A Novel Controlled Fabrication of Hexagonal Boron Nitride Incorporated Composite Granules Using the Electrostatic Integrated Granulation Method
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Published:2023-01-02
Issue:1
Volume:13
Page:199
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ISSN:2079-4991
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Container-title:Nanomaterials
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language:en
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Short-container-title:Nanomaterials
Author:
Nakazono Taisei, Yokoi Atsushi, Tan Wai KianORCID, Kawamura Go, Matsuda AtsunoriORCID, Muto Hiroyuki
Abstract
Despite the availability of nano and submicron-sized additive materials, the controlled incorporation and utilization of these additives remain challenging due to their difficult handling ability and agglomeration-prone properties. The formation of composite granules exhibiting unique microstructure with desired additives distribution and good handling ability has been reported using the electrostatic integrated granulation method. This study demonstrates the feasible controlled incorporation of two-dimensional hexagonal boron nitride (hBN) sheets with alumina (Al2O3) particles, forming Al2O3–hBN core–shell composite granules. The sintered artifacts obtained using Al2O3–hBN core–shell composite granules exhibited an approximately 28% higher thermal conductivity than those obtained using homogeneously hBN-incorporated Al2O3 composite granules. The findings from this study would be beneficial for developing microstructurally controlled composite granules with the potential for scalable fabrication via powder-metallurgy inspired methods.
Funder
Japan Society for the Promotion of Science Nippon Sheet Glass Foundation for Materials Science and Engineering
Subject
General Materials Science,General Chemical Engineering
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