boron nitride

American  

noun

Chemistry.

1. a white powder, BN, formed by heating boron in nitrogen. In its ordinary form, it has a structure of stacked layers of hexagonal rings, very similar to that of graphite, and is used as a refractory electrical insulator.

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boron nitride British  

noun

1. a white inert crystalline solid existing both in a graphite-like form and in an extremely hard diamond-like form (borazon). It is used as a refractory, high temperature lubricant and insulator, and heat shield. Formula: BN

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Example Sentences

These values surpass those of commonly used materials such as silicon dioxide and hexagonal boron nitride.

From Science Daily • May 9, 2024

Graphene was found to move slower in the liquid solution, possibly due to the fact that its layers are thinner and more flexible than hexagonal boron nitride, giving rise to more friction.

From Science Daily • Feb. 1, 2024

Prof Chen and his colleagues have found that they can use this to store gases including hydrogen in boron nitride powder.

From BBC • Nov. 7, 2022

Next, the researchers added tiny flakes of boron nitride, which flow easily and help fill any spaces between the metal oxides as the glass forms.

From Science Magazine • Jan. 6, 2022

This, says Geim, is what graphene could provide — as could, the team reports, another atomically thin sheet made of boron nitride.

From Nature • Nov. 26, 2014