CaSi2 — Properties & Data | MatWorld

CaSi2

ceramic

· CaSi2

Calcium silicide (CaSi₂) is an intermetallic ceramic compound that combines calcium and silicon, forming a brittle ceramic material with moderate stiffness. It is primarily used as a deoxidizer and desulfurizer in steel production, where it removes oxygen and sulfur impurities during metallurgical processing; additionally, it finds application in specialty alloy development and as a precursor material in silicon-based ceramic synthesis. Engineers select CaSi₂ for high-temperature metallurgical operations where its chemical reactivity and moderate mechanical properties enable cost-effective purification of molten metals, though its brittle nature limits structural applications compared to tougher ceramic alternatives.

steel desulfurizationmetallurgical deoxidizerspecialty alloy additiveshigh-temperature processingceramic precursorsmolten metal treatment

Compliance & Regulations

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

Units:

si imperial

Filter by

Method

Property	Value	Unit	Conditions
Bulk Modulus(K)3 entries	8,656.3	ksi	DFT
↳	9,340.4	ksi	DFT · OptB88vdW
↳	9,023.3	ksi	DFT · PBE
Elastic Compliance Tensor(Sij)	Matrix (redacted)	1/GPa	DFT · PBE
Elastic Anisotropy(AU)	0.09005	-	DFT · PBE
Elastic Stiffness Tensor(Cij)	Matrix (redacted)	ksi	DFT · PBE
Poisson's Ratio(ν)2 entries	0.1994	-	DFT · PBE
↳	0.2500	-	DFT · OptB88vdW
Shear Modulus(G)3 entries	6,784.5	ksi	DFT · PBE
↳	5,013	ksi	DFT
↳	5,905.9	ksi	DFT · OptB88vdW

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, or test environment.

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Property	Value	Unit	Conditions	Source
Density(ρ)	0.08718	lb/in³	DFT · OptB88vdW

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Method

Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)2 entries	0.000	eV	DFT · OptB88vdW
↳	0.000	eV	DFT · TBmBJ
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.00369	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.00309	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-61.34	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	-58.97	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C

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, or test environment.

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

Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	0.000	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-0.4270	eV/atom	DFT · OptB88vdW

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

Reference data from cited sources. Not verified or certified by MatWorld Inc. Verify against the source before use in design. Terms: engineering data

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.

CaSi2

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental