KAlSiO4 — Properties & Data | MatWorld

KAlSiO4

ceramic

· JVASP-10240· KAlSiO4

Potassium aluminum silicate (KAlSiO4) is a ceramic compound belonging to the feldspar family, commonly encountered as a mineral phase in silicate ceramics and refractories. It appears primarily in industrial applications requiring high-temperature stability and chemical resistance, particularly in refractory linings, kiln furniture, and ceramic thermal insulation systems where its silicate structure provides thermal shock resistance. Engineers select this phase in multi-component ceramic systems for its contribution to densification and mechanical integrity at elevated temperatures, making it relevant where prolonged exposure to thermal cycling or corrosive molten materials is expected.

refractory liningshigh-temperature kiln furniturethermal insulation ceramicsceramic matrix compositesmolten metal containmentglass production equipment

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	9,621.8	ksi	DFT · OptB88vdW
Poisson's Ratio(ν)	0.4000	-	DFT · OptB88vdW
Shear Modulus(G)	3,992.9	ksi	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	0.09234	lb/in³	DFT · OptB88vdW

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

Filter by

Method

Property	Value	Unit	Conditions
Band Gap(Eg)2 entries	4.683	eV	DFT · OptB88vdW
↳	7.474	eV	DFT · TBmBJ
Dielectric Constant (Relative Permittivity)(εr)	6.521	-	DFT · OptB88vdW
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries	2.512	-	DFT · OptB88vdW
↳	2.053	-	DFT · TBmBJ
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Piezoelectric Modulus(eij)	0.06542	C/m²	DFT · OptB88vdW
Spectroscopic Limited Maximum Efficiency (SLME)(SLME)	0.000	%	DFT · TBmBJ

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)	0.000500	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-2.977	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.

KAlSiO4

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental