Ni5Si2

metal

· Ni5Si2

Ni5Si2 is an intermetallic compound in the nickel-silicon system, characterized by a defined crystalline structure with nickel and silicon in a 5:2 stoichiometric ratio. This material is primarily of research and development interest for high-temperature applications, where its ordered intermetallic structure offers potential for enhanced strength and creep resistance compared to conventional nickel alloys. Ni5Si2 and related nickel silicides are investigated as matrix phases or reinforcement candidates in advanced composites and superalloys, though industrial adoption remains limited; engineers would consider this material for cutting-edge thermal applications where experimental materials with superior high-temperature performance justify development and validation efforts.

High-temperature structural materialsAdvanced aerospace engine componentsIntermetallic matrix compositesMaterials research and developmentCreep-resistant applicationsEmerging superalloy systems

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Formation Energy(ΔHf)	-0.4674	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.

Ni5Si2

Other Properties

Regulatory Screening

Environmental

Export Control