Anisotropy, size, and aspect ratio effects on micropillar compression of Al SiC nanolaminate composites
Metal-ceramic nanolaminate composites show promise as high strength and toughness materials. Micropillar compression was used to characterize the mechanical behavior of Al-SiC multilayers in different orientations including loading at 0 degree , 45 degree and 90 degree with respect to the direction...
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| Veröffentlicht in: | Acta materialia 2016-08, Vol.114 (C), p.25-32 |
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| container_title | Acta materialia |
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| creator | Mayer, C.R. Yang, L.W. Singh, S.S. Llorca, J. Molina-Aldareguia, J.M. Shen, Y.L. Chawla, N. |
| description | Metal-ceramic nanolaminate composites show promise as high strength and toughness materials. Micropillar compression was used to characterize the mechanical behavior of Al-SiC multilayers in different orientations including loading at 0 degree , 45 degree and 90 degree with respect to the direction of the layers. The 0 degree orientation showed the highest strength while the 45 degree orientation showed the lowest strength. Each orientation showed unique deformation behavior. Effects of pillar size and aspect ratio were also studied. Higher compressive strengths were observed in smaller pillars for all orientations. This effect was shown to be due to a lower probability of flaws using Weibull statistics. Additionally, changes in the aspect ratio was shown to have no significant effect on the behavior except an increase in the strain to failure in the 0 degree orientation. Finite element analysis (FEA) was used to simulate and understand the effect of these parameters on the deformation behavior. |
| doi_str_mv | 10.1016/j.actamat.2016.05.018 |
| format | Article |
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Micropillar compression was used to characterize the mechanical behavior of Al-SiC multilayers in different orientations including loading at 0 degree , 45 degree and 90 degree with respect to the direction of the layers. The 0 degree orientation showed the highest strength while the 45 degree orientation showed the lowest strength. Each orientation showed unique deformation behavior. Effects of pillar size and aspect ratio were also studied. Higher compressive strengths were observed in smaller pillars for all orientations. This effect was shown to be due to a lower probability of flaws using Weibull statistics. Additionally, changes in the aspect ratio was shown to have no significant effect on the behavior except an increase in the strain to failure in the 0 degree orientation. 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Micropillar compression was used to characterize the mechanical behavior of Al-SiC multilayers in different orientations including loading at 0 degree , 45 degree and 90 degree with respect to the direction of the layers. The 0 degree orientation showed the highest strength while the 45 degree orientation showed the lowest strength. Each orientation showed unique deformation behavior. Effects of pillar size and aspect ratio were also studied. Higher compressive strengths were observed in smaller pillars for all orientations. This effect was shown to be due to a lower probability of flaws using Weibull statistics. Additionally, changes in the aspect ratio was shown to have no significant effect on the behavior except an increase in the strain to failure in the 0 degree orientation. Finite element analysis (FEA) was used to simulate and understand the effect of these parameters on the deformation behavior.</description><subject>Aluminum</subject><subject>Aspect ratio</subject><subject>Deformation</subject><subject>Finite element method</subject><subject>Finite elements</subject><subject>MATERIALS SCIENCE</subject><subject>Multilayer</subject><subject>Nanocomposite</subject><subject>NANOSCIENCE AND NANOTECHNOLOGY</subject><subject>Nanostructure</subject><subject>Orientation</subject><subject>Orientation dependence</subject><subject>Pillars</subject><subject>Strength</subject><subject>Weibull analysis</subject><issn>1359-6454</issn><issn>1873-2453</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2016</creationdate><recordtype>article</recordtype><recordid>eNotkMtOwzAQRSMEElD4BCSLFYsm-B2zrCpeEhILYG1NjQOuEjtk3EX5elza1cydOZrRvVV1xWjDKNO36wZchgFyw4tsqGooM0fVGTOtqLlU4rj0Qt3VWip5Wp0jrillvJX0rPpaxIApT2nczgmGXz8nED8J4OhdJhPkkIjvuiKQpEiG4Aoa-h4m4tIwTh4xlHnqyKInb2FJIsTUwxAiZP-PJAzZ40V10kGP_vJQZ9XHw_378ql-eX18Xi5eaie5znVLGW25MOBXSgNlIJTRZfWpxYrfOW9a3XKpleEgqGYSDPfeaCM7KdrVSohZdb2_mzAHi678dt8uxVgcWCaZUZwV6GYPjVP62XjMdgjofHEVfdqgZYYrxVojd6jao8U34uQ7O05hgGlrGbW79O3aHtK3u_QtVbakL_4AHzV6Ow</recordid><startdate>20160801</startdate><enddate>20160801</enddate><creator>Mayer, C.R.</creator><creator>Yang, L.W.</creator><creator>Singh, S.S.</creator><creator>Llorca, J.</creator><creator>Molina-Aldareguia, J.M.</creator><creator>Shen, Y.L.</creator><creator>Chawla, N.</creator><general>Elsevier</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7QF</scope><scope>7SR</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope><scope>OIOZB</scope><scope>OTOTI</scope><orcidid>https://orcid.org/0000-0003-3508-6003</orcidid><orcidid>https://orcid.org/0000000335086003</orcidid></search><sort><creationdate>20160801</creationdate><title>Anisotropy, size, and aspect ratio effects on micropillar compression of Al SiC nanolaminate composites</title><author>Mayer, C.R. ; Yang, L.W. ; Singh, S.S. ; Llorca, J. ; Molina-Aldareguia, J.M. ; Shen, Y.L. ; Chawla, N.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c426t-70107238aeb56a01a3586c42d63b29ce8767246582a30614a82ee8684f437bb33</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2016</creationdate><topic>Aluminum</topic><topic>Aspect ratio</topic><topic>Deformation</topic><topic>Finite element method</topic><topic>Finite elements</topic><topic>MATERIALS SCIENCE</topic><topic>Multilayer</topic><topic>Nanocomposite</topic><topic>NANOSCIENCE AND NANOTECHNOLOGY</topic><topic>Nanostructure</topic><topic>Orientation</topic><topic>Orientation dependence</topic><topic>Pillars</topic><topic>Strength</topic><topic>Weibull analysis</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Mayer, C.R.</creatorcontrib><creatorcontrib>Yang, L.W.</creatorcontrib><creatorcontrib>Singh, S.S.</creatorcontrib><creatorcontrib>Llorca, J.</creatorcontrib><creatorcontrib>Molina-Aldareguia, J.M.</creatorcontrib><creatorcontrib>Shen, Y.L.</creatorcontrib><creatorcontrib>Chawla, N.</creatorcontrib><creatorcontrib>Univ. of New Mexico, Albuquerque, NM (United States)</creatorcontrib><collection>CrossRef</collection><collection>Aluminium Industry Abstracts</collection><collection>Engineered Materials Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><collection>OSTI.GOV - Hybrid</collection><collection>OSTI.GOV</collection><jtitle>Acta materialia</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Mayer, C.R.</au><au>Yang, L.W.</au><au>Singh, S.S.</au><au>Llorca, J.</au><au>Molina-Aldareguia, J.M.</au><au>Shen, Y.L.</au><au>Chawla, N.</au><aucorp>Univ. of New Mexico, Albuquerque, NM (United States)</aucorp><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Anisotropy, size, and aspect ratio effects on micropillar compression of Al SiC nanolaminate composites</atitle><jtitle>Acta materialia</jtitle><date>2016-08-01</date><risdate>2016</risdate><volume>114</volume><issue>C</issue><spage>25</spage><epage>32</epage><pages>25-32</pages><issn>1359-6454</issn><eissn>1873-2453</eissn><abstract>Metal-ceramic nanolaminate composites show promise as high strength and toughness materials. Micropillar compression was used to characterize the mechanical behavior of Al-SiC multilayers in different orientations including loading at 0 degree , 45 degree and 90 degree with respect to the direction of the layers. The 0 degree orientation showed the highest strength while the 45 degree orientation showed the lowest strength. Each orientation showed unique deformation behavior. Effects of pillar size and aspect ratio were also studied. Higher compressive strengths were observed in smaller pillars for all orientations. This effect was shown to be due to a lower probability of flaws using Weibull statistics. Additionally, changes in the aspect ratio was shown to have no significant effect on the behavior except an increase in the strain to failure in the 0 degree orientation. 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| ispartof | Acta materialia, 2016-08, Vol.114 (C), p.25-32 |
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| source | Elsevier ScienceDirect Journals |
| subjects | Aluminum Aspect ratio Deformation Finite element method Finite elements MATERIALS SCIENCE Multilayer Nanocomposite NANOSCIENCE AND NANOTECHNOLOGY Nanostructure Orientation Orientation dependence Pillars Strength Weibull analysis |
| title | Anisotropy, size, and aspect ratio effects on micropillar compression of Al SiC nanolaminate composites |
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