SiPt

metal
· SiPt

SiPt is an intermetallic compound combining silicon and platinum, belonging to the family of high-density metallic materials with ceramic-like stiffness characteristics. This material exhibits a unique combination of high elastic moduli and density, making it of interest in structural applications requiring exceptional rigidity and thermal stability. SiPt remains largely in the research and development phase, with potential applications in aerospace, high-temperature engineering, and specialized electronic or photonic device packaging where the extreme stiffness-to-weight considerations and platinum's chemical inertness provide distinct advantages over conventional alloys.

aerospace structural componentshigh-temperature applicationselectronic device packagingresearch intermetallicsprecision engineering componentsthermal management systems

Compliance & Regulations

?EAR?Conflict Free?RoHS?REACH?TSCA?Prop 65
PropertyValueUnitConditionsSource
Bulk Modulus(K)3 entries
25,263.4
ksi
25,263.4
ksi
15,537.9
ksi
Elastic Compliance Tensor(Sij)
Matrix (redacted)
1/GPa
Elastic Anisotropy(AU)
0.2984
-
Elastic Stiffness Tensor(Cij)
Matrix (redacted)
ksi
Poisson's Ratio(ν)2 entries
0.3235
-
0.3400
-
Shear Modulus(G)3 entries
10,108.7
ksi
10,108.7
ksi
1,815.9
ksi
N entriesMultiple entries per property — large groups are collapsed; click a summary row to expand. Use filters above to narrow by form / heat treatment / basis.
Verified Unverified Low confidence (<80%) Link to source
PropertyValueUnitConditionsSource
Density(ρ)
0.4286
lb/in³
Verified Unverified Low confidence (<80%) Link to source
PropertyValueUnitConditionsSource
Band Gap(Eg)
0.000
eV
Magnetic Moment(μB)
0.000
µB
Seebeck Coefficient(S)
-6.907
µV/K
Verified Unverified Low confidence (<80%) Link to source
PropertyValueUnitConditionsSource
Energy Above Hull(ΔEhull)
0.000
eV/atom
Formation Energy(ΔHf)3 entries
-0.6177
eV/atom
-0.5843
eV/atom
-0.6167
range -0.6177–-0.6156median of 2 measurements
eV/atom
N entriesMultiple entries per property — large groups are collapsed; click a summary row to expand. Use filters above to narrow by form / heat treatment / basis.
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.
SiPt — Properties & Data | MatWorld