La1 B6

semiconductor

· La1 B6

LaB6 is a lanthanum hexaboride ceramic compound belonging to the rare-earth boride family, valued for its exceptional thermionic emission properties and electrical conductivity at high temperatures. It is primarily used in electron microscopy as a cathode material and in high-temperature heating elements, where it offers superior performance compared to tungsten filaments due to lower work function and longer operational life. The material is also investigated for specialized applications in vacuum electronics and thermal management systems where its thermal stability and electron emission characteristics provide distinct advantages over conventional refractory metals.

electron microscope cathodesthermionic emittershigh-temperature vacuum devicesscanning electron microscopy (SEM)transmission electron microscopy (TEM)specialized heating elements

Compliance & Regulations

?EAR?Conflict Free?RoHS?REACH?TSCA?Prop 65

Units:

si imperial

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	0.01530	eV	—

Verified Unverified Low confidence (<80%) Link to source

Property	Value	Unit	Conditions	Source
Formation Energy(ΔHf)	-0.5840	eV/atom	—

Verified Unverified Low confidence (<80%) Link to source

Regulatory Screening

Environmental

Export Control

RoHS, REACH, and Prop 65 statuses are validated against official substance lists (ECHA SVHC Candidate List, OEHHA Prop 65, RoHS Annex II). Other regulations are estimated from composition and material classification. All screening is a starting point for due diligence — always verify with your supplier before making compliance decisions.

La1 B6

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control