Zr4Al11Si

metal

· JVASP-121852· Zr4Al11Si

Zr₄Al₁₁Si is an intermetallic compound combining zirconium, aluminum, and silicon, belonging to the family of lightweight refractory alloys. This material is primarily of research and development interest rather than established production, explored for high-temperature structural applications where thermal stability and low density are simultaneously valued. The addition of silicon to zirconium-aluminum systems aims to improve oxidation resistance and creep strength, making it a candidate for aerospace propulsion systems, thermal barriers, and advanced composites requiring materials that retain strength at elevated temperatures.

aerospace propulsion componentshigh-temperature structural applicationsceramic composite reinforcementthermal barrier coatings (research phase)refractory metallurgies

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	4.134	kg/m³	—

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

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	0.000	eV	—
Magnetic Moment(μB)	0.000	µB	—

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

Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	0.01000	eV/atom	—
Formation Energy(ΔHf)	-0.4802	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.

Zr4Al11Si

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control