Tungsten Trioxide and β-Tungsten Oxide comparison

From tungsten trioxide particle morphology we know tungsten trioxides partial are denser. And it is bad for hydrogen enter particles interior during reduction process, and the interior water is not easily discharged. Based on the oxidation-reduction deposition growth mechanism, which will help tungsten powder particle to growth, thus tungsten trioxide is suitable for produce coarse particles of tungsten powder, which is the actual situation of our industrial production.

With the reduction processing, the oxygen and vacancies of tungsten trioxide increase then a tungsten trioxide crystal partial gradually transformed into a β- tungsten oxide crystal partial. β-tungsten oxide particle morphology has some different with tungsten oxide particle shape which isβ-tungsten oxide particle more coarse and there has some cracks. The cracks depends on reduction temperature, reduction time, the speed of push the boat, boat mounted volume, hydrogen flow rate, and hydrogen-way. These cracks is good for water discharge and hydrogen into the interior of the particle so than it can make further depth reduction, and it also good for produce fine tungsten powder.

Tungsten Manufacturer & Supplier: Chinatungsten Online - http://www.chinatungsten.com
Tel.: 86 592 5129696; Fax: 86 592 5129797
Email: sales@chinatungsten.com
Tungsten & Molybdenum Information Bank: http://i.chinatungsten.com
Tungsten News & Tungsten Prices, 3G Version: http://3g.chinatungsten.com
Molybdenum News & Molybdenum Price: http://news.molybdenum.com.cn

• < Prev
• Next >