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BN crystal structure there is no electrons in free,it is an insulator and have high melting point. Almost all of the molten metal were tested chemical reaction.
The thermal conductivity of BN does not change with temperature and changes in theramal conductivity of graphite is relatively large.
The life of BN crucible is far greater than the graphite crucible.
Hot pressed h-BN, with hardness about 4, is a machinable material.
As the forming of this material is not quite easy, it requires about 1900F if it is hot pressed without boron oxide.
BN material could withstand higher temperature in vacuum. Missionis contiuoursly cooperate with manufacturers and research instituations to enhance the product performance. Our hBN custom parts would have similar performance , especially for high temperature applications.
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