Tungsten Lanthanum Oxide (WL10) Ground Rod

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Description

Tungsten is doped with between 1.0 and 2.0 percent of lanthanum oxide (La₂O₃) by weight in order to improve its creep resistance and increase the recrystallization temperature. WL is also easier to machine due to the finely distributed oxide particles in its structure. The electron work function of tungsten-lanthanum oxide is significantly lower than that of pure tungsten.

Los datos sobre este material han sido proporcionados por Plansee.

A menos que se indique lo contrario, todas las medidas corresponden a condiciones de temperatura ambiente. A menos que se indique lo contrario, se utilizan las unidades del SI.
Las normas armonizadas son similares a uno o varios estándares del proveedor. Es posible que algunas normas armonizadas se ajusten al estándar original, mientras que otras pueden quedar fuera de su alcance.

Ashby charts

Propiedades

General

PropertyTemperatureValue

Densidad

23.0 °C

18.75 - 18.85 g/cm³

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Rugosidad superficial

1 μm

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Medidas

PropertyValue

Diámetro

3.5 - 20 mm

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Longitud

300 - 1600 mm

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Dimensions

Available dimensions (diameter x length, mm x mm): 3.5 x 500-1524; 4.5 x 500-1524; 5.5 x 500-1524; 6.5 x 500-1524; 7 x 500-1524; 7.5 x 500-1524; 8.5 x 500-1524; 12.7 x 300-1524; 20 x 300-1600

Mecánica

PropertyTemperatureValue

Dureza Vickers 30

23.0 °C

400 - 420 [-]

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Chemical properties

PropertyValueComment

Aluminio

1E-4 %

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Cadmio

1E-4 %

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Carbono

6E-4 %

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Cobre

1E-4 %

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Cromo

3E-4 %

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Hierro

8E-4 %

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Lantano

0.77 - 0.94 %

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as La

Molibdeno

1.2E-3 %

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Nitrógeno

1E-4 %

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Níquel

2E-4 %

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Otro

0.9 - 1.1 %

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as La₂O₃

Plomo

1E-4 %

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Potasio

1E-4 %

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Silicona

1E-4 %

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Wolframio

balance

Technological properties

Property
Application areas

WL is a popular choice for ion sources, lamp electrodes and welding electrodes.