HfSiO3

ceramic

· HfSiO3

HfSiO3 is a hafnium silicate ceramic compound that combines the refractory properties of hafnium oxide with the structural stability of silicates, forming an advanced oxide ceramic material. This compound is primarily investigated in thermal barrier coating (TBC) systems and high-temperature structural applications where extreme heat resistance and chemical stability are required. Hafnium silicates offer advantages over conventional yttria-stabilized zirconia in ultra-high-temperature environments, particularly in aerospace and power generation sectors, though HfSiO3 remains largely in the research and development phase for most industrial applications.

thermal barrier coatingsaerospace turbine componentshigh-temperature oxidation protectionrefractory ceramicspower generation applicationsadvanced composite systems

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions
Band Gap(Eg)	0.000	eV	—
Magnetic Moment(μB)2 entries	0.09700	μB	—
↳	-0.6019	μB	—

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
Formation Energy(ΔHf)2 entries	-1.854	eV/atom	—
↳	1.380	eV/atom	—

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

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.

HfSiO3

Electrical Properties

Other Properties

Regulatory Screening

Environmental