Lanthanum Hexaboride (LaB6) Cathode Rod & Emission Blank

LaB6 Rod for Thermionic Cathode Applications

In high-end electron microscopy and ion source systems, cathode material condition can affect emission stability and component service behavior. Because of its low work function and suitability for thermionic emission applications, a high-purity LaB6 rod is commonly used in electron source assemblies. Telite Ceramics supplies dense hot-pressed LaB6 rod components for vacuum and cathode-related applications where structural consistency and machining condition are important.

1. Hot Pressing Densification for Vacuum Applications

Conventional polycrystalline sintering may leave residual porosity that can affect material consistency during use. Our hot-pressing process is used to produce dense Lanthanum Hexaboride cathode blank components for vacuum systems and electron source assemblies. During material selection, density level, internal structure, and machining stage are commonly considered for cathode-related applications.

2. Precision Grinding and Dimensional Control

The success of cathode assembly often depends on dimensional consistency and matching accuracy. Telite Ceramics uses grinding and CNC machining processes to control outer diameter, length, concentricity, and surface condition. Whether you require a standard filament support or a custom LaB6 thermionic emitter, machining details can be reviewed according to drawing requirements and installation conditions.

3. Custom Fabrication for Structural Features

We support customization for vacuum components, electron gun cathode supports, and related structural ceramic or boride parts. From straight rods to a custom LaB6 machined rod with stepped diameters, counterbores, or precision chamfers, products can be supplied according to actual application requirements. Cleaning, inspection, and dimensional review can also be arranged according to project needs before shipment.