GdB6

semiconductor

· GdB6

Gadolinium hexaboride (GdB6) is a rare-earth boride ceramic compound belonging to the hexaboride family of materials, characterized by a cubic crystal structure with strong metallic bonding properties. It is primarily investigated as a thermionic cathode material and electron emitter for vacuum electronics applications, where its low work function and high electron emission efficiency make it a research focus for improving upon conventional tungsten and lanthanum hexaboride emitters. GdB6 is largely an emerging/experimental material in specialized vacuum electronics and plasma physics contexts rather than a mature production material, representing part of the broader effort to develop improved refractory cathode materials for electron guns, mass spectrometers, and high-energy physics instrumentation.

thermionic cathodeselectron emittersvacuum electronicsfield emission sourceshigh-temperature refractory materialsresearch instrumentation

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	3.600	eV	—

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.

GdB6

Electrical Properties

Regulatory Screening

Environmental

Export Control