KHfCuS3 — Properties & Data | MatWorld

KHfCuS3

metal

· KHfCuS3

KHfCuS3 is a ternary metal sulfide compound containing potassium, hafnium, and copper. This is a research-phase material rather than an established engineering alloy; it belongs to the family of transition metal chalcogenides, which are of growing interest for electronic, photonic, and catalytic applications due to their tunable band structures and mixed-valence chemistry. The combination of a refractory metal (hafnium) with copper and sulfur suggests potential utility in high-temperature applications, catalysis, or as a precursor for functional ceramics or semiconductors, though industrial deployment remains limited to specialized research contexts.

research and developmentcatalytic materialshigh-temperature compoundsfunctional ceramicselectronic materialsthin-film deposition

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	51.41	GPa	DFT · OptB88vdW
Poisson's Ratio(ν)	0.2300	-	DFT · OptB88vdW
Shear Modulus(G)	34.13	GPa	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	4.959	kg/m³	DFT · OptB88vdW

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Method

Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)2 entries	0.8070	eV	DFT · OptB88vdW
↳	1.148	eV	DFT · TBmBJ
Dielectric Constant (Relative Permittivity)(εr)	23.86 range 8.847–38.88median of 2 measurements	-	DFT · PBEsol
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries	8.329	-	DFT · OptB88vdW
↳	7.345	-	DFT · TBmBJ
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.00307	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.00163	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-239.8	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	188.4	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Spectroscopic Limited Maximum Efficiency (SLME)(SLME)	33.83	%	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.

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Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	0.000	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-1.402	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

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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.

KHfCuS3

Mechanical Properties

Physical Properties

Electrical Properties

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