Open AccessModeling the Structure and Processes of Heat Transfer in Beds of Aluminum Micro- and Nanopowders
Author(s) -
Yu. P. Zarichnyak,
В. А. Иванов,
A. Marova,
И. Н. Николаев,
V. P. Khodunkov
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/2096/1/012164
Subject(s) - thermal conductivity , porosity , materials science , heat transfer , particle (ecology) , nanometre , range (aeronautics) , aluminium , particle size , thermal , composite material , thermal conduction , mineralogy , mechanics , thermodynamics , chemical engineering , chemistry , geology , physics , engineering , oceanography
A model of the structure and a method for calculating (forecasting) the thermal conductivity of beds from coarse to nano-dispersed aluminum powders are developed. A significant change in the thermal conductivity of the particles themselves was taken into account during the transition from the micro-meter to the nanometer-sized range of particle sizes. The thermal conductivity was calculated over a wide range of particle sizes, granular structure skeleton porosity, and total porosity of the beds.