{"title":"Modeling to determine the size dependence of Debye temperature in monometallic and bimetallic nanoalloys","authors":"M. Goyal, Madan Singh","doi":"10.32908/hthp.v51.1123","DOIUrl":null,"url":null,"abstract":"A simple unified model is used to study the variation in Debye temperature in monometallic and bimetallic nanoalloys. In the present study, a systematic investigation of variation in Debye temperature is done to analyze the impact of size, shape, composition and dimension in monometallic and bimetallic nanoalloys. It is found that Debye temperature in monometallic and bimetallic nanoalloys decreases with decrease in size of nanoalloy. Moreover, for nanoalloys of same size and composition, the Debye temperature varies with dimension too. Debye temperature of nanofilms is found more than that of nanowires and nanoparticles. Debye temperature is also found to vary with shape of the nanoalloy due to change in surface area to volume ratio with shape. The predicted model results are found in good agreement with the available experimental results which justifies the suitability of the present model.","PeriodicalId":12983,"journal":{"name":"High Temperatures-high Pressures","volume":"1 1","pages":""},"PeriodicalIF":1.1000,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"High Temperatures-high Pressures","FirstCategoryId":"5","ListUrlMain":"https://doi.org/10.32908/hthp.v51.1123","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: 0
Abstract
A simple unified model is used to study the variation in Debye temperature in monometallic and bimetallic nanoalloys. In the present study, a systematic investigation of variation in Debye temperature is done to analyze the impact of size, shape, composition and dimension in monometallic and bimetallic nanoalloys. It is found that Debye temperature in monometallic and bimetallic nanoalloys decreases with decrease in size of nanoalloy. Moreover, for nanoalloys of same size and composition, the Debye temperature varies with dimension too. Debye temperature of nanofilms is found more than that of nanowires and nanoparticles. Debye temperature is also found to vary with shape of the nanoalloy due to change in surface area to volume ratio with shape. The predicted model results are found in good agreement with the available experimental results which justifies the suitability of the present model.
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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