Fractographic principles applied to Y-TZP mechanical behavior analysis
The purpose of this study was to evaluate the use of fractography principles to determine the fracture toughness of Y-TZP dental ceramic in which KIc was measured fractographically using controlled-flaw beam bending techniques and to correlate the flaw distribution with the mechanical properties. Th...
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| Veröffentlicht in: | Journal of the mechanical behavior of biomedical materials 2016-04, Vol.57, p.215-223 |
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| creator | Ramos, Carla Müller Cesar, Paulo Francisco Bonfante, Estevam Augusto Rubo, José Henrique Wang, Linda Borges, Ana Flávia Sanches |
| description | The purpose of this study was to evaluate the use of fractography principles to determine the fracture toughness of Y-TZP dental ceramic in which KIc was measured fractographically using controlled-flaw beam bending techniques and to correlate the flaw distribution with the mechanical properties. The Y-TZP blocks studied were: Zirconia Zirklein (ZZ); Zirconcad (ZCA); IPS e.max ZirCad (ZMAX); and In Ceram YZ (ZYZ). Samples were prepared (16mm×4mm×2mm) according to ISO 6872 specifications and subjected to three-point bending at a crosshead speed of 0.5mm/min. Weibull probability curves (95% confidence bounds) were calculated and a contour plot with the Weibull modulus (m) versus characteristic strength (σ0) was used to examine the differences among groups. The fractured surface of each specimen was inspected in a scanning electron microscope (SEM) for qualitative and quantitative fractographic analysis. The critical defect size (c) and fracture toughness (KIc) were estimated. The fractured surfaces of the samples from all groups showed similar fractographic characteristics, except ZCA showed pores and defects. Fracture toughness and the flexural strength values were not different among the groups except for ZCA. The characteristic strength (p |
| doi_str_mv | 10.1016/j.jmbbm.2015.12.006 |
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The Y-TZP blocks studied were: Zirconia Zirklein (ZZ); Zirconcad (ZCA); IPS e.max ZirCad (ZMAX); and In Ceram YZ (ZYZ). Samples were prepared (16mm×4mm×2mm) according to ISO 6872 specifications and subjected to three-point bending at a crosshead speed of 0.5mm/min. Weibull probability curves (95% confidence bounds) were calculated and a contour plot with the Weibull modulus (m) versus characteristic strength (σ0) was used to examine the differences among groups. The fractured surface of each specimen was inspected in a scanning electron microscope (SEM) for qualitative and quantitative fractographic analysis. The critical defect size (c) and fracture toughness (KIc) were estimated. The fractured surfaces of the samples from all groups showed similar fractographic characteristics, except ZCA showed pores and defects. Fracture toughness and the flexural strength values were not different among the groups except for ZCA. The characteristic strength (p<0.05) of ZZ (η=920.4) was higher than the ZCA (η=651.1) and similar to the ZMAX (η=983.6) and ZYZ (η=1054.8). By means of quantitative and qualitative fractographic analysis, this study showed fracture toughness and strength that could be correlated to the observable microstructural features of the evaluated zirconia polycrystalline ceramics.</description><identifier>ISSN: 1751-6161</identifier><identifier>EISSN: 1878-0180</identifier><identifier>DOI: 10.1016/j.jmbbm.2015.12.006</identifier><identifier>PMID: 26722988</identifier><language>eng</language><publisher>Netherlands: Elsevier Ltd</publisher><subject>Ceramic ; Fractography ; Fracture toughness ; Materials Testing ; Mechanical Phenomena ; Mechanical properties ; Scanning electron microscopy ; Strength ; Stress, Mechanical ; Surface Properties ; Tetragonal zirconia polycrystals ; Yttria stabilized zirconia ; Yttrium ; Zirconium ; Zirconium dioxide</subject><ispartof>Journal of the mechanical behavior of biomedical materials, 2016-04, Vol.57, p.215-223</ispartof><rights>2015 Elsevier Ltd</rights><rights>Copyright © 2015 Elsevier Ltd. All rights reserved.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c392t-af1944d34aaa387668256aedae581b713a83dd0e60d492158224552a56806b7a3</citedby><cites>FETCH-LOGICAL-c392t-af1944d34aaa387668256aedae581b713a83dd0e60d492158224552a56806b7a3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.jmbbm.2015.12.006$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,777,781,3537,27905,27906,45976</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/26722988$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Ramos, Carla Müller</creatorcontrib><creatorcontrib>Cesar, Paulo Francisco</creatorcontrib><creatorcontrib>Bonfante, Estevam Augusto</creatorcontrib><creatorcontrib>Rubo, José Henrique</creatorcontrib><creatorcontrib>Wang, Linda</creatorcontrib><creatorcontrib>Borges, Ana Flávia Sanches</creatorcontrib><title>Fractographic principles applied to Y-TZP mechanical behavior analysis</title><title>Journal of the mechanical behavior of biomedical materials</title><addtitle>J Mech Behav Biomed Mater</addtitle><description>The purpose of this study was to evaluate the use of fractography principles to determine the fracture toughness of Y-TZP dental ceramic in which KIc was measured fractographically using controlled-flaw beam bending techniques and to correlate the flaw distribution with the mechanical properties. The Y-TZP blocks studied were: Zirconia Zirklein (ZZ); Zirconcad (ZCA); IPS e.max ZirCad (ZMAX); and In Ceram YZ (ZYZ). Samples were prepared (16mm×4mm×2mm) according to ISO 6872 specifications and subjected to three-point bending at a crosshead speed of 0.5mm/min. Weibull probability curves (95% confidence bounds) were calculated and a contour plot with the Weibull modulus (m) versus characteristic strength (σ0) was used to examine the differences among groups. The fractured surface of each specimen was inspected in a scanning electron microscope (SEM) for qualitative and quantitative fractographic analysis. The critical defect size (c) and fracture toughness (KIc) were estimated. The fractured surfaces of the samples from all groups showed similar fractographic characteristics, except ZCA showed pores and defects. Fracture toughness and the flexural strength values were not different among the groups except for ZCA. The characteristic strength (p<0.05) of ZZ (η=920.4) was higher than the ZCA (η=651.1) and similar to the ZMAX (η=983.6) and ZYZ (η=1054.8). By means of quantitative and qualitative fractographic analysis, this study showed fracture toughness and strength that could be correlated to the observable microstructural features of the evaluated zirconia polycrystalline ceramics.</description><subject>Ceramic</subject><subject>Fractography</subject><subject>Fracture toughness</subject><subject>Materials Testing</subject><subject>Mechanical Phenomena</subject><subject>Mechanical properties</subject><subject>Scanning electron microscopy</subject><subject>Strength</subject><subject>Stress, Mechanical</subject><subject>Surface Properties</subject><subject>Tetragonal zirconia polycrystals</subject><subject>Yttria stabilized zirconia</subject><subject>Yttrium</subject><subject>Zirconium</subject><subject>Zirconium dioxide</subject><issn>1751-6161</issn><issn>1878-0180</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2016</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNqFkD1v2zAURYmiQZM6-QUFCo1dpPKRIkUPGQIjbgsYSIZkSBbiiXyuaegrpBzA_z5y7WZsp_eGc-8FDmNfgBfAQX_fFtu2rttCcFAFiIJz_YFdgKlMzsHwj9NfKcg1aDhnn1PaTgDnxnxi50JXQsyNuWDLZUQ39r8jDpvgsiGGzoWhoZThMDSBfDb22VP-8HyfteQ22AWHTVbTBl9DHzPssNmnkC7Z2RqbRFenO2OPy9uHxc98dffj1-JmlTs5F2OOa5iXpZclIkpTaW2E0kgeSRmoK5BopPecNPflXIAyQpRKCVTacF1XKGfs27F3iP3LjtJo25AcNQ121O-SBQOagxBS_x-tqlJJVZoDKo-oi31KkdZ28tBi3Fvg9uDabu0f1_bg2oKwk8op9fU0sKtb8u-Zv3In4PoI0GTkNVC0yQXqHPkQyY3W9-GfA2_IwY8b</recordid><startdate>201604</startdate><enddate>201604</enddate><creator>Ramos, Carla Müller</creator><creator>Cesar, Paulo Francisco</creator><creator>Bonfante, Estevam Augusto</creator><creator>Rubo, José Henrique</creator><creator>Wang, Linda</creator><creator>Borges, Ana Flávia Sanches</creator><general>Elsevier Ltd</general><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope><scope>7SR</scope><scope>7TB</scope><scope>8BQ</scope><scope>8FD</scope><scope>FR3</scope><scope>JG9</scope></search><sort><creationdate>201604</creationdate><title>Fractographic principles applied to Y-TZP mechanical behavior analysis</title><author>Ramos, Carla Müller ; Cesar, Paulo Francisco ; Bonfante, Estevam Augusto ; Rubo, José Henrique ; Wang, Linda ; Borges, Ana Flávia Sanches</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c392t-af1944d34aaa387668256aedae581b713a83dd0e60d492158224552a56806b7a3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2016</creationdate><topic>Ceramic</topic><topic>Fractography</topic><topic>Fracture toughness</topic><topic>Materials Testing</topic><topic>Mechanical Phenomena</topic><topic>Mechanical properties</topic><topic>Scanning electron microscopy</topic><topic>Strength</topic><topic>Stress, Mechanical</topic><topic>Surface Properties</topic><topic>Tetragonal zirconia polycrystals</topic><topic>Yttria stabilized zirconia</topic><topic>Yttrium</topic><topic>Zirconium</topic><topic>Zirconium dioxide</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Ramos, Carla Müller</creatorcontrib><creatorcontrib>Cesar, Paulo Francisco</creatorcontrib><creatorcontrib>Bonfante, Estevam Augusto</creatorcontrib><creatorcontrib>Rubo, José Henrique</creatorcontrib><creatorcontrib>Wang, Linda</creatorcontrib><creatorcontrib>Borges, Ana Flávia Sanches</creatorcontrib><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><collection>Engineered Materials Abstracts</collection><collection>Mechanical & Transportation Engineering Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Engineering Research Database</collection><collection>Materials Research Database</collection><jtitle>Journal of the mechanical behavior of biomedical materials</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Ramos, Carla Müller</au><au>Cesar, Paulo Francisco</au><au>Bonfante, Estevam Augusto</au><au>Rubo, José Henrique</au><au>Wang, Linda</au><au>Borges, Ana Flávia Sanches</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Fractographic principles applied to Y-TZP mechanical behavior analysis</atitle><jtitle>Journal of the mechanical behavior of biomedical materials</jtitle><addtitle>J Mech Behav Biomed Mater</addtitle><date>2016-04</date><risdate>2016</risdate><volume>57</volume><spage>215</spage><epage>223</epage><pages>215-223</pages><issn>1751-6161</issn><eissn>1878-0180</eissn><abstract>The purpose of this study was to evaluate the use of fractography principles to determine the fracture toughness of Y-TZP dental ceramic in which KIc was measured fractographically using controlled-flaw beam bending techniques and to correlate the flaw distribution with the mechanical properties. The Y-TZP blocks studied were: Zirconia Zirklein (ZZ); Zirconcad (ZCA); IPS e.max ZirCad (ZMAX); and In Ceram YZ (ZYZ). Samples were prepared (16mm×4mm×2mm) according to ISO 6872 specifications and subjected to three-point bending at a crosshead speed of 0.5mm/min. Weibull probability curves (95% confidence bounds) were calculated and a contour plot with the Weibull modulus (m) versus characteristic strength (σ0) was used to examine the differences among groups. The fractured surface of each specimen was inspected in a scanning electron microscope (SEM) for qualitative and quantitative fractographic analysis. The critical defect size (c) and fracture toughness (KIc) were estimated. The fractured surfaces of the samples from all groups showed similar fractographic characteristics, except ZCA showed pores and defects. Fracture toughness and the flexural strength values were not different among the groups except for ZCA. The characteristic strength (p<0.05) of ZZ (η=920.4) was higher than the ZCA (η=651.1) and similar to the ZMAX (η=983.6) and ZYZ (η=1054.8). By means of quantitative and qualitative fractographic analysis, this study showed fracture toughness and strength that could be correlated to the observable microstructural features of the evaluated zirconia polycrystalline ceramics.</abstract><cop>Netherlands</cop><pub>Elsevier Ltd</pub><pmid>26722988</pmid><doi>10.1016/j.jmbbm.2015.12.006</doi><tpages>9</tpages></addata></record> |
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| subjects | Ceramic Fractography Fracture toughness Materials Testing Mechanical Phenomena Mechanical properties Scanning electron microscopy Strength Stress, Mechanical Surface Properties Tetragonal zirconia polycrystals Yttria stabilized zirconia Yttrium Zirconium Zirconium dioxide |
| title | Fractographic principles applied to Y-TZP mechanical behavior analysis |
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