HfSiRh

ceramic

· HfSiRh

HfSiRh is an experimental ternary ceramic compound combining hafnium, silicon, and rhodium elements, likely developed for ultra-high-temperature structural applications. This material represents research into advanced refractory ceramics that leverage the thermal stability of hafnium and silicon carbide systems while incorporating rhodium for enhanced mechanical performance and oxidation resistance. Such ternary systems are investigated primarily for aerospace and energy applications where conventional superalloys and single-phase ceramics reach performance limits.

aerospace engine componentshigh-temperature structural ceramicsrefractory applicationsexperimental advanced materialsthermal barrier systemsoxidation-resistant coatings

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	27,515.6	ksi	DFT
↳	27,610.8	ksi	DFT · OptB88vdW
↳	27,508.8	ksi	DFT · PBE
Elastic Compliance Tensor(Sij)	Matrix (redacted)	1/GPa	DFT · PBE
Elastic Anisotropy(AU)	0.1965	-	DFT · PBE
Elastic Stiffness Tensor(Cij)	Matrix (redacted)	ksi	DFT · PBE
Poisson's Ratio(ν)2 entries	0.2900	-	DFT · OptB88vdW
↳	0.2818	-	DFT · PBE
Shear Modulus(G)3 entries	14,112.2	ksi	DFT
↳	13,752.5	ksi	DFT · OptB88vdW
↳	14,046.7	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)	0.3892	lb/in³	DFT · OptB88vdW

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

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Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)	0.000	eV	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.0000609	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.0000520	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	6.493	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	5.903	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)	-0.9971	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.

HfSiRh — Properties & Data | MatWorld

HfSiRh

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental