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Zirconia Toughened Alumina Substrate | ZTA Substrate

HM2610

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Zirconia Toughened Alumina (ZTA) Substrate is known for its excellent heat dissipation, insulating properties, thermal shock resistance, and mechanical strength, widely used in IGBT modules, LEDs, and other fields. Heeger Materials is a professional supplier and manufacturer of high-quality ZTA Substrates, offering competitive prices and customized solutions to meet specific requirements.

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MaterialsZTA
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Zirconia Toughened Alumina (ZTA) is a composite phase ceramic material with Al2O3 as the matrix and partially stabilized ZrO2 as the toughened phase, providing a good toughening effect. ZTA substrate has high strength, toughness, and reflectivity, and can withstand severe thermal shock testing. ZTA substrate has good flexural strength compared to ordinary Al2O3 substrates and is widely applied in areas that require strong current-carrying and heat-dissipating capabilities. HM can supply high-precision and competitively priced ZTA Substrates with various specifications for choices.

HM can also provide other high-quality ceramic substrate materials, including Alumina (Al2O3), Aluminium Nitride (AlN), Silicon Carbide (SiC), Zirconia (ZrO2), and Boron Nitride (BN).

Zirconia Toughened Alumina Substrate | ZTA Substrate

Zirconia Toughened Alumina (ZTA) Mechanical Properties

ItemUnitParameter
Color——White
Densityg/cm³4.1~4.38
HardnessGPa15
Compressive StrengthMPa2350
Bending StrengthMPa700
Fracture ToughnessMPa·m1/23.5
Young's ModulusGPa310
Poisson's Ratio——0.26

Zirconia Toughened Alumina (ZTA) Thermal Properties 

ItemUnitParameter
Maximum Operating Temperature℃ (without mechanical load)1500
Thermal Conductivity @ 25℃W/(m·K)20
Linear Thermal Expansion Coefficient40-400℃, ×10^-6/℃8
Specific Heat CapacityJ/(kg·K)720
Thermal Shock Resistance℃ (when immersed in water)300

Zirconia Toughened Alumina (ZTA) Electrical Properties

ItemUnitParameter
Dielectric Constant1 MHz10.2
Dielectric Strength (6.35mm)ac-kV/mm9.0
Dielectric Loss1 MHz20 × 10-4
Volume Resistivity @ 25℃Ω·cm＞1014
Volume Resistivity @ 500℃Ω·cm＞104

Zirconia Toughness Alumina (ZTA) Substrate Features

  • More than twice as strong as normal aluminum oxide substrates.
  • More than 1.5 times the bending strength compared to alumina (Al2O3) and aluminum nitride (AlN) substrates.
  • Higher reflectivity than general alumina (Al2O3) and aluminum nitride (AlN) substrates.
  • A homogeneous microfine microstructure achieves excellent surface roughness.
  • 1.2 times higher thermal conductivity than alumina (Al2O3) substrates.
  • Higher electrical insulation and smaller dielectric constant than alumina (Al2O3) substrates.

Zirconia Toughened Alumina (ZTA) Substrate Applications

  • High-power supply modules such as IGBT modules
  • LED modules
  • DBC or DPC metallization reprocessing
  • Automotive power modules
  • Sensor modules

Where to Buy Zirconia Toughened Alumina (ZTA) Substrates in Bulk?

Heeger Materials Inc., a professional supplier and manufacturer of high-quality Zirconia Ceramic products, including Zirconia Toughened Alumina (ZTA) Substrates, leverages extensive expertise in supply and export to offer competitive prices. We provide customized solutions to meet specific requirements, ensuring exceptional quality and customer satisfaction.

Heeger Materials Inc. was established in 2016 in Colorado, USA. We are a specialized supplier of premium-grade metals, alloys, ceramics, powders, and other materials catering to research, development, and large-scale industrial production in scientific and industrial sectors.

Zirconia Toughened Alumina Substrate | ZTA Substrate Selection Notes

Zirconia Toughened Alumina Substrate | ZTA Substrate belongs to the alumina ceramics range and is selected for high hardness, electrical insulation, wear resistance and thermal stability. It is commonly used in electronics, thermal management, insulation, circuits and precision support components as well as insulators, substrates, tubes, rods, plates, wear parts and precision ceramic components. When requesting a quote, confirm thickness, length, width, surface finish, flatness, tolerance and thermal or electrical requirements.

Related Materials and Product Forms

For material comparison or adjacent product forms, browse alumina rods, alumina plates, zirconia ceramic and alumina ceramics.

FAQ

Can Zirconia Toughened Alumina Substrate | ZTA Substrate be customized? Yes. Heeger Materials can review custom sizes, purity or grade requirements, tolerances, drawings, quantities and application conditions for this product.

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