TmH3O3

ceramic

· JVASP-30187· TmH3O3

TmH₃O₃ is an experimental rare-earth hydride oxide ceramic compound containing thulium, representing an understudied member of the lanthanide hydride oxide family. Research into rare-earth hydride ceramics is driven by the potential for novel ionic conductivity, thermal properties, and structural stability at elevated temperatures, though this specific compound remains largely in the laboratory phase with limited industrial deployment. Engineers evaluating this material should consider it primarily for advanced research applications rather than established manufacturing, pending further characterization and demonstration of processing scalability.

solid-state electrolyte researchhigh-temperature structural ceramicsrare-earth compound studiesionic conductor developmentmaterials science prototypingthermal barrier coating exploration

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	5,539	ksi	DFT · OptB88vdW
Poisson's Ratio(ν)	0.2800	-	DFT · OptB88vdW
Shear Modulus(G)	2,945.7	ksi	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	0.1798	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	3.822	eV	DFT · OptB88vdW
↳	6.161	eV	DFT · TBmBJ
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries	3.400	-	DFT · OptB88vdW
↳	2.774	-	DFT · TBmBJ
Electron Effective Mass(m*e)	0.5567	me	DFT · OptB88vdW · 27°C
Hole Effective Mass(m*h)	1.833	me	DFT · OptB88vdW · 27°C
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.000762	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.00117	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-131.5	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	262.8	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Spectroscopic Limited Maximum Efficiency (SLME)(SLME)	0.000	%	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

Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	0.04200	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-2.022	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.

TmH3O3 — Properties & Data | MatWorld

TmH3O3

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental