Zr4 H4
semiconductor· Zr4 H4
Zr₄H₄ is a zirconium hydride compound—a brittle intermetallic phase formed when zirconium absorbs hydrogen. This material is primarily encountered in zirconium metallurgy rather than as a deliberately engineered material; its formation represents a degradation pathway in zirconium and zirconium alloys when exposed to hydrogen-rich environments. Engineers monitor and control Zr₄H₄ precipitation because it embrittles otherwise ductile zirconium alloys, making it a critical failure mechanism in nuclear reactor cores, high-pressure hydrogen vessels, and aerospace structures where both materials must interface.
nuclear fuel cladding (failure/degradation monitoring)hydrogen embrittlement preventionzirconium alloy processinghigh-pressure hydrogen containmentmaterials failure analysis
Compliance & Regulations
?EAR?Conflict Free?RoHS?REACH?TSCA?Prop 65
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg) | — | eV | — | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Formation Energy(ΔHf) | — | eV/atom | — | — |
Verified Unverified Low confidence (<80%) Link to source
Regulatory Screening
Environmental
Export Control
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.