{"title":"Influence of the Physical and Chemical Properties of Particles on the Thermal Conductivity of Polymer Composite Materials","authors":"R. A. Shishkin","doi":"10.1134/s0018151x23020153","DOIUrl":null,"url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>The dependences between thermal conductivity and the maximum volume fraction of the filler in heat sink compound on the size, morphology, specific surface area, and particle porosity, as well as the contact angle with silicone, of various materials such as aluminum oxides, silicon, magnesium, aluminum and boron nitrides, silicon carbide, metals (aluminum, copper, nickel), and carbon materials (graphite and diamond) is presented. The quality of the produced heat sink compound is not governed by any single property listed, but rather by the combination of properties such as morphology and specific surface area (or porosity) of the particles. For each type of filler particle shape, an inversely proportional relationship exists between the specific surface area and the maximum volume fraction of the polymer. Specific aspects were discussed regarding the effect of the material’s phase and chemical composition on the angle of wettability by polydimethylsiloxane.</p>","PeriodicalId":13163,"journal":{"name":"High Temperature","volume":null,"pages":null},"PeriodicalIF":1.0000,"publicationDate":"2024-03-03","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/s0018151x23020153","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
The dependences between thermal conductivity and the maximum volume fraction of the filler in heat sink compound on the size, morphology, specific surface area, and particle porosity, as well as the contact angle with silicone, of various materials such as aluminum oxides, silicon, magnesium, aluminum and boron nitrides, silicon carbide, metals (aluminum, copper, nickel), and carbon materials (graphite and diamond) is presented. The quality of the produced heat sink compound is not governed by any single property listed, but rather by the combination of properties such as morphology and specific surface area (or porosity) of the particles. For each type of filler particle shape, an inversely proportional relationship exists between the specific surface area and the maximum volume fraction of the polymer. Specific aspects were discussed regarding the effect of the material’s phase and chemical composition on the angle of wettability by polydimethylsiloxane.
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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