{"title":"Composition and dimension dependence of melting temperature in bimetallic nanoalloys","authors":"M. Goyal","doi":"10.32908/hthp.v50.981","DOIUrl":null,"url":null,"abstract":"The phenomological model for cohesive energy of metallic nanomaterials is extended to investigate the variation in thermodynamic properties of bimetallic nanostructures. The systematic investigation of variation in melting temperature of bimetallic nanomaterials is done to study the impact of size, composition and dimension. Decrease in melting temperature of bimetallic nanoalloys is found as size of nanoalloy decreases. It is noted that for bimetallic nanoalloys of same composition and having same size, the melting temperature varies on the basis of dimension of nanoalloy in the sequence such that (Tmn)nanofilms> (Tmn)nanowires> (Tmn)nanoparticles. The present predicted results obtained from extended model are compared with the simulated and experimental results available. Good consistency is observed between the compared results which justify the present model theory.","PeriodicalId":12983,"journal":{"name":"High Temperatures-high Pressures","volume":null,"pages":null},"PeriodicalIF":1.1000,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"High Temperatures-high Pressures","FirstCategoryId":"5","ListUrlMain":"https://doi.org/10.32908/hthp.v50.981","RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"Engineering","Score":null,"Total":0}
引用次数: 1
Abstract
The phenomological model for cohesive energy of metallic nanomaterials is extended to investigate the variation in thermodynamic properties of bimetallic nanostructures. The systematic investigation of variation in melting temperature of bimetallic nanomaterials is done to study the impact of size, composition and dimension. Decrease in melting temperature of bimetallic nanoalloys is found as size of nanoalloy decreases. It is noted that for bimetallic nanoalloys of same composition and having same size, the melting temperature varies on the basis of dimension of nanoalloy in the sequence such that (Tmn)nanofilms> (Tmn)nanowires> (Tmn)nanoparticles. The present predicted results obtained from extended model are compared with the simulated and experimental results available. Good consistency is observed between the compared results which justify the present model theory.
期刊介绍：
High Temperatures – High Pressures (HTHP) is an international journal publishing original peer-reviewed papers devoted to experimental and theoretical studies on thermophysical properties of matter, as well as experimental and modelling solutions for applications where control of thermophysical properties is critical, e.g. additive manufacturing. These studies deal with thermodynamic, thermal, and mechanical behaviour of materials, including transport and radiative properties. The journal provides a platform for disseminating knowledge of thermophysical properties, their measurement, their applications, equipment and techniques. HTHP covers the thermophysical properties of gases, liquids, and solids at all temperatures and under all physical conditions, with special emphasis on matter and applications under extreme conditions, e.g. high temperatures and high pressures. Additionally, HTHP publishes authoritative reviews of advances in thermophysics research, critical compilations of existing data, new technology, and industrial applications, plus book reviews.
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