Si12HN8 — Properties & Data | MatWorld

Si12HN8

ceramic

· JVASP-38533· Si12HN8

Si₁₂HN₈ is a silicon-based ceramic compound belonging to the sialon family (silicon aluminum oxynitride derivatives), designed to combine silicon nitride's thermal stability with enhanced hardness and oxidation resistance. This material is primarily evaluated for high-temperature structural applications in aerospace and automotive sectors where thermal shock resistance and mechanical strength at elevated temperatures are critical, making it a candidate alternative to conventional alumina and silicon carbide ceramics where improved toughness or specific wear characteristics are needed.

high-temperature structural componentsceramic cutting toolsturbine engine componentsautomotive thermal barrierswear-resistant bearingsaerospace heat shields

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	0.08902	lb/in³	DFT · OptB88vdW

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

Property	Value	Unit	Conditions
Band Gap(Eg)	0.1290	eV	DFT · OptB88vdW
High-Frequency Dielectric Constant (ε∞)(ε∞)	7.165	-	DFT · OptB88vdW
Magnetic Moment(μB)	0.9960	µB	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	0.3909	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-0.4055	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.

Si12HN8

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental