Effects of h-BN additive on the microstructure and mechanical properties of AlN-based machinable ceramics
The effect of hexagonal boron nitride (h-BN) content on microstructure, mechanical properties, R-curve behavior and machinability of aluminum nitride (AlN) ceramics was investigated. The relative density of sintered compact decreased with increasing h-BN content. The four-point flexural strength als...
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| Veröffentlicht in: | Materials science & engineering. A, Structural materials : properties, microstructure and processing Structural materials : properties, microstructure and processing, 2006-02, Vol.418 (1), p.61-67 |
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| container_issue | 1 |
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| container_title | Materials science & engineering. A, Structural materials : properties, microstructure and processing |
| container_volume | 418 |
| creator | Cho, Won-Seung Cho, Myeong-Woo Lee, Jae-Hyung Munir, Z.A. |
| description | The effect of hexagonal boron nitride (h-BN) content on microstructure, mechanical properties,
R-curve behavior and machinability of aluminum nitride (AlN) ceramics was investigated. The relative density of sintered compact decreased with increasing h-BN content. The four-point flexural strength also decreased with increasing h-BN content, mainly due to the much lower Young's modulus of BN compared to AlN. AlN–h-BN composites showed a slowly rising
R-curve behavior owing to the presence of h-BN platelets, which increased the crack bridging and deflection. During end-milling processes, measured feed and thrust forces decreased with increasing h-BN content, demonstrating an excellent machinability of the composites. |
| doi_str_mv | 10.1016/j.msea.2005.11.033 |
| format | Article |
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R-curve behavior and machinability of aluminum nitride (AlN) ceramics was investigated. The relative density of sintered compact decreased with increasing h-BN content. The four-point flexural strength also decreased with increasing h-BN content, mainly due to the much lower Young's modulus of BN compared to AlN. AlN–h-BN composites showed a slowly rising
R-curve behavior owing to the presence of h-BN platelets, which increased the crack bridging and deflection. During end-milling processes, measured feed and thrust forces decreased with increasing h-BN content, demonstrating an excellent machinability of the composites.</description><identifier>ISSN: 0921-5093</identifier><identifier>EISSN: 1873-4936</identifier><identifier>DOI: 10.1016/j.msea.2005.11.033</identifier><language>eng</language><publisher>Amsterdam: Elsevier B.V</publisher><subject>AlN ; Condensed matter: structure, mechanical and thermal properties ; Exact sciences and technology ; Fatigue, brittleness, fracture, and cracks ; h-BN ; Machinable ceramics ; Mechanical and acoustical properties of condensed matter ; Mechanical properties of solids ; Microstructure ; Physics ; R-curve</subject><ispartof>Materials science & engineering. A, Structural materials : properties, microstructure and processing, 2006-02, Vol.418 (1), p.61-67</ispartof><rights>2005 Elsevier B.V.</rights><rights>2006 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c489t-86d997c310b760c320233aab2018a5981dd79db7b7b43b6c87a5a8abfed7fdaa3</citedby><cites>FETCH-LOGICAL-c489t-86d997c310b760c320233aab2018a5981dd79db7b7b43b6c87a5a8abfed7fdaa3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.msea.2005.11.033$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,780,784,3550,27924,27925,45995</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=17568233$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Cho, Won-Seung</creatorcontrib><creatorcontrib>Cho, Myeong-Woo</creatorcontrib><creatorcontrib>Lee, Jae-Hyung</creatorcontrib><creatorcontrib>Munir, Z.A.</creatorcontrib><title>Effects of h-BN additive on the microstructure and mechanical properties of AlN-based machinable ceramics</title><title>Materials science & engineering. A, Structural materials : properties, microstructure and processing</title><description>The effect of hexagonal boron nitride (h-BN) content on microstructure, mechanical properties,
R-curve behavior and machinability of aluminum nitride (AlN) ceramics was investigated. The relative density of sintered compact decreased with increasing h-BN content. The four-point flexural strength also decreased with increasing h-BN content, mainly due to the much lower Young's modulus of BN compared to AlN. AlN–h-BN composites showed a slowly rising
R-curve behavior owing to the presence of h-BN platelets, which increased the crack bridging and deflection. During end-milling processes, measured feed and thrust forces decreased with increasing h-BN content, demonstrating an excellent machinability of the composites.</description><subject>AlN</subject><subject>Condensed matter: structure, mechanical and thermal properties</subject><subject>Exact sciences and technology</subject><subject>Fatigue, brittleness, fracture, and cracks</subject><subject>h-BN</subject><subject>Machinable ceramics</subject><subject>Mechanical and acoustical properties of condensed matter</subject><subject>Mechanical properties of solids</subject><subject>Microstructure</subject><subject>Physics</subject><subject>R-curve</subject><issn>0921-5093</issn><issn>1873-4936</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2006</creationdate><recordtype>article</recordtype><recordid>eNqNkT1rHDEQhkWIIRc7fyCVmqTb9Uha7UqQxjHOBxinsWsxK81yOvbjIu0Z8u-t8xnSJUbFNM-8I96HsY8CagGivdzVUyasJYCuhahBqTdsI0ynqsaq9i3bgJWi0mDVO_Y-5x0AiAb0hsWbYSC_Zr4MfFt9veMYQlzjI_Fl5uuW-BR9WvKaDn49JOI4Bz6R3-IcPY58n5Y9pTXSc8DVeFf1mKkg6Ldxxn4k7ilhCckX7GzAMdOHl3nOHr7d3F__qG5_ff95fXVb-cbYtTJtsLbzSkDfteCVBKkUYi9BGNTWiBA6G_quvEb1rTcdajTYDxS6ISCqc_b5lFv-9vtAeXVTzJ7GEWdaDtlJK7UySr4GbJS2-v-gMaCtVQWUJ_BYWU40uH2KE6Y_ToA7enI7d_Tkjp6cEK54KkufXtIxl0qHhLOP-e9mp1sjn7kvJ45KeY-Rkss-0uwpxFQMurDEf515As8PqVg</recordid><startdate>20060225</startdate><enddate>20060225</enddate><creator>Cho, Won-Seung</creator><creator>Cho, Myeong-Woo</creator><creator>Lee, Jae-Hyung</creator><creator>Munir, Z.A.</creator><general>Elsevier B.V</general><general>Elsevier</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7QQ</scope><scope>7SR</scope><scope>8FD</scope><scope>JG9</scope><scope>7TB</scope><scope>FR3</scope><scope>7QF</scope></search><sort><creationdate>20060225</creationdate><title>Effects of h-BN additive on the microstructure and mechanical properties of AlN-based machinable ceramics</title><author>Cho, Won-Seung ; Cho, Myeong-Woo ; Lee, Jae-Hyung ; Munir, Z.A.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c489t-86d997c310b760c320233aab2018a5981dd79db7b7b43b6c87a5a8abfed7fdaa3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2006</creationdate><topic>AlN</topic><topic>Condensed matter: structure, mechanical and thermal properties</topic><topic>Exact sciences and technology</topic><topic>Fatigue, brittleness, fracture, and cracks</topic><topic>h-BN</topic><topic>Machinable ceramics</topic><topic>Mechanical and acoustical properties of condensed matter</topic><topic>Mechanical properties of solids</topic><topic>Microstructure</topic><topic>Physics</topic><topic>R-curve</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Cho, Won-Seung</creatorcontrib><creatorcontrib>Cho, Myeong-Woo</creatorcontrib><creatorcontrib>Lee, Jae-Hyung</creatorcontrib><creatorcontrib>Munir, Z.A.</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Ceramic Abstracts</collection><collection>Engineered Materials Abstracts</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><collection>Mechanical & Transportation Engineering Abstracts</collection><collection>Engineering Research Database</collection><collection>Aluminium Industry Abstracts</collection><jtitle>Materials science & engineering. A, Structural materials : properties, microstructure and processing</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Cho, Won-Seung</au><au>Cho, Myeong-Woo</au><au>Lee, Jae-Hyung</au><au>Munir, Z.A.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Effects of h-BN additive on the microstructure and mechanical properties of AlN-based machinable ceramics</atitle><jtitle>Materials science & engineering. A, Structural materials : properties, microstructure and processing</jtitle><date>2006-02-25</date><risdate>2006</risdate><volume>418</volume><issue>1</issue><spage>61</spage><epage>67</epage><pages>61-67</pages><issn>0921-5093</issn><eissn>1873-4936</eissn><abstract>The effect of hexagonal boron nitride (h-BN) content on microstructure, mechanical properties,
R-curve behavior and machinability of aluminum nitride (AlN) ceramics was investigated. The relative density of sintered compact decreased with increasing h-BN content. The four-point flexural strength also decreased with increasing h-BN content, mainly due to the much lower Young's modulus of BN compared to AlN. AlN–h-BN composites showed a slowly rising
R-curve behavior owing to the presence of h-BN platelets, which increased the crack bridging and deflection. During end-milling processes, measured feed and thrust forces decreased with increasing h-BN content, demonstrating an excellent machinability of the composites.</abstract><cop>Amsterdam</cop><pub>Elsevier B.V</pub><doi>10.1016/j.msea.2005.11.033</doi><tpages>7</tpages></addata></record> |
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| ispartof | Materials science & engineering. A, Structural materials : properties, microstructure and processing, 2006-02, Vol.418 (1), p.61-67 |
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| language | eng |
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| source | Access via ScienceDirect (Elsevier) |
| subjects | AlN Condensed matter: structure, mechanical and thermal properties Exact sciences and technology Fatigue, brittleness, fracture, and cracks h-BN Machinable ceramics Mechanical and acoustical properties of condensed matter Mechanical properties of solids Microstructure Physics R-curve |
| title | Effects of h-BN additive on the microstructure and mechanical properties of AlN-based machinable ceramics |
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