Ca4 Hf4 O12

ceramic

· Ca4 Hf4 O12

Ca4Hf4O12 is a complex oxide ceramic compound combining calcium and hafnium oxides, representing a high-temperature ceramic material in the hafnate family. This material is primarily of research and development interest for extreme thermal and mechanical applications, as hafnium-containing oxides are valued for their outstanding refractory properties and stability at elevated temperatures. Engineers consider such materials for applications requiring exceptional thermal shock resistance, chemical inertness, and structural integrity in harsh environments where conventional ceramics would degrade.

High-temperature refractory applicationsThermal barrier coatingsNuclear reactor componentsAerospace thermal protection systemsAdvanced ceramic researchExtreme environment structural materials

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Bulk Modulus(K)	24,258.4	ksi	—
Shear Modulus(G)	14,328.7	ksi	—

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

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	4.568	eV	—

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

Property	Value	Unit	Conditions	Source
Formation Energy(ΔHf)	-3.680	eV/atom	—

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.

Ca4 Hf4 O12

Mechanical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental