HfCaO2S

ceramic

· HfCaO2S

HfCaO₂S is an experimental oxysulfide ceramic combining hafnium, calcium, oxygen, and sulfur elements. This material belongs to the mixed-anion ceramic family, where the simultaneous presence of oxide and sulfide ions can potentially yield unique combinations of thermal stability, electronic properties, and chemical resistance not available in conventional single-anion ceramics. Research into such hafnium-based oxysulfides is primarily driven by interest in advanced refractory applications, photocatalysis, and solid-state electronics, though this specific composition remains largely in the development stage and is not yet widely commercialized in mainstream engineering applications.

high-temperature refractories (exploratory)photocatalytic materials (research)solid-state electronics (developmental)thermal barrier coatings (potential)chemical-resistant coatings (conceptual)

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	0.000	eV	—
Magnetic Moment(μB)	0.02001	μB	—

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

Property	Value	Unit	Conditions	Source
Formation Energy(ΔHf)	1.560	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.

HfCaO2S

Electrical Properties

Other Properties

Regulatory Screening

Environmental