 | ||
| CONTENTS |
| ·TOP |
| PROPERTIES | UNIT & VALUE | |
|---|---|---|
| MECHANICAL PROPEERTIES | Alumina content | 96% |
| Bulk density | 3.8 | |
| Water absorption | 0% | |
| Bending strength | 3,000Kg/cm2 | |
| Strength against compression | 20,000Kg/cm2 | |
| Young modulus | 3.05×106kg/cm2 | |
| THERMAL PROPERTIES | Linear
expansion coefficiencyat 25-400·C at 25-800·C | 7.1×10-6/·C 8.2×10-6/·C |
| Heat conductivity at 25·C | 0.055cal/cm.sec.·C | |
| Specific heat at 25·C | 0.185cal/g.·C | |
| ELECTRIC PROPEERTIES | Insulation resistivity | 10KV/mm |
| Specific volume resistivity
at 20.C300.C500·C | ＞1014Ω.cm 1013Ω.cm 1012Ω.cm | |
| Dielectric constant(1MHz) | 9.6 | |
| Dielectric tangent(1MHz) | 2×10-4 | |
| Dielectric loss(1MHz) | 19.2×10-4 | |
| Te-Value | 1,000·C |
·Alumina
Substrates:96% Al2O3
(Alumina)
·Thickness:
Standard
Thickness 0.635,0.8,1.0mm.
Thickness Tolerance ±8% (Other thickness
spec. available)
·Dimension
Tolerance:
Standard Specification ±0.5%(NLT ±0.05mm)
Custom
Specification ±0.3%(NLT ±0.05mm)