Be5 Au1

semiconductor

· Be5 Au1

Be₅Au₁ is an intermetallic compound combining beryllium and gold in a 5:1 atomic ratio, representing a hard ceramic-like metallic phase rather than a conventional alloy. This material is primarily of research and specialized industrial interest, studied for its extreme hardness and potential thermal properties where the high melting point of beryllium and noble metal stability of gold could be advantageous. Engineering consideration of Be₅Au₁ remains limited due to beryllium's toxicity hazards during processing, scarcity, and cost, making it relevant only in high-performance niche applications or fundamental materials research rather than mainstream engineering.

intermetallic compounds researchhigh-hardness coatings (experimental)aerospace thermal barrier studieswear-resistant surfaces (R&D phase)materials science investigation

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	0.00960	eV	—

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

Property	Value	Unit	Conditions	Source
Formation Energy(ΔHf)	-0.07500	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.

Be5 Au1

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control