Ceramic Lanthanum Hexaboride (LaB6) T SM

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Description

Lanthanum Hexaboride (LaB6 tube, also called lanthanum boride and LaB6 tube) is an inorganic chemical. With the melting point of 2528 K, LaB6 tube is a refractory ceramic material, which is insoluble in water or hydrochloric acid and very stable in vacuum.

This material data has been provided by Stanford Advanced Materials.

All metrics apply to room temperature unless otherwise stated. SI units used unless otherwise stated.
Equivalent standards are similar to one or more standards provided by the supplier. Some equivalent standards may be stricter whereas others may be outside the bounds of the original standard.

Ashby charts

Properties

General

PropertyTemperatureValueComment

Density

23.0 °C

4.72 g/cm³

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Mechanical

PropertyTemperatureValueComment

Flexural strength

23.0 °C

200 MPa

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Thermal

PropertyTemperatureValueComment

Coefficient of thermal expansion

23.0 °C

6.2E-6 1/K

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Melting point

2254 °C

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Thermal conductivity

23.0 °C

47 W/(m·K)

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Electrical

PropertyTemperatureValueComment

Electrical conductivity

23.0 °C

66500 S/m

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Electrical resistivity

23.0 °C

1.5E-8 Ω·m

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Technological properties

Property
Application areas

Thermionic emission (cathode), Plasma source for plasma enhanced coating(PECVD), Vacuum electron beam welding machine, Electron beam surface reforming device, Electron beam lithography device, Transmission electron microscope, Scanning electron microscope, Surface analysis device, Radiotherapy devices

Chemical composition

LaB6 (% min.) 99.9%, B(% min.) 31% - Impurities: Ce <120ppm, Fe <250ppm, Pr <150ppm, Si <100ppm, Nd <180ppm, Ca <90ppm, Sm <112ppm, C <300ppm, Y <250ppm, Mg <100ppm, Ti <100ppm

Crystal structure

Polycrystalline