He4 Si4 O8

ceramic

· He4 Si4 O8

He₄Si₄O₈ is a silicate ceramic compound with a framework structure composed of silicon and oxygen atoms with incorporated helium. This material is primarily of research interest rather than established industrial production, representing an experimental composition that bridges inert gas chemistry with oxide ceramics. Its potential applications lie in specialized thermal or radiation-resistant systems where the helium incorporation might provide unique properties such as low thermal conductivity or enhanced radiation stability.

experimental ceramics researchhigh-temperature insulation systemsradiation-resistant materialsthermal barrier coatings (research phase)nuclear or space applications (theoretical)

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Bulk Modulus(K)	53.84	GPa	—
Shear Modulus(G)	48.03	GPa	—

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

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	6.869	eV	—

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

Property	Value	Unit	Conditions	Source
Formation Energy(ΔHf)	-2.156	eV/atom	—

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

Regulatory Screening

Environmental

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.

He4 Si4 O8

Mechanical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental