The doping process for cleaned tungsten wire is typically carried out during the tungsten powder preparation stage. The specific steps are as follows:
- Dopant Selection: Select dopants based on the application (e.g., K₂SiO₃, Al₂O₃, ThO₂, La₂O₃, etc.).
- Solution Doping:
- Dissolve the dopant in water or acid to form a uniform solution.
- Mix the solution with tungsten trioxide or tungstate to ensure even distribution of the dopant.
- Drying and Reduction:
- Dry the doped mixture to form doped WO₃.
- Reduce it to doped tungsten powder in a hydrogen atmosphere.
- Powder Mixing: If the dopant is added in solid form, mix it with tungsten powder using high-energy ball milling or a powder mixer.
- Dopant Content Control: Dopant content is typically 0.1–2 wt% and must be precisely controlled to avoid excessive amounts that could impair performance.
More details of tungsten wire, please visit website: http://www.tungsten-wire.com.cn/
Please contact CHINATUNGSTEN for inquiry and order of tungsten wire:
Email: sales@chinatungsten.com
Tel.: +86 592 5129595
