O8 Si4 — Properties & Data | MatWorld

O8 Si4

ceramic

· O8 Si4

O8Si4 is an oxygen-silicon ceramic compound, likely representing an oxysilicate or silicate phase with a specific stoichiometric ratio. This material belongs to the family of advanced ceramics used in high-temperature and structural applications where thermal stability and mechanical integrity are critical. Silicon oxynitrides and silicates in this compositional range are employed in aerospace, automotive, and industrial thermal systems where they provide excellent oxidation resistance, thermal shock tolerance, and chemical stability in demanding environments.

high-temperature structural ceramicsaerospace engine componentsrefractory coatingsthermal barrier systemswear-resistant applicationsindustrial furnace linings

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	5.682	eV	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Formation Energy(ΔHf)	-2.879	eV/atom	DFT · OptB88vdW

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

Reference data from cited sources. Not verified or certified by MatWorld Inc. Verify against the source before use in design. Terms: engineering data

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.

O8 Si4

Electrical Properties

Other Properties

Regulatory Screening

Environmental