Lanthanum Tungsten Electrode -Ⅰ

Lanthanum tungsten electrode (adding cerium oxide - La2O3 to tungsten) grade and standard

Grade

Color sign

Other impurities%

Tungsten %

dopant

Doping amount %

Electronic work function/ eV

WL20

Sky blue

<0.20%

The rest

La2O3

1.80~2.20

2.8~3.2

WL15

Golden

1.30~1.70

2.8~3.0

WL10

Black

0.80~1.20

2.6~2.7

Common specification
Grade --- WL10
Length (mm): 150/175
Diameter (mm): 0.5 / 2.0 / 3.0 / 4.0 / 4.8 / 6.0 / 8.0 / 12.0, etc.
Ingredients: tungsten, La2O3
Welding materials: stainless steel, carbon steel, aluminum, copper and the like.


 

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