TaHO3

ceramic

· JVASP-59247· TaHO3

TaHO₃ is a tantalum-based oxide ceramic compound that combines tantalum's high refractory character with oxygen and hydrogen chemistry. This material is primarily of research and specialized industrial interest, particularly in applications requiring high-temperature stability, chemical inertness, and radiation resistance typical of tantalum oxide families. The tantalum oxide ceramic class has proven valuable in capacitors, optical coatings, and high-performance electronic devices where corrosion resistance and thermal stability are critical.

high-temperature ceramicselectronic capacitorsoptical coatingsradiation-resistant materialsrefractory applicationsresearch compounds

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	0.1802	lb/in³	DFT · OptB88vdW

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Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)	2.814	eV	DFT · OptB88vdW
High-Frequency Dielectric Constant (ε∞)(ε∞)	4.098	-	DFT · OptB88vdW
Electron Effective Mass(m*e)	0.7300	me	DFT · OptB88vdW · 27°C
Hole Effective Mass(m*h)	2.820	me	DFT · OptB88vdW · 27°C
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.000946	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.00156	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-173.3	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	387.7	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.

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Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	0.1076	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-2.321	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.

TaHO3 — Properties & Data | MatWorld

TaHO3

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental