Comparison of the Microwave and Conventional Sintering of Alumina: Effect of MgO Doping and Particle Size
The effects of MgO doping and specific surface area of powder on microwave sintering behavior of α‐Al2O3 were investigated. A comparative study was simultaneously achieved in conventional and microwave heating with an identical thermal process. The experimental results show that both MgO and particl...
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| Veröffentlicht in: | Journal of the American Ceramic Society 2013-06, Vol.96 (6), p.1732-1737 |
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| container_title | Journal of the American Ceramic Society |
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| creator | Zuo, Fei Carry, Claude Saunier, Sébastien Marinel, Sylvain Goeuriot, Dominique |
| description | The effects of MgO doping and specific surface area of powder on microwave sintering behavior of α‐Al2O3 were investigated. A comparative study was simultaneously achieved in conventional and microwave heating with an identical thermal process. The experimental results show that both MgO and particle size have significant influence on microwave enhancement in the densification of the alumina samples. It is found that an amount of MgO surrounding the solubility limit in Al2O3 or leading to second phase precipitation of MgAl2O4 spinel induces more significant microwave enhancement. A significant microwave gain in densification is also observed while powder has a high specific surface area. These results indicate that the enhancements during microwave sintering processes are associated with the formation of lattice defect and with the increase in concentration of grain‐boundary region. |
| doi_str_mv | 10.1111/jace.12320 |
| format | Article |
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A comparative study was simultaneously achieved in conventional and microwave heating with an identical thermal process. The experimental results show that both MgO and particle size have significant influence on microwave enhancement in the densification of the alumina samples. It is found that an amount of MgO surrounding the solubility limit in Al2O3 or leading to second phase precipitation of MgAl2O4 spinel induces more significant microwave enhancement. A significant microwave gain in densification is also observed while powder has a high specific surface area. 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Am. Ceram. Soc</addtitle><description>The effects of MgO doping and specific surface area of powder on microwave sintering behavior of α‐Al2O3 were investigated. A comparative study was simultaneously achieved in conventional and microwave heating with an identical thermal process. The experimental results show that both MgO and particle size have significant influence on microwave enhancement in the densification of the alumina samples. It is found that an amount of MgO surrounding the solubility limit in Al2O3 or leading to second phase precipitation of MgAl2O4 spinel induces more significant microwave enhancement. A significant microwave gain in densification is also observed while powder has a high specific surface area. These results indicate that the enhancements during microwave sintering processes are associated with the formation of lattice defect and with the increase in concentration of grain‐boundary region.</description><subject>Alumina</subject><subject>Aluminum oxide</subject><subject>Ceramic sintering</subject><subject>Densification</subject><subject>Doping</subject><subject>Engineering Sciences</subject><subject>Grain boundaries</subject><subject>Magnesium oxide</subject><subject>Materials</subject><subject>Microwave heating</subject><subject>Microwave sintering</subject><subject>Microwaves</subject><subject>Particle size</subject><subject>Specific surface</subject><issn>0002-7820</issn><issn>1551-2916</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2013</creationdate><recordtype>article</recordtype><recordid>eNqN0UFv0zAYBmALgUQZXPgFkbggpAx_dhI73KpQWqDbkABxtFzny-aS2MVOO8avx6EwJA6AL5at57X0-SXkMdBTSOv5Vhs8BcYZvUNmUJaQsxqqu2RGKWW5kIzeJw9i3KYj1LKYEdv4YaeDjd5lvsvGK8zOrAn-Wh8w067NGu8O6Ebrne6z99aNGKy7nOy83w_W6RfZouvQjNPV2eVF9tLvJjBl3-kwWtNjyn3Dh-Rep_uIj37uJ-Tjq8WHZpWvL5avm_k6NyVQmmvDcSNaUwhpgImaSVPSDjddCxSRtbzYcF0bIdoaTJqQS2Qgik3RccYrJvgJeXZ890r3ahfsoMON8tqq1XytcIioKNCKi4odIOGnR7wL_sse46gGGw32vXbo91FBVTPOJZPy37QopOCUS_EfFERiUPBEn_xBt34f0l8nxStBBSsl_z1TaibGgN3tYEDVVLyailc_ik8Yjvja9njzF6nezJvFr0x-zNg44tfbjA6fVSW4KNWn86Vi4q1YncNS1fw7s2y7bA</recordid><startdate>201306</startdate><enddate>201306</enddate><creator>Zuo, Fei</creator><creator>Carry, Claude</creator><creator>Saunier, Sébastien</creator><creator>Marinel, Sylvain</creator><creator>Goeuriot, Dominique</creator><general>Blackwell Publishing Ltd</general><general>Wiley Subscription Services, Inc</general><general>Wiley</general><scope>BSCLL</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7QQ</scope><scope>7SR</scope><scope>8FD</scope><scope>JG9</scope><scope>7QF</scope><scope>7U5</scope><scope>8BQ</scope><scope>L7M</scope><scope>1XC</scope><orcidid>https://orcid.org/0000-0001-9951-7832</orcidid><orcidid>https://orcid.org/0000-0003-2169-469X</orcidid></search><sort><creationdate>201306</creationdate><title>Comparison of the Microwave and Conventional Sintering of Alumina: Effect of MgO Doping and Particle Size</title><author>Zuo, Fei ; Carry, Claude ; Saunier, Sébastien ; Marinel, Sylvain ; Goeuriot, Dominique</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c5100-ac3eb7dc478c127928c50febfd10ee2d34b3a9c77d91c15538e2174b4f3236273</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2013</creationdate><topic>Alumina</topic><topic>Aluminum oxide</topic><topic>Ceramic sintering</topic><topic>Densification</topic><topic>Doping</topic><topic>Engineering Sciences</topic><topic>Grain boundaries</topic><topic>Magnesium oxide</topic><topic>Materials</topic><topic>Microwave heating</topic><topic>Microwave sintering</topic><topic>Microwaves</topic><topic>Particle size</topic><topic>Specific surface</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Zuo, Fei</creatorcontrib><creatorcontrib>Carry, Claude</creatorcontrib><creatorcontrib>Saunier, Sébastien</creatorcontrib><creatorcontrib>Marinel, Sylvain</creatorcontrib><creatorcontrib>Goeuriot, Dominique</creatorcontrib><collection>Istex</collection><collection>CrossRef</collection><collection>Ceramic Abstracts</collection><collection>Engineered Materials Abstracts</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><collection>Aluminium Industry Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>METADEX</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>Hyper Article en Ligne (HAL)</collection><jtitle>Journal of the American Ceramic Society</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Zuo, Fei</au><au>Carry, Claude</au><au>Saunier, Sébastien</au><au>Marinel, Sylvain</au><au>Goeuriot, Dominique</au><au>Bordia, R.</au><au>Bordia, R.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Comparison of the Microwave and Conventional Sintering of Alumina: Effect of MgO Doping and Particle Size</atitle><jtitle>Journal of the American Ceramic Society</jtitle><addtitle>J. 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| source | Wiley Online Library All Journals |
| subjects | Alumina Aluminum oxide Ceramic sintering Densification Doping Engineering Sciences Grain boundaries Magnesium oxide Materials Microwave heating Microwave sintering Microwaves Particle size Specific surface |
| title | Comparison of the Microwave and Conventional Sintering of Alumina: Effect of MgO Doping and Particle Size |
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