Sr2HfO4 — Properties & Data | MatWorld

Sr2HfO4

ceramic

· Sr2HfO4

Sr2HfO4 is a strontium hafnate ceramic compound belonging to the pyrochlore or perovskite-related oxide family, combining alkaline-earth and refractory metal elements. This material is primarily studied for high-temperature structural applications and thermal barrier coatings, where its hafnium content provides excellent oxidation resistance and chemical stability at elevated temperatures. Sr2HfO4 is notable in aerospace and power generation research contexts as a candidate material for thermal protection systems and next-generation engine components where conventional alumina-based ceramics reach their performance limits.

thermal barrier coatingshigh-temperature structural ceramicsaerospace heat shieldsadvanced refractory materialsresearch-phase ceramics

Compliance & Regulations

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

Units:

si imperial

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Method

Property	Value	Unit	Conditions
Bulk Modulus(K)2 entries	123.4	GPa	DFT
↳	131.6	GPa	DFT · OptB88vdW
Poisson's Ratio(ν)	0.2600	-	DFT · OptB88vdW
Shear Modulus(G)2 entries	71.94	GPa	DFT
↳	78.24	GPa	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)	6.465	kg/m³	DFT · OptB88vdW

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

Property	Value	Unit	Conditions
Band Gap(Eg)	3.912	eV	DFT · OptB88vdW
Dielectric Constant (Relative Permittivity)(εr)	72.64	-	DFT · OptB88vdW
High-Frequency Dielectric Constant (ε∞)(ε∞)	4.076	-	DFT · OptB88vdW
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Piezoelectric Modulus(eij)	0.000	C/m²	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	0.01680	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-3.470	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.

Sr2HfO4

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental