Cr4 Hf2

semiconductor

· Cr4 Hf2

Cr4Hf2 is an intermetallic compound belonging to the chromium-hafnium system, classified as a semiconductor material. This is a research-phase compound studied primarily for its potential in high-temperature structural and electronic applications, leveraging hafnium's exceptional refractory properties and chromium's solid-solution strengthening effects. The material represents an exploratory composition within the broader family of transition-metal intermetallics, which are of interest for advanced aerospace and energy systems where conventional alloys reach thermal or mechanical limits.

high-temperature structural materials (research)refractory intermetallicsaerospace/defense applications (developmental)semiconductor/electronic device researchextreme-environment materialsMaterials science/metallurgy development

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Bulk Modulus(K)	195.1	GPa	—
Shear Modulus(G)	59.42	GPa	—

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

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	0.02870	eV	—

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

Property	Value	Unit	Conditions	Source
Formation Energy(ΔHf)	-0.1120	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.

Cr4 Hf2

Mechanical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control