Metallized Al2O3 Alumina ceramic disc

Features:

ceramic surface coated by Mo-Mn, Ni-plating, firing at high temperatures in order to ceramic and metal welding. With high seal strength, high air tightness, high reliability.

Metallized ceramics products performancel:

Tightness (leak rate) ≤1 × 10-11 Pa • m3 / s

Tensile strength ≥ 120MPa

Breakdown strength ≥ 18kV/mm (D • C)

Thermal shock resistance 850 °C - 25°C-five times

Dielectric constant of 9 ~ 10 (1MHz, 20 °C)

Volume resistivity ≥ 108Ω • cm

Used in: electronics vacuum tubes, all kinds of klystron, traveling wave tubes, microwave tubes, magnetron,  vacuum tubes, night vision proposed microwave, X-ray tubes and other .

Product Specifications: Φ95 × 180, Φ93 × 180, Φ88 × 183, Φ85 × 163, Φ81 × 161, Φ80 × 120, etc.

Bulk Density: ≥ 3.60g/cm3,

Tightness: ≤ 10-11 Pa • m3 / s,

Metal layer tensile strength: ≥ 150MPa;

Linear expansion coefficient: (6.5 ~ 8.0) × 10-6 / °C;

Dielectric constant: 9 ~ 10 (1MHz, 20 °C);

Volume Resistivity: ≥ 108Ω • cm;

Breakdown strength: ≥ 18kV/mm (D • C)

We can supply the products according to customer's drawings, samples and performance requirement.

metallized ceramics for vacuum interrupters,metallized ceramics for electrical and electronic devices, ceramic brazed components, ceramic metallizing, welding ceramic part