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High precision Magnesia-stabilized zirconia Mg-PSZ Yellow zirconia ceramic

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/℃
  • 02D02

  • HaoRui

Magnesium-zirconium,MG-PSZ ceramic have the highest fracture toughness, and they have excellent mechanical properties, including high strength, fracture toughness, wear resistance, good thermal shock resistance and low thermal conductivity.

The oxidase-partially stable zirconia ceramics (MG-PSZ), which is commonly referred to as magnesium-zirconia ceramics, are all yellow with a density of about 5.7g/cm³.

Magnesium oxide partially stabilized zirconia, with magnesium oxide (MgO) as the stabilizer, forms a crystal structure that is more stable, resulting in a cube-like shape. This material, known as magnesium zirconium, exhibits superior resistance to high temperatures and moisture due to its immunity to phase migration. Unlike yttrium partially stabilized zirconia, which experiences a decline in mechanical properties in humid and high temperature environments, magnesium zirconium retains its strength.


  • 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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