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نتیجه جستجو - Lattice thermal conductivity

تعداد مقالات یافته شده: 1
ردیف عنوان نوع
1 Machine learning models for the lattice thermal conductivity prediction of inorganic materials
مدل های یادگیری ماشین برای پیش بینی هدایت حرارتی شبکه از مواد معدنی-2019
The lattice thermal conductivity (κL) is a critical property of thermoelectrics, thermal barrier coating materials and semiconductors. While accurate empirical measurements of κL are extremely challenging, it is usually approximated through computational approaches, such as semi-empirical models, Green-Kubo formalism coupled with molecular dynamics simulations, and first-principles based methods. However, these theoretical methods are not only limited in terms of their accuracy, but sometimes become computationally intractable owing to their cost. Thus, in this work, we build a machine learning (ML)-based model to accurately and instantly predict κL of inorganic materials, using a benchmark data set of experimentally measured κL of about 100 inorganic materials. We use advanced and universal feature engineering techniques along with the Gaussian process regression algorithm, and compare the performance of our ML model with past theoretical works. The trained ML model is not only helpful for rational design and screening of novel materials, but we also identify key features governing the thermal transport behavior in non-metals.
Keywords: Lattice thermal conductivity | Inorganic materials | Machine learning Models
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بازدید امروز: 9750 :::::::: بازدید دیروز: 0 :::::::: بازدید کل: 9750 :::::::: افراد آنلاین: 74