{"title":"Temperature Dependences of the Heat Capacity and Thermodynamic Functions of Aluminum Conducting Alloy AlTi0.1 with Strontium","authors":"","doi":"10.1134/s0018151x23030124","DOIUrl":null,"url":null,"abstract":"<span> <h3>Abstract</h3> <p>In this study, the heat capacity of the aluminum conducting alloy AlTi0.1 (Al + 0.1 wt % of Ti) with strontium in the cooling mode is determined using the known heat capacity of a standard sample of A5N grade high-purity aluminum (99.999% of Al). Equations were obtained to describe the cooling rates of samples of the AlTi0.1 alloy with strontium and the standard. Based on the calculated cooling rates of the samples, equations for the temperature dependence of the heat capacities of the alloys and the standard were formed. By integrating the specific heat, the temperature dependences of changes in enthalpy, entropy, and the Gibbs energy of the alloy under study were calculated. The heat capacity, enthalpy, and entropy of AlTi0.1 decrease with increasing strontium concentration and increase with temperature; the value of the Gibbs energy has an inverse relationship.</p> </span>","PeriodicalId":13163,"journal":{"name":"High Temperature","volume":null,"pages":null},"PeriodicalIF":1.0000,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"High Temperature","FirstCategoryId":"101","ListUrlMain":"https://doi.org/10.1134/s0018151x23030124","RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"PHYSICS, APPLIED","Score":null,"Total":0}
引用次数: 0
Abstract
In this study, the heat capacity of the aluminum conducting alloy AlTi0.1 (Al + 0.1 wt % of Ti) with strontium in the cooling mode is determined using the known heat capacity of a standard sample of A5N grade high-purity aluminum (99.999% of Al). Equations were obtained to describe the cooling rates of samples of the AlTi0.1 alloy with strontium and the standard. Based on the calculated cooling rates of the samples, equations for the temperature dependence of the heat capacities of the alloys and the standard were formed. By integrating the specific heat, the temperature dependences of changes in enthalpy, entropy, and the Gibbs energy of the alloy under study were calculated. The heat capacity, enthalpy, and entropy of AlTi0.1 decrease with increasing strontium concentration and increase with temperature; the value of the Gibbs energy has an inverse relationship.
期刊介绍：
High Temperature is an international peer reviewed journal that publishes original papers and reviews written by theoretical and experimental researchers. The journal deals with properties and processes in low-temperature plasma; thermophysical properties of substances including pure materials, mixtures and alloys; the properties in the vicinity of the critical point, equations of state; phase equilibrium; heat and mass transfer phenomena, in particular, by forced and free convections; processes of boiling and condensation, radiation, and complex heat transfer; experimental methods and apparatuses; high-temperature facilities for power engineering applications, etc. The journal reflects the current trends in thermophysical research. It presents the results of present-day experimental and theoretical studies in the processes of complex heat transfer, thermal, gas dynamic processes, and processes of heat and mass transfer, as well as the latest advances in the theoretical description of the properties of high-temperature media.
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