Er2 B4 C4

semiconductor

· Er2 B4 C4

Er₂B₄C₄ is a ternary ceramic compound combining erbium, boron, and carbon, belonging to the family of rare-earth boron carbides. This is a research-phase material studied primarily for ultra-high-temperature structural applications where its thermal stability, hardness, and potential for oxidation resistance at extreme temperatures are of interest. Industrial adoption remains limited; the material is mainly explored in aerospace and defense contexts for thermal protection systems and advanced refractory components, though competing materials like silicon carbide and hafnium carbide currently dominate commercial high-temperature markets.

aerospace thermal protectionultra-high-temperature ceramicsrefractory liningshypersonic vehicle componentsresearch and development

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	0.00420	eV	—

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

Property	Value	Unit	Conditions	Source
Formation Energy(ΔHf)	-0.5180	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.

Er2 B4 C4

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control