkawQPtqWmdNQ59816MfHAba1XRraBjLBV_uvpkso3XzJ6E5enN0NpxU7I3HipaftHDWd5P5QLp37YDetS9X5Lw2TcDrX87J_nbznN9H293dQ77eRr2UEBkFqlRYWyG0qUFWINNMsiytMq04A1SVUIAMSgOWaWtQcqkrxkSNsoRkThY_q73v3kcMw-HogsWmMS12YzgwqTSABPGfKgdIk9OR5Av9smj3</recordid><startdate>20120701</startdate><enddate>20120701</enddate><creator>Ai, Yun Long</creator><creator>He, Fei</creator><creator>Liang, Bing Liang</creator><creator>He, Wen</creator><creator>Chen, Wei Hua</creator><scope>7QF</scope><scope>7QQ</scope><scope>7SR</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope></search><sort><creationdate>20120701</creationdate><title>Mechanical Properties of La sub(2)O sub(3)-Al sub(2)O sub(3) Ceramics Prepared by Microwave Sintering</title><author>Ai, Yun Long ; He, Fei ; Liang, Bing Liang ; He, Wen ; Chen, Wei Hua</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-p660-a707b7efc558af06d06496194d987210e7d570e10ba0c18cae6268d115fe6b03</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2012</creationdate><topic>Aluminum oxide</topic><topic>Ceramics</topic><topic>Density</topic><topic>Grain boundaries</topic><topic>Grains</topic><topic>Mechanical properties</topic><topic>Microwaves</topic><topic>Sintering</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Ai, Yun Long</creatorcontrib><creatorcontrib>He, Fei</creatorcontrib><creatorcontrib>Liang, Bing Liang</creatorcontrib><creatorcontrib>He, Wen</creatorcontrib><creatorcontrib>Chen, Wei Hua</creatorcontrib><collection>Aluminium Industry Abstracts</collection><collection>Ceramic Abstracts</collection><collection>Engineered Materials Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><jtitle>Key engineering materials</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Ai, Yun Long</au><au>He, Fei</au><au>Liang, Bing Liang</au><au>He, Wen</au><au>Chen, Wei Hua</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Mechanical Properties of La sub(2)O sub(3)-Al sub(2)O sub(3) Ceramics Prepared by Microwave Sintering</atitle><jtitle>Key engineering materials</jtitle><date>2012-07-01</date><risdate>2012</risdate><volume>519</volume><spage>265</spage><epage>268</epage><pages>265-268</pages><issn>1013-9826</issn><abstract>The influence of La sub(2)0 sub(3) on the phase and microstructure evaluation and mechanical properties of La sub(2)O sub(3)-Al sub(2)O sub(3) ceramics sintered with 2.45 GHz microwave energy was investigated. The results showed that La sub(2)O sub(3) could density the pure alumina with a lower sintering temperature and a short sintering time. La sub(2)O sub(3) reacted with Al sub(2)O sub(3) to form LaAl11O18 completely and the amount of LaAlllOlS increased with the increasing content of La sub(2)0 sub(3), distributing at the Al sub(2)O sub(3) grain boundaries. The specimen doped with 10 vol.% and 15 vol.% La sub(2)O sub(3) sintered at 1500 [degrees]C exhibited plenty of columnar grains with draw ratio about 1:4. The existence of columnar grains enhanced the micro hard ness and fracture toughness of La sub(2)O sub(3)-Al sub(2)O sub(3) ceramics.</abstract><doi>10.4028/www.scientific.net/KEM.519.265</doi><tpages>4</tpages></addata></record> |
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| subjects | Aluminum oxide Ceramics Density Grain boundaries Grains Mechanical properties Microwaves Sintering |
| title | Mechanical Properties of La sub(2)O sub(3)-Al sub(2)O sub(3) Ceramics Prepared by Microwave Sintering |
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