Mechanical properties and machinability of AlN-hBN ceramics prepared by spark plasma sintering
AlN-hBN ceramic composites with 3 mass% CaF2 were fabricated by spark plasma sintering at 1800°C for 10 min. The effects of hBN content on mechanical properties, microstructure, and machinability of AlN-hBN composites were investigated. With increasing hBN content, relative density, flexural strengt...
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| Veröffentlicht in: | Journal of the Ceramic Society of Japan 2009, Vol.117(1369), pp.1028-1031 |
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| container_end_page | 1031 |
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| container_issue | 1369 |
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| container_title | Journal of the Ceramic Society of Japan |
| container_volume | 117 |
| creator | XU, Jingwen LEE, Ki-Ju BECK, Si-Young HA, Seok-Jae SHIN, Bong-Cheol CHO, Myeong-Woo CHO, Won-Seung |
| description | AlN-hBN ceramic composites with 3 mass% CaF2 were fabricated by spark plasma sintering at 1800°C for 10 min. The effects of hBN content on mechanical properties, microstructure, and machinability of AlN-hBN composites were investigated. With increasing hBN content, relative density, flexural strength, and Young's modulus decreased, whereas fracture toughness increased slightly. Vickers' indentation cracks are largely deflected near hBN platelets, implying a weak interfacial bond between the AlN and the hBN. The fracture surfaces of AlN-hBN composites showed a higher tendency of intergranular fracture than monolithic AlN. During end-milling processes, the cutting resistance decreased with hBN content, demonstrating the machinability of AlN ceramic can be improved significantly by the addition of hBN. |
| doi_str_mv | 10.2109/jcersj2.117.1028 |
| format | Article |
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The effects of hBN content on mechanical properties, microstructure, and machinability of AlN-hBN composites were investigated. With increasing hBN content, relative density, flexural strength, and Young's modulus decreased, whereas fracture toughness increased slightly. Vickers' indentation cracks are largely deflected near hBN platelets, implying a weak interfacial bond between the AlN and the hBN. The fracture surfaces of AlN-hBN composites showed a higher tendency of intergranular fracture than monolithic AlN. During end-milling processes, the cutting resistance decreased with hBN content, demonstrating the machinability of AlN ceramic can be improved significantly by the addition of hBN.</description><identifier>ISSN: 1882-0743</identifier><identifier>EISSN: 1348-6535</identifier><identifier>DOI: 10.2109/jcersj2.117.1028</identifier><language>eng</language><publisher>Tokyo: The Ceramic Society of Japan</publisher><subject>AlN-hBN ; Machinable ceramics ; Mechanical properties ; Microstructure ; Spark plasma sintering</subject><ispartof>Journal of the Ceramic Society of Japan, 2009, Vol.117(1369), pp.1028-1031</ispartof><rights>2009 The Ceramic Society of Japan</rights><rights>Copyright Japan Science and Technology Agency 2009</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c509t-d740c2d44611d08e8066fdf3cc5c23b357ed52200d831c16fab2e3d52fcd7be23</citedby><cites>FETCH-LOGICAL-c509t-d740c2d44611d08e8066fdf3cc5c23b357ed52200d831c16fab2e3d52fcd7be23</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,1883,4024,27923,27924,27925</link.rule.ids></links><search><creatorcontrib>XU, Jingwen</creatorcontrib><creatorcontrib>LEE, Ki-Ju</creatorcontrib><creatorcontrib>BECK, Si-Young</creatorcontrib><creatorcontrib>HA, Seok-Jae</creatorcontrib><creatorcontrib>SHIN, Bong-Cheol</creatorcontrib><creatorcontrib>CHO, Myeong-Woo</creatorcontrib><creatorcontrib>CHO, Won-Seung</creatorcontrib><title>Mechanical properties and machinability of AlN-hBN ceramics prepared by spark plasma sintering</title><title>Journal of the Ceramic Society of Japan</title><addtitle>J. Ceram. Soc. Japan</addtitle><description>AlN-hBN ceramic composites with 3 mass% CaF2 were fabricated by spark plasma sintering at 1800°C for 10 min. The effects of hBN content on mechanical properties, microstructure, and machinability of AlN-hBN composites were investigated. With increasing hBN content, relative density, flexural strength, and Young's modulus decreased, whereas fracture toughness increased slightly. Vickers' indentation cracks are largely deflected near hBN platelets, implying a weak interfacial bond between the AlN and the hBN. The fracture surfaces of AlN-hBN composites showed a higher tendency of intergranular fracture than monolithic AlN. During end-milling processes, the cutting resistance decreased with hBN content, demonstrating the machinability of AlN ceramic can be improved significantly by the addition of hBN.</description><subject>AlN-hBN</subject><subject>Machinable ceramics</subject><subject>Mechanical properties</subject><subject>Microstructure</subject><subject>Spark plasma sintering</subject><issn>1882-0743</issn><issn>1348-6535</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2009</creationdate><recordtype>article</recordtype><recordid>eNpVkDtPwzAURiMEEqWwM1piTvErjjOWipdUygIrlmPftA55YadD_z2uWlUw-ZP1nXt1T5LcEjyjBBf3tQEfajojJJ8RTOVZMiGMy1RkLDuPWUqa4pyzy-QqhBpjQTmTk-TrDcxGd87oBg2-H8CPDgLSnUWtNhvX6dI1btyhvkLzZpVuHlYobtKtMyECMGgPFpU7FGL6RkOjQ6tRcN0I3nXr6-Si0k2Am-M7TT6fHj8WL-ny_fl1MV-mJsPFmNqcY0Mt54IQiyVILERlK2ZMZigrWZaDzSjF2EpGDBGVLimw-FUZm5dA2TS5O8yNN_xsIYyq7re-iysV4TwrOM-liC18aBnfh-ChUoN3rfY7RbDaW1RHiypaVHuLEVkekDqMeg0nQEdPpoH_ABPFnxDxUy069go69gto-IHj</recordid><startdate>2009</startdate><enddate>2009</enddate><creator>XU, Jingwen</creator><creator>LEE, Ki-Ju</creator><creator>BECK, Si-Young</creator><creator>HA, Seok-Jae</creator><creator>SHIN, Bong-Cheol</creator><creator>CHO, Myeong-Woo</creator><creator>CHO, Won-Seung</creator><general>The Ceramic Society of Japan</general><general>Japan Science and Technology Agency</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7QQ</scope><scope>7SR</scope><scope>8FD</scope><scope>JG9</scope></search><sort><creationdate>2009</creationdate><title>Mechanical properties and machinability of AlN-hBN ceramics prepared by spark plasma sintering</title><author>XU, Jingwen ; LEE, Ki-Ju ; BECK, Si-Young ; HA, Seok-Jae ; SHIN, Bong-Cheol ; CHO, Myeong-Woo ; CHO, Won-Seung</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c509t-d740c2d44611d08e8066fdf3cc5c23b357ed52200d831c16fab2e3d52fcd7be23</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2009</creationdate><topic>AlN-hBN</topic><topic>Machinable ceramics</topic><topic>Mechanical properties</topic><topic>Microstructure</topic><topic>Spark plasma sintering</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>XU, Jingwen</creatorcontrib><creatorcontrib>LEE, Ki-Ju</creatorcontrib><creatorcontrib>BECK, Si-Young</creatorcontrib><creatorcontrib>HA, Seok-Jae</creatorcontrib><creatorcontrib>SHIN, Bong-Cheol</creatorcontrib><creatorcontrib>CHO, Myeong-Woo</creatorcontrib><creatorcontrib>CHO, Won-Seung</creatorcontrib><collection>CrossRef</collection><collection>Ceramic Abstracts</collection><collection>Engineered Materials Abstracts</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><jtitle>Journal of the Ceramic Society of Japan</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>XU, Jingwen</au><au>LEE, Ki-Ju</au><au>BECK, Si-Young</au><au>HA, Seok-Jae</au><au>SHIN, Bong-Cheol</au><au>CHO, Myeong-Woo</au><au>CHO, Won-Seung</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Mechanical properties and machinability of AlN-hBN ceramics prepared by spark plasma sintering</atitle><jtitle>Journal of the Ceramic Society of Japan</jtitle><addtitle>J. Ceram. Soc. Japan</addtitle><date>2009</date><risdate>2009</risdate><volume>117</volume><issue>1369</issue><spage>1028</spage><epage>1031</epage><pages>1028-1031</pages><issn>1882-0743</issn><eissn>1348-6535</eissn><abstract>AlN-hBN ceramic composites with 3 mass% CaF2 were fabricated by spark plasma sintering at 1800°C for 10 min. The effects of hBN content on mechanical properties, microstructure, and machinability of AlN-hBN composites were investigated. With increasing hBN content, relative density, flexural strength, and Young's modulus decreased, whereas fracture toughness increased slightly. Vickers' indentation cracks are largely deflected near hBN platelets, implying a weak interfacial bond between the AlN and the hBN. The fracture surfaces of AlN-hBN composites showed a higher tendency of intergranular fracture than monolithic AlN. During end-milling processes, the cutting resistance decreased with hBN content, demonstrating the machinability of AlN ceramic can be improved significantly by the addition of hBN.</abstract><cop>Tokyo</cop><pub>The Ceramic Society of Japan</pub><doi>10.2109/jcersj2.117.1028</doi><tpages>4</tpages><oa>free_for_read</oa></addata></record> |
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| language | eng |
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| source | J-STAGE Free |
| subjects | AlN-hBN Machinable ceramics Mechanical properties Microstructure Spark plasma sintering |
| title | Mechanical properties and machinability of AlN-hBN ceramics prepared by spark plasma sintering |
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