Metallized ceramic circular plate

Metallized ceramic circular plate

No.ParameterTypical Value / SpecificationUnit
1Alumina Purity95%or 99% %
2Bulk Density3.63g/cm³
3Thermal Conductivity (25°C)22.45W/m·K
4Coefficient of Thermal Expansion (20–1000°C)8.26×10⁻⁶/°C
5Flexural Strength≥340MPa
6Dielectric Strength≥8.3kV/mm
7Dielectric Constant (1 MHz)9.1@1MHz
8Dielectric Loss (1 MHz)≤0.0004@1MHz
9Metallization Layer (Mo/Mn)15–25 μm
10Plating Layer (Ni/Cu/Au etc.)8–10  μm

Metallized ceramic circular plate

Meetcera supplies precision metallized ceramic components in aluminum oxide ceramics for the military, medical, and aerospace industries. Through spray, needle, and brush coatings or screen printing our capabilities allow us to metallized on flat, cylindrical, and complex ceramic bodies. Moly-Manganese is the typical base coat materials used for metallization.
Property
Unit
92% Alumina Ceramic
95% Alumina Ceramic
99% Alumina Ceramic
Density
g/cm3
≥3.63
≥3.68
≥3.83
Water absorption
%
O
O
O
Sintering temperature
°C
1500-1700
1600-1800
1700-1800
Hardness
HV
≥1400
≥1500
≥1650
Flexural strength
Kgf/cm2
3000
3000
3000
Compressive strength
Kgf/cm2
24000
25000
26000
Fracture toughness
Map.m3/2
3~4
3~4
4~5
Maximum temperature
°C
1600
1700
1800
Coefficient of thermal expansion
/°C
8*10-6
8*10-6
8*10-6
Heat shock
T(°C)
220
220
220
Thermal conductivity
W/m.k(25-300°C)
25 14
25 14
25 14
20°C
>1012
>1012
>1012

Metallized Ceramics Applications:

  • Ceramic Feed-through insulators,
  • Ceramic Headers,
  • Ceramic High-power receptacles,
  • Ceramic Insulating discs,
  • Ceramic Insulator rings and cylinders,
  • Ceramic Precipitator products,
  • Ceramic Power switches,
  • Ceramic Traveling wave tubes,
  • Ceramic Vacuum interrupters,
  • Ceramic components for Windows,
  • Ceramic Power grid tubes,
  • X-ray Ceramic tubes

Metallized Ceramics Joining types:

  • Ceramic + Mo/Mn Metallized + plating Ni
  • Ceramic + Mo/Mn Metallized + plating Ag
  • Ceramic + Mo/Mn Metallized + plating Au
  • Ceramic + printing Ag

Special types are available according to customer’s drawings or samples

Metallized Ceramic Catalog Download PDF