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1.95% alumina,heat compression molding,the alumina has been to improved insulation and mechanical strength.
2.The ceramics without crack, without burr,without pinholes,without gaps,without impurities, surface is smooth, dye absorption is passed.
3.The ceramic body is compact, Density ≥ 3.65g/cm3, high mechanical shock resistance.
4.Plane Parallelism ≤ 0.05mm, Diameter Tolerance ≤ ± 0.025mm, Circumferential Deformation Size ≤ 0.05mm, Linear Dimension Tolerance ≤ ± 0.05mm.
5.Insulation Resistance ≥ 100MΩ (have been checked by megohm in DC500V).
6.Dielectric Strength: AC2000V/50HZ/1min no breakdown phenomenon.
7.Linear expansion coefficient is slight,and less than 8.0 × 10-6mm /degree celsius, and good for thermal shock performance.
8.Sintering temperature is 1700 degree celsius, the operating temperature range can be 1300 degree celsius, and have good corrosion resistance..jpg)
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