technical ceramic solutions


Hot-Pressed Aluminum Nitride

Some extreme environments require the high electrical resistivity in additional to exceptional thermal conductivity, high abrasive and high-temperature thermal cycling. To solve this kind problem, Innovacera provides Hot-pressed aluminum nitride ceramic material as solutions.

Hot-Pressed Aluminum Nitride Ceramic Components

Innovacera Hot pressed ALN ceramic components purity is 99.5% aluminum nitride and its density is about 3.3g/cm3. The thermal conductivity is 140-170 W/(m·k). The forming way of hot-pressed aluminum nitride ceramics is vacuum hot pressing sintering.
After high temperature and high pressure, hot pressed ALN ceramic part mechanical strength and hardness are better than the tap-casting molding process and cold isostatic press method.
Innovacera can provide the maximum size of hot-pressed aluminum nitride ceramic part is Length 500 x width 500 x height < 350 mm and Outer diameter 500 x height < 500 mm

Hot- Pressed aluminum nitride ceramics material properties:

ITEM UNIT Testing Value
Hardness Kgf/mm2 1070
Density G/cm3 3.3
Fracture Toughness 2.4
Thermal Conductivity W/m.k 140
Flexural Strength Mpa 440
Characteristic Strength Mpa 450
Coefficient Of Thermal Expansion X10-6/°C 5
Dielectric Constant @1MHZ 9
Loss Tangent@1MHZ 0.00029

Hot- Pressed aluminum nitride ceramic components features:

  • Excellent thermal conductivity
  • High electrical insulation
  • High dielectric strength
  • Resist high temperature and corrosion
  • Thermal expansion coefficient similar to Si, GaN, and GaAs semiconductors
  • Suit for rigorous or abrasive environments
  • Can’t be eroded by all kinds of molten metals and molten hydrochloric acid.

Hot- Pressed aluminum nitride ceramic part application:

  • Semiconductor heaters
  • Magnetic resonance imaging equipment
  • Etching machine
  • Integrated circuit part
  • Structural packaging materials
  • High-power heat dissipation insulating substrates
  • Microwave window materials
  • Compound semiconductor single crystal growth crucible

Innovacera can provide Hot Pressed Aluminum Nitride (HPALN) as customized size and welcome to send your inquiry for us.