BeReSi

ceramic

· JVASP-71248· BeReSi

BeReSi is a ceramic composite combining beryllium, rhenium, and silicon phases, designed to leverage the high-temperature stability and low density of beryllium-based systems with the refractory properties of rhenium and silicon carbide or silicate phases. This material represents research-stage development in ultra-high-temperature ceramic composites, targeting aerospace and defense applications where conventional superalloys reach their thermal limits. Engineers would consider BeReSi for extreme environments requiring exceptional thermal shock resistance and elevated-temperature strength, though material availability, cost, and manufacturing complexity currently limit its adoption compared to established alternatives like silicon carbide composites or nickel-based superalloys.

hypersonic vehicle structuresrocket engine componentshigh-temperature thermal protectionrefractory coatingsaerospace research applications

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	9.532	kg/m³	—

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

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

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

Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	0.5190	eV/atom	—
Formation Energy(ΔHf)	0.2804	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.

BeReSi

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental