Material Properties | Unit | AL-997 | AL-995 | Sedalox SD | Sedalox PLUS | Sedalox WS | AL-94 | AL-92 | AL-90 |
---|---|---|---|---|---|---|---|---|---|
Composition | % | 99.7% AL2O3 | 99.5% AL2O3 | 96% AL2O3 | 96% AL2O3 | 96% AL2O3 | 94% AL2O3 | 92% AL2O3 | 90% AL2O3 |
Density | g/cm2 | 3.90 | 3.89 | 3.68 | 3.74 | 3.75 | 3.69 | 3.60 | 3.60 |
Water absorption | % | 0.0 | 00. | <0.1 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
Bending strength | MPa | 380 | 375 | 255 | 320 | 345 | 330 | 295 | 220 |
Young's modulus | GPa | 380 | 375 | 340 | 340 | 340 | 300 | 280 | 275 |
Hardness Vickers | GPa | 1930 | 1440 | 1100 | 1200 | 1100 | 1175 | 1230 | 1270 |
Thermal coefficient of expansion (100ºC-800ºC) | 10º /K | 8.6 | 8.3 | 8.2 | 8.2 | 8.2 | 8.1 | 7.8 | 8.1 |
Heat capacity | J/Kg K | 1025 | 980 | 980 | 980 | 980 | 980 | 950 | 920 |
Thermalconductivity (20ºC) | W/m+K | 29 | 28 | 24 | 24 | 24 | 22 | 19 | 17 |
Dielectric strength | KV/mm | 12.0 | 8.7 | 8.3 | 8.3 | 8.3 | 8.3 | 8.6 | 8.3 |
Dielectric constant | 1MHz | 8.5-11.5 | 9.7 | 9.0 | 9.0 | 9.0 | 9.1 | 8.9 | 8.8 |
Volume resistivity | Ωm | >1014 | >1014 | >1014 | >1014 | >1014 | >1014 | >1014 | >1014 |
Maximum operating temperature | ºC | 1850 | 1750 | 1650 | 1650 | 1650 | 1650 | 1500 | 1050 |
Dry Pressing Standard Tolerance | ||
---|---|---|
Length and Width | mm | +- 1% |
Thickness | mm | +- 10% |
Hole diameter | < 2mm | +- 0.1 |
2 - 10 mm | +- 0.15 | |
> 10 mm | +- 1% | |
Radius and corner | mm | 0.3 |
Machining Standard Tolerance | ||
Thickness | mm | +- 0.05 |
Parallelism | mm | < 0.05 |
Flatness | mm | <0.0006 |
Roughness | mm | 0.15 +- 0.1 |
Contact
SEDAL BARCELONA (HEADQUARTERS)
Sedal S.L.U.
C/ De la Quimica, 2-12,
08740 Sant Andreu de la Barca, Barcelona, España
Tel.: +34 93 680 3300
Email: moc.lades@laicremmoc
SEDAL CERAMICS
Jiangmen Sedal Cetec Advanced Technical Ceramics Co.,Ltd.
Building 7 of Jiang-Mu Road 128, Jiangmen Hi-tech Industrial
Development Zone, Jiangmen City 529000, Guangdong Province, P.R.C.,
Tel: +86 750 369 7078 · Fax: +86 750 369 7070
Email: moc.scimareclades@selas