technical ceramic solutions

LaB6 Ceramics Parts

LaB6 ceramic is an inorganic compound classified as a boride. This refractory ceramic material boasts a distinctive deep purple appearance and possesses an impressively high melting point of 2210°C. Additionally, it exhibits insolubility in both water and hydrochloric acid. Interestingly, when subjected to ion bombardment, its physical characteristics undergo a change, resulting in a green coloration instead of its typical dark purple hue.

The unique properties of LaB6 crystals make them exceptionally suited for use as stable electron-emitting media with work functions close to 2.70 eV. This low work function leads to the generation of higher electron currents at lower cathode temperatures compared to tungsten, resulting in greater brightness at the beam focus and an extended operational lifespan. In practice, LaB6 cathodes often demonstrate brightness levels ten times higher and a service life fifty times longer than tungsten cathodes. In electron microscopy applications, these advantages translate into the delivery of more precise beam currents focused on smaller sample areas, improved resolution, and reduced frequency of cathode replacement.

LaB6 ceramic finds wide-ranging applications, including:

1. Thermionic emission (cathode)
2. Applied in scanning electron microscopes
3. Utilized in surface analysis equipment
4. Serving as a plasma source for plasma-enhanced coating (PECVD)
5. Utilized in transmission electron microscopes
6. Used in radiotherapy devices
7. Utilization in vacuum electron beam welding machines
8. Implementation in devices for electron beam surface reforming
9. Employed in electron beam lithography devices

Lanthanum Hexaboride (LaB6) Ceramics Parts

LaB6 ceramic Properties:

Properties Unit LaB6
Purity % >99.5
Density g/cm3 >4.30
Structure / Monocrystalline
Vickers hardness HV 1065
Shore hardness HS HS
Thermal conductivity W/mK 15
Electrical Conductivity S/m 1.83*10^6
Flexural strength MPa 165

Related Products

  • TO-220 Ceramic Insulator Cooling Pads

    TO-220 Ceramic Insulator Cooling Pads

    Innovacera TO-220 Ceramic Insulators were to be mounted between the TO-220 packaged power transistors and the heatsink, its dimensions is 14 x 20 x 1 mm (0.55 x 0.79 x 0.04in), the Mounting hole diame…

  • Alumina Ceramic Insulating Sheet & Aluminum Nitride Ceramic Insulating Sheet

    TO 247 Ceramic Insulating Sheet

    Innovacera TO-247 Ceramic Insulating Sheet is designed to optimize thermal management in discrete semiconductors, including MOSFETs, IGBTs, and transistors. TO-247 Ceramic Insulating Sheet is a high-p…

  • Silicon nitride grinding ball

    Silicon Nitride Grinding Media Balls

    Innovacera Silicon Nitride Grinding Media Balls was made by 3 forming way: titration, roll and CIP (cold isostatic pressing ) forming and they were gas pressing sinetering in 1800~2100℃.The purity of …

Enquiry