Manufacturing method of zinc oxide whiskers

Details Manufacturing method of zinc oxide whiskers Manufacturing method of zinc oxide whiskers

C - Chemistry, Metallurgy

01

G

23/266

C01G 9/03 (2006.01) C04B 35/81 (2006.01) C30B 25/00 (2006.01)

Patent

CA 2005737

The present invention provides a method for manufacturing zinc oxide whiskers having a crystalline body for industrial use. The method comprises placing zinc powder coated with an oxide film on the surface thereof on the bottom surface of a container, heating the zinc powder in an atmosphere containing oxygen thus generating zinc oxide whiskers. The container has one open surface opposite to the bottom surface and the side surfaces have apertures of 20% or more. This method allows for easy control over the size distribution and generating ratio of the zinc oxide whiskers.

La présente invention porte sur une méthode pour la production de whiskers d'oxyde de zinc à corps cristallin pour applications industrielles. La méthode consiste à placer une poudre de zinc nrobée à sa surface d'une pellicule d'oxyde sur la surface du fond d'un contenant, et à chauffer la poudre de zinc dans une atmosphère renfermant de l'oxygène, en formant ainsi les whiskers d'oxyde de zinc. Le contenant comporte une surface ouverte faisant face à la surface de fond, et les surfaces latérales ont des ouvertures de 20 % ou plus. Cette méthode permet de contrôler facilement la distribution granulométrique et le taux de production des whiskers d'oxyde de zinc.

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