DC Field | Value | Language |
---|---|---|
dc.contributor.author | Lee, Dongwoo | ko |
dc.contributor.author | Sim, Gi-Dong | ko |
dc.contributor.author | Xiao, Kechao | ko |
dc.contributor.author | Vlassak, Joost J. | ko |
dc.date.accessioned | 2018-02-21T05:54:40Z | - |
dc.date.available | 2018-02-21T05:54:40Z | - |
dc.date.created | 2018-02-02 | - |
dc.date.created | 2018-02-02 | - |
dc.date.issued | 2014-09 | - |
dc.identifier.citation | JOURNAL OF PHYSICAL CHEMISTRY C, v.118, no.36, pp.21192 - 21198 | - |
dc.identifier.issn | 1932-7447 | - |
dc.identifier.uri | http://hdl.handle.net/10203/240179 | - |
dc.description.abstract | We demonstrate a route to synthesize ultra-high-temperature ceramic coatings of ZrB2 at temperatures below 1300 K using Zr/B reactive multilayers. Highly textured crystalline ZrB2 is formed at modest temperatures because of the absence of any oxide at the interface between Zr and B and the very short diffusion distance that is inherent to the multilayer geometry. The kinetics of the ZrB2 formation reaction is analyzed using high-temperature scanning nanocalorimetry, and the microstructural evolution of the multilayer is revealed using transmission electron microscopy. We show that the Zr/B reaction proceeds in two stages: (1) interdiffusion between the nanocrystalline Zr and the amorphous B layers, forming an amorphous Zr/B alloy, and (2) crystallization of the amorphous alloy to form ZrB2. Scanning nanocalorimetry measurements performed at heating rates ranging from 3100 to 10000 K/s allow determination of the kinetic parameters of the multilayer reaction, yielding activation energies of 0.47 and 2.4 eV for Zr/B interdiffusion and ZrB2 crystallization, respectively. | - |
dc.language | English | - |
dc.publisher | AMER CHEMICAL SOC | - |
dc.subject | DIFFERENTIAL SCANNING CALORIMETRY | - |
dc.subject | SOLID-STATE AMORPHIZATION | - |
dc.subject | THIN-FILM REACTIONS | - |
dc.subject | ZIRCONIUM DIBORIDE | - |
dc.subject | PARTICLE-SIZE | - |
dc.subject | DENSIFICATION | - |
dc.subject | CERAMICS | - |
dc.subject | NUCLEATION | - |
dc.subject | NANOSCALE | - |
dc.subject | COMPOSITE | - |
dc.title | Low-Temperature Synthesis of Ultra-High-Temperature Coatings of ZrB2 Using Reactive Multilayers | - |
dc.type | Article | - |
dc.identifier.wosid | 000341619500053 | - |
dc.identifier.scopusid | 2-s2.0-84908420872 | - |
dc.type.rims | ART | - |
dc.citation.volume | 118 | - |
dc.citation.issue | 36 | - |
dc.citation.beginningpage | 21192 | - |
dc.citation.endingpage | 21198 | - |
dc.citation.publicationname | JOURNAL OF PHYSICAL CHEMISTRY C | - |
dc.identifier.doi | 10.1021/jp505941g | - |
dc.contributor.localauthor | Sim, Gi-Dong | - |
dc.contributor.nonIdAuthor | Lee, Dongwoo | - |
dc.contributor.nonIdAuthor | Xiao, Kechao | - |
dc.contributor.nonIdAuthor | Vlassak, Joost J. | - |
dc.description.isOpenAccess | N | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordPlus | DIFFERENTIAL SCANNING CALORIMETRY | - |
dc.subject.keywordPlus | SOLID-STATE AMORPHIZATION | - |
dc.subject.keywordPlus | THIN-FILM REACTIONS | - |
dc.subject.keywordPlus | ZIRCONIUM DIBORIDE | - |
dc.subject.keywordPlus | PARTICLE-SIZE | - |
dc.subject.keywordPlus | DENSIFICATION | - |
dc.subject.keywordPlus | CERAMICS | - |
dc.subject.keywordPlus | NUCLEATION | - |
dc.subject.keywordPlus | NANOSCALE | - |
dc.subject.keywordPlus | COMPOSITE | - |
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