HfSnPd — Properties & Data | MatWorld

HfSnPd

Name: HfSnPd
Brand: MatWorld

ceramic

· HfSnPd

HfSnPd is an intermetallic ceramic compound combining hafnium, tin, and palladium—a high-density material belonging to the family of refractory intermetallics being explored for extreme-environment applications. While primarily a research material rather than an established commercial compound, this composition targets aerospace and high-temperature structural applications where conventional ceramics and superalloys reach performance limits. The material's appeal lies in combining the thermal stability of hafnium-based systems with potential improvements in damage tolerance and workability offered by palladium and tin additions, positioning it as a candidate for next-generation propulsion systems and thermal protection where weight, strength, and oxidation resistance must coexist.

aerospace propulsion systemshigh-temperature structural componentsthermal protection systemsrefractory intermetallics researchextreme-environment applicationsadvanced engine materials

Compliance & Regulations

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

Units:

si imperial

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Method

Property	Value	Unit	Conditions
Bulk Modulus(K)3 entries	17,757.5	ksi	DFT
↳	18,492.3	ksi	DFT · OptB88vdW
↳	17,757.5	ksi	DFT · PBE
Elastic Compliance Tensor(Sij)	Matrix (redacted)	1/GPa	DFT · PBE
Elastic Anisotropy(AU)	0.1799	-	DFT · PBE
Elastic Stiffness Tensor(Cij)	Matrix (redacted)	ksi	DFT · PBE
Poisson's Ratio(ν)2 entries	0.3100	-	DFT · OptB88vdW
↳	0.2965	-	DFT · PBE
Shear Modulus(G)3 entries	8,362.1	ksi	DFT
↳	8,302	ksi	DFT · OptB88vdW
↳	8,362.1	ksi	DFT · PBE

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)	0.3789	lb/in³	DFT · OptB88vdW

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

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Method

Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)2 entries	0.4090	eV	DFT · OptB88vdW
↳	0.3850	eV	DFT · TBmBJ
Dielectric Constant (Relative Permittivity)(εr)3 entries	24.09	-	DFT · OptB88vdW
↳	23.92	-	DFT · PBE
↳	21.31 range 19.29–23.33median of 2 measurements	-	DFT · PBEsol
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries	20.89	-	DFT · OptB88vdW
↳	19.56	-	DFT · TBmBJ
Electronic Dielectric Tensor(ε∞)	Matrix (redacted)	-	DFT · PBE
Total Dielectric Tensor(ε)	Matrix (redacted)	-	DFT · PBE
Electron Effective Mass(m*e)	0.1400	me	DFT · OptB88vdW · 27°C
Hole Effective Mass(m*h)	0.1500	me	DFT · OptB88vdW · 27°C
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Piezoelectric Modulus(eij)2 entries	0.01371	C/m²	DFT · OptB88vdW
↳	0.03896	C/m²	DFT · PBE
Piezoelectric Stress Tensor(eij)	Matrix (redacted)	C/m²	DFT · PBE
Thermoelectric Power Factor(PF)2 entries	0.00285	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.00312	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-245	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	290.2	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Spectroscopic Limited Maximum Efficiency (SLME)(SLME)	9.260	%	DFT · TBmBJ

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

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Method

Property	Value	Unit	Conditions
Energy Above Hull(ΔEhull)	0.000	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)2 entries	-0.7008	eV/atom	DFT · OptB88vdW
↳	-0.7089	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

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.

HfSnPd

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental