Thermal cycling and reactivity of a MoSi2/ZrO2 composite designed for self-healing thermal barrier coatings
Consolidated (relative density of 84%) composite made of molybdenum di-silicide (MoSi2) particles dispersed in a yttria partially stabilized zirconia matrix (8Y2O3–Zr02) was prepared by spark plasma sintering. Cyclic oxidation of the composite at temperature ranging from 1000°C to 1300°C was studied...
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| Veröffentlicht in: | Materials & Design 2016-03, Vol.94, p.444-448 |
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| creator | Nozahic, Franck Monceau, Daniel Estournès, Claude |
| description | Consolidated (relative density of 84%) composite made of molybdenum di-silicide (MoSi2) particles dispersed in a yttria partially stabilized zirconia matrix (8Y2O3–Zr02) was prepared by spark plasma sintering. Cyclic oxidation of the composite at temperature ranging from 1000°C to 1300°C was studied. Parabolic rate constants (kp) values of the composite material are in good agreement with those obtained in the literature for the oxidation of bulk MoSi2. Following oxidation exposure, formation of Mo5Si3, SiO2 and ZrSiO4 phases was observed. These observations are compatible with the use of MoSi2 as a self-healing agent in YPSZ thermal barrier coatings.
[Display omitted]
•Consolidated composite made of MoSi2 particles dispersed in a yttria partially stabilized ZrO2 matrix has been prepared by SPS.•Cyclic oxidation behavior under dry air of the composite has been investigated.•MoSi2 oxidation results in the formation of silica that reacts with the YPSZ matrix to form zircon.•Oxidation rate constant values of the composite were determined at four temperatures.•Zircon is observed far away from the MoSi2 particles and this can be very beneficial for the self-healing mechanism of the composite. |
| doi_str_mv | 10.1016/j.matdes.2016.01.054 |
| format | Article |
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[Display omitted]
•Consolidated composite made of MoSi2 particles dispersed in a yttria partially stabilized ZrO2 matrix has been prepared by SPS.•Cyclic oxidation behavior under dry air of the composite has been investigated.•MoSi2 oxidation results in the formation of silica that reacts with the YPSZ matrix to form zircon.•Oxidation rate constant values of the composite were determined at four temperatures.•Zircon is observed far away from the MoSi2 particles and this can be very beneficial for the self-healing mechanism of the composite.</description><identifier>ISSN: 0264-1275</identifier><identifier>ISSN: 0261-3069</identifier><identifier>EISSN: 1873-4197</identifier><identifier>EISSN: 0264-1275</identifier><identifier>DOI: 10.1016/j.matdes.2016.01.054</identifier><language>eng</language><publisher>Elsevier Ltd</publisher><subject>Ceramic matrix composites (CMC) ; Chemical Sciences ; Cyclic oxidation ; Cyclic Thermogravimetric Analysis (CTGA) ; Density ; Engineering Sciences ; Intermetallic compounds ; Material chemistry ; Materials ; Molybdenum ; Oxidation ; Particulate composites ; Self healing materials ; Spark plasma sintering ; Thermal barrier coatings ; Thermal cycling ; Zirconium dioxide</subject><ispartof>Materials & Design, 2016-03, Vol.94, p.444-448</ispartof><rights>2016 Elsevier Ltd</rights><rights>Distributed under a Creative Commons Attribution 4.0 International License</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c485t-46ee3a372bf5257b57450a8afd21f4282cb289aebe9e8d5471883cbfe4ede2273</citedby><cites>FETCH-LOGICAL-c485t-46ee3a372bf5257b57450a8afd21f4282cb289aebe9e8d5471883cbfe4ede2273</cites><orcidid>0000-0002-0693-5005</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>230,314,780,784,885,27924,27925</link.rule.ids><backlink>$$Uhttps://hal.science/hal-01486885$$DView record in HAL$$Hfree_for_read</backlink></links><search><creatorcontrib>Nozahic, Franck</creatorcontrib><creatorcontrib>Monceau, Daniel</creatorcontrib><creatorcontrib>Estournès, Claude</creatorcontrib><title>Thermal cycling and reactivity of a MoSi2/ZrO2 composite designed for self-healing thermal barrier coatings</title><title>Materials & Design</title><description>Consolidated (relative density of 84%) composite made of molybdenum di-silicide (MoSi2) particles dispersed in a yttria partially stabilized zirconia matrix (8Y2O3–Zr02) was prepared by spark plasma sintering. Cyclic oxidation of the composite at temperature ranging from 1000°C to 1300°C was studied. Parabolic rate constants (kp) values of the composite material are in good agreement with those obtained in the literature for the oxidation of bulk MoSi2. Following oxidation exposure, formation of Mo5Si3, SiO2 and ZrSiO4 phases was observed. These observations are compatible with the use of MoSi2 as a self-healing agent in YPSZ thermal barrier coatings.
[Display omitted]
•Consolidated composite made of MoSi2 particles dispersed in a yttria partially stabilized ZrO2 matrix has been prepared by SPS.•Cyclic oxidation behavior under dry air of the composite has been investigated.•MoSi2 oxidation results in the formation of silica that reacts with the YPSZ matrix to form zircon.•Oxidation rate constant values of the composite were determined at four temperatures.•Zircon is observed far away from the MoSi2 particles and this can be very beneficial for the self-healing mechanism of the composite.</description><subject>Ceramic matrix composites (CMC)</subject><subject>Chemical Sciences</subject><subject>Cyclic oxidation</subject><subject>Cyclic Thermogravimetric Analysis (CTGA)</subject><subject>Density</subject><subject>Engineering Sciences</subject><subject>Intermetallic compounds</subject><subject>Material chemistry</subject><subject>Materials</subject><subject>Molybdenum</subject><subject>Oxidation</subject><subject>Particulate composites</subject><subject>Self healing materials</subject><subject>Spark plasma sintering</subject><subject>Thermal barrier coatings</subject><subject>Thermal cycling</subject><subject>Zirconium dioxide</subject><issn>0264-1275</issn><issn>0261-3069</issn><issn>1873-4197</issn><issn>0264-1275</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2016</creationdate><recordtype>article</recordtype><recordid>eNp9kU9v3CAQxVHVSt2m_QY9cEwPdgDDgi-Voih_Km2VQ9NLLwjjIcvGNhtgV9pvH1xHOeY0mtF7v9HMQ-g7JTUldH2xq0eTe0g1K11NaE0E_4BWVMmm4rSVH9GKsDWvKJPiM_qS0o4QxmTDV-jpYQtxNAO2Jzv46RGbqccRjM3-6PMJB4cN_h3-eHbxL94zbMO4D8lnwGWff5ygxy5EnGBw1RbMf0R-RXYmRg-xeEwu8_QVfXJmSPDttZ6hvzfXD1d31eb-9tfV5aayXIlc8TVAYxrJOieYkJ2QXBCjjOsZdZwpZjumWgMdtKB6wSVVqrGdAw49zGedoR8Ld2sGvY9-NPGkg_H67nKj5xmhXK2VEkdatOeLdh_D8wFS1qNPFobBTBAOSVPZNqz8sJ2lfJHaGFKK4N7YlOg5B73TSw56zqFs0SWHYvu52KCcfCz_0Ml6mCz0PoLNug_-fcAL1mmTSQ</recordid><startdate>20160315</startdate><enddate>20160315</enddate><creator>Nozahic, Franck</creator><creator>Monceau, Daniel</creator><creator>Estournès, Claude</creator><general>Elsevier Ltd</general><general>Elsevier</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope><scope>1XC</scope><scope>VOOES</scope><orcidid>https://orcid.org/0000-0002-0693-5005</orcidid></search><sort><creationdate>20160315</creationdate><title>Thermal cycling and reactivity of a MoSi2/ZrO2 composite designed for self-healing thermal barrier coatings</title><author>Nozahic, Franck ; Monceau, Daniel ; Estournès, Claude</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c485t-46ee3a372bf5257b57450a8afd21f4282cb289aebe9e8d5471883cbfe4ede2273</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2016</creationdate><topic>Ceramic matrix composites (CMC)</topic><topic>Chemical Sciences</topic><topic>Cyclic oxidation</topic><topic>Cyclic Thermogravimetric Analysis (CTGA)</topic><topic>Density</topic><topic>Engineering Sciences</topic><topic>Intermetallic compounds</topic><topic>Material chemistry</topic><topic>Materials</topic><topic>Molybdenum</topic><topic>Oxidation</topic><topic>Particulate composites</topic><topic>Self healing materials</topic><topic>Spark plasma sintering</topic><topic>Thermal barrier coatings</topic><topic>Thermal cycling</topic><topic>Zirconium dioxide</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Nozahic, Franck</creatorcontrib><creatorcontrib>Monceau, Daniel</creatorcontrib><creatorcontrib>Estournès, Claude</creatorcontrib><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><collection>Hyper Article en Ligne (HAL)</collection><collection>Hyper Article en Ligne (HAL) (Open Access)</collection><jtitle>Materials & Design</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Nozahic, Franck</au><au>Monceau, Daniel</au><au>Estournès, Claude</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Thermal cycling and reactivity of a MoSi2/ZrO2 composite designed for self-healing thermal barrier coatings</atitle><jtitle>Materials & Design</jtitle><date>2016-03-15</date><risdate>2016</risdate><volume>94</volume><spage>444</spage><epage>448</epage><pages>444-448</pages><issn>0264-1275</issn><issn>0261-3069</issn><eissn>1873-4197</eissn><eissn>0264-1275</eissn><abstract>Consolidated (relative density of 84%) composite made of molybdenum di-silicide (MoSi2) particles dispersed in a yttria partially stabilized zirconia matrix (8Y2O3–Zr02) was prepared by spark plasma sintering. Cyclic oxidation of the composite at temperature ranging from 1000°C to 1300°C was studied. Parabolic rate constants (kp) values of the composite material are in good agreement with those obtained in the literature for the oxidation of bulk MoSi2. Following oxidation exposure, formation of Mo5Si3, SiO2 and ZrSiO4 phases was observed. These observations are compatible with the use of MoSi2 as a self-healing agent in YPSZ thermal barrier coatings.
[Display omitted]
•Consolidated composite made of MoSi2 particles dispersed in a yttria partially stabilized ZrO2 matrix has been prepared by SPS.•Cyclic oxidation behavior under dry air of the composite has been investigated.•MoSi2 oxidation results in the formation of silica that reacts with the YPSZ matrix to form zircon.•Oxidation rate constant values of the composite were determined at four temperatures.•Zircon is observed far away from the MoSi2 particles and this can be very beneficial for the self-healing mechanism of the composite.</abstract><pub>Elsevier Ltd</pub><doi>10.1016/j.matdes.2016.01.054</doi><tpages>5</tpages><orcidid>https://orcid.org/0000-0002-0693-5005</orcidid><oa>free_for_read</oa></addata></record> |
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| source | Alma/SFX Local Collection |
| subjects | Ceramic matrix composites (CMC) Chemical Sciences Cyclic oxidation Cyclic Thermogravimetric Analysis (CTGA) Density Engineering Sciences Intermetallic compounds Material chemistry Materials Molybdenum Oxidation Particulate composites Self healing materials Spark plasma sintering Thermal barrier coatings Thermal cycling Zirconium dioxide |
| title | Thermal cycling and reactivity of a MoSi2/ZrO2 composite designed for self-healing thermal barrier coatings |
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