Al2SiO5
ceramic· Al2SiO5
Al2SiO5 is an alumina-silicate ceramic compound that exists in three polymorphic forms (sillimanite, kyanite, and andalusite), each with distinct crystal structures and property profiles. This material is valued in high-temperature and wear-resistant applications due to its thermal stability, hardness, and chemical inertness. The polymorphic variants allow engineers to select the form best suited to specific processing conditions and service environments, making Al2SiO5 a versatile choice for demanding thermal and mechanical applications where cost-effectiveness matters relative to pure alumina.
refractory linings and kiln furnitureabrasive grinding mediahigh-temperature ceramic compositeselectrical insulation at elevated temperaturefoundry mold and core bindersporcelain and advanced ceramics
Compliance & Regulations
?Conflict Free?RoHS?REACH?TSCA?Prop 65
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Bulk Modulus(K)2 entries | 20,488.6 | ksi | — | ||
| ↳ | 34,986 | ksi | — | ||
Poisson's Ratio(ν) | 0.2500 | - | — | ||
Shear Modulus(G)2 entries | 12,846.6 | ksi | — | ||
| ↳ | 21,304.6 | 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
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 0.1290 | lb/in³ | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg) | 5.923 | eV | — | ||
Magnetic Moment(μB) | 0.000 | µB | — | ||
Seebeck Coefficient(S) | -111.1 | µV/K | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Energy Above Hull(ΔEhull) | 0.000 | eV/atom | — | ||
Formation Energy(ΔHf)2 entries | -3.355 | eV/atom | — | ||
| ↳ | -3.170 | 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
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.