HfH4C4O4
ceramic· JVASP-112154· HfH4C4O4
HfH₄C₄O₄ is an oxycarbide ceramic compound containing hafnium, hydrogen, carbon, and oxygen—a complex mixed-phase material that sits at the intersection of refractory ceramics and functional oxides. This appears to be a research-phase composition rather than an established commercial material; compounds in this family are investigated for extreme-environment applications where thermal stability, oxidation resistance, and hardness are critical, particularly in aerospace and high-temperature structural contexts where traditional carbides or oxides alone prove insufficient.
High-temperature structural ceramicsAerospace thermal protectionRefractory coatingsOxidation-resistant materialsResearch/development phaseExtreme environment applications
Compliance & Regulations
?Conflict Free?RoHS?REACH?TSCA?Prop 65
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | — | lb/in³ | — | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg) | — | eV | — | — | |
Magnetic Moment(μB) | — | µB | — | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Energy Above Hull(ΔEhull) | — | eV/atom | — | — | |
Formation Energy(ΔHf) | — | 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.