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

See Examples For:

boron nitride

The researchers solved this by designing a plasmonic-excitonic heterostructure made with nanometer-thin boron nitride layers, which proved essential for revealing the newly identified dark excitons.

From Science Daily ● Nov. 19, 2025

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

From Science Daily ● May 9, 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

The powder samples were ground inside an Ar glovebox under faint red light and mixed with boron nitride as filler to obtain a concentration of 30 mg cm−2 of the product in the absorber.

From Nature ● Mar. 28, 2017