ZrSi2

Name: ZrSi2
Brand: MatWorld

metal

· ZrSi2

Zirconium disilicide (ZrSi₂) is an intermetallic compound that belongs to the refractory metal silicide family, valued for its high-temperature strength and oxidation resistance. It is primarily used in extreme thermal environments where conventional alloys fail, particularly in aerospace propulsion systems, high-temperature structural applications, and ceramic matrix composites. Engineers select ZrSi₂ when weight efficiency and thermal performance are critical, as it maintains significant stiffness at temperatures exceeding 1000°C while offering superior oxidation protection compared to many competing silicides—though its brittleness at lower temperatures typically restricts it to specialized high-heat applications rather than general-purpose engineering.

aerospace turbine componentshigh-temperature coatingsceramic matrix compositesrefractory structural applicationshypersonic vehicle thermal protectionadvanced propulsion systems

Compliance & Regulations

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

Units:

si imperial

Filter by

Method

Property	Value	Unit	Conditions
Bulk Modulus(K)2 entries	18,083.4	ksi	DFT
↳	17,800.5	ksi	DFT · OptB88vdW
Poisson's Ratio(ν)	0.2000	-	DFT · OptB88vdW
Shear Modulus(G)2 entries	13,798.8	ksi	DFT
↳	13,540.7	ksi	DFT · OptB88vdW

N entriesMultiple entries per property — large groups are collapsed; click a summary row to expand. Use filters above to narrow by form, heat treatment, basis, or test environment.

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

Property	Value	Unit	Conditions	Source
Density(ρ)	0.1717	lb/in³	DFT · OptB88vdW

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

Filter by

Method

Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)2 entries	0.000	eV	DFT · OptB88vdW
↳	0.000	eV	Measured
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.00333	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.00349	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-35.84	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	-37.22	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C

N entriesMultiple entries per property — large groups are collapsed; click a summary row to expand. Use filters above to narrow by form, heat treatment, basis, or test environment.

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

Filter by

Method

Property	Value	Unit	Conditions
Energy Above Hull(ΔEhull)	0.000	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)2 entries	-0.5907	eV/atom	DFT · OptB88vdW
↳	-0.6250	eV/atom	Measured

N entriesMultiple entries per property — large groups are collapsed; click a summary row to expand. Use filters above to narrow by form, heat treatment, basis, or test environment.

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

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.

ZrSi2 — Properties & Data | MatWorld

ZrSi2

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control