HfAs2 — Properties & Data | MatWorld

HfAs2

Name: HfAs2
Brand: MatWorld

ceramic

· HfAs2

HfAs2 is an intermetallic ceramic compound combining hafnium and arsenic, belonging to the class of refractory ceramics with potential semiconductor or thermal management properties. This material exists primarily in research and development contexts rather than widespread industrial use; it is of interest to materials scientists studying high-temperature compounds and narrow-band semiconductors. Engineers would consider HfAs2 primarily for exploratory applications in extreme thermal environments or specialized electronic devices where the chemical stability and density characteristics of hafnium arsenides offer advantages over conventional alternatives.

high-temperature ceramics (research)refractory compoundssemiconductor researchthermal barrier materials (experimental)aerospace thermal protection (advanced development)materials characterization studies

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Bulk Modulus(K)	16,640.3	ksi	DFT
Shear Modulus(G)	10,846.7	ksi	DFT

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

Property	Value	Unit	Conditions	Source
Density(ρ)	0.3433	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	0.00111	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.00119	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-5.500	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	6.267	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

Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	0.000	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-0.7494	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.

HfAs2

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental