SiB

ceramic

· JVASP-37211· SiB

Silicon boride (SiB) is a ceramic compound combining silicon and boron, belonging to the family of advanced ceramics and refractory materials. It is valued in high-temperature and wear-resistant applications where conventional ceramics fall short, particularly in aerospace, metallurgical, and abrasive industries. SiB's combination of thermal stability, hardness, and chemical inertness makes it an attractive alternative to alumina and silicon carbide in demanding environments, though its commercial availability and processing characteristics differ from more established ceramic families.

refractory liningshigh-temperature wear protectionaerospace componentsabrasive applicationsmetallurgical cruciblescutting tool inserts

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Bulk Modulus(K)	17,069.5	ksi	DFT · OptB88vdW
Shear Modulus(G)	8,561.6	ksi	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	0.08978	lb/in³	DFT · OptB88vdW

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

Filter by

Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)	0.000	eV	DFT · OptB88vdW
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.000546	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.000541	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	8.197	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	8.140	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)	0.3905	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	0.3607	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.

SiB — Properties & Data | MatWorld

SiB

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental