Method of manufacturing hexagonal boron nitride laminates
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Jun 22, 2017
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Feb 20, 2016
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A method of manufacturing a hexagonal boron nitride laminate contains steps of: a) Dissolve dielectric polymers in solvent. b) Mixing h-BN powder to form a well-mixed h-BN coating slurry. c) Coating slurry on substrates and dried at 100-150° C. The substrates can directly be etched or processed to form electric circuits. Substrates can also be completely etched or detached to attain a free standing laminate. Thereby, a hexagonal boron nitride laminate exhibit thermal conductivity of 10 to 40 W/m·K, which is significantly larger than that currently used in thermal management. In addition, thermal conductivity of hexagonal boron nitride laminates increases with the increasing mass density, which opens a way of fine tuning of its thermal properties. For heat dissipation application, hexagonal boron nitride laminate coating can significantly enhance the performance of LED light bulb.
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