Boron nitride

Boron nitride is a chemical compound consisting of boron (B) and nitrogen (N) atoms. It exhibits excellent thermal conductivity and electrical insulation, so that it is widely used as filler in heat dissipation resin sheets and heat dissipation substrates. Thanks to its characteristics of smooth touch feeling and transparency, other applications such as ingredient in cosmetics are also being developed.

The new aluminum nitride filler

Unique characteristics of Tokuyama's boron nitride

In contrast to flaky and thin plate structure of typical boron nitride particle, Tokuyama's boron nitride particle has a feature of thicker shape which makes it suitable for filler, and also it is extremely  high purity. "Carbo-thermal-reduction and nitridation (CRN) method" is the original method of Tokuyama. Boron nitride with thicker particle, which exhibits excellent properties as filler, is fabricated by the CRN method.

Unique characteristics of Tokuyama's boron nitride

Thermal conductivity when boron nitride is used as filler

Tokuyama's boron nitride shows higher thermal conductivity value due to its thicker particle shape, even if filling volume level to resin is low.

Thermal conductivity when boron nitride is used as filler

Thermal conductivity when boron nitride is used as filler

Inquiries Concerning Developed products

Advanced Materials Development Dept.

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