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Advanced Mg-Psz MGO Partially Stabilized Magnesia-stabilized Zirconia Ceramic fixture

Magnesium-stabilised zirconia ceramics use magnesium oxide (MgO) as a stabilising agent for zirconia, and the crystal structure is cubic lattice after moulding, which is more stable. Magnesia-zirconia has better resistance to high temperature and humidity because it is not affected by phase migration. Magnesia-zirconia retains its strength even in humid, high-temperature environments where the mechanical properties of yttrium oxide partially stabilised zirconia begin to deteriorate.

Colour: yellow
Density: 5.7 g/cm3
Hardness: 11.8 GPa
Maximum working temperature: 1000°C
Thermal conductivity: 2.2W.(MK)-1
Flexural strength: ≥900 Mpa
Fracture toughness: >7.0 (Mpa.m1/2)
Thermal expansion coefficient (0~1400℃): 10.2×10-6/℃
  • 02D08

  • HaoRui

Zirconia's exceptional strength and remarkable resistance to corrosion, wear, and abrasion make it an ideal material for various applications.

What is magnesium oxide partially stabilized zirconia ceramics?What is magnesium oxide partially stabilized zirconia ceramics?

The oxidase partially stable zirconia ceramics (MG-PSZ), commonly known as magnesium-zirconia ceramics, have a yellow color and a density of approximately 5.7 g/cm³. Magnesium oxide is used as the stabilizer for zirconia in MG-PSZ, resulting in a more stable crystal structure. Magnesium zirconium exhibits superior resistance to high temperatures and moisture due to its immunity to phase migration. Even in humid and high temperature environments, where the mechanical properties of yttrium partially stabilized zirconia deteriorate, magnesium zirconium retains its strength.

This exceptional stability makes MG-PSZ an ideal material for applications in harsh conditions. Its resistance to phase migration ensures that it can maintain its structural integrity even when exposed to extreme temperatures and moisture. This is particularly advantageous in industries such as aerospace and automotive, where components are subjected to demanding environments. The yellow color of MG-PSZ also adds aesthetic appeal, making it a popular choice for decorative purposes.

Furthermore, the density of approximately 5.7 g/cm³ makes MG-PSZ lightweight yet durable. This combination of properties makes it highly versatile, suitable for a wide range of applications. Whether it's used in engine components, cutting tools, or even jewelry, MG-PSZ offers exceptional performance and reliability.

In conclusion, the unique properties of MG-PSZ, including its stability, resistance to high temperatures and moisture, and lightweight nature, make it a valuable material in various industries. Its yellow color and density further enhance its appeal, making it a sought-after choice for both functional and decorative purposes.


  • Wire forming/drawing mold;

  • Precision in high-wear environments;

  • Axis;

  • furnace treatment tube;

  • Wear pad;

  • thermocouple protection tube;

  • sand blast nozzle;

  • Refractory materials;

  • Furnishing crucible;

  • Knives and blades;

  • fuel cell parts;

  • Bearings and rollers;

  • Weld nozzles and pins;

  • Gas igniter;

  • Electric insulator;

  • Ceramic guide plate;

  • Oxygen sensor;

  • Mechanical seal;

Mg-PSZ  Performance Table

Mechanical CharacteristicsColorGold Yellow-
Bending Strength400MPa
Compressive trength2500MPa
Elastic Modulus250GPa
Fracture Toughness6-7MPa m1/2
Weber Coefficient12m
Vickers Hardness1100HV 0.5
Thermal CharactericsCoefficient of Line Thermal Expansion1010-6K-1
Thermal Conductivity3W/mK
Thermal Shock Resistance(Put in Water)450ΔT °C
Max Working Temperature2100°C
Electrical CharacteristicsVolume Resistance at 20°C>1014Ωcm
Dielectric Strength13×105V/m
Dielectric Constant28εr
One MHZ Dielectric Loss Angle at 20°C0.0017tanδ
Chemical CharacteristicsNitric Acid (60%) 90°C0.1WT Loss mg/cm^2/day

Sulphuric Acid (95%) 95°C0.34

Caustic Soda (30%) 80°C0.95

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