Magnesium-stabilized zirconia (MSZ) powder

Magnesium-stabilized zirconia (MSZ) powder is a zirconia powder stabilized with magnesium oxide (MgO). Its core advantages are high temperature resistance (up to 2200℃), thermal shock resistance, resistance to molten steel/slag erosion, and good ionic conductivity. It is primarily used in four major areas: metallurgical refractories, high-temperature structures, energy electronics, and protection.

1. Metallurgical Industry (Core Application)
Continuous Casting Key Components: Used in the manufacture of sizing nozzles, ladle slide plates, slag rings, and tundish nozzles. It is resistant to molten steel erosion, thermal shock, and has a long service life, suitable for high-oxygen/high-calcium/high-manganese steel grades.
Precious Metal/High-Temperature Alloy Crucibles: Used for melting nickel-based alloys, platinum, gold, etc., stable above 1900℃, and does not contaminate the melt.
 Refractory Material Additives: Added to alumina-magnesia refractory bricks and castables to improve thermal shock resistance and slag resistance, extending furnace life.

2. High-Temperature Structural Ceramics
High-Temperature Valves/Seals: Ceramic ball valves, valve cores, and sealing rings. They are resistant to high-temperature wear and corrosion, used in chemical and metallurgical high-temperature pipelines. Wire Drawing/Drawing Dies: Drawing rollers, guide rollers, and dies for textiles and metal wires; wear-resistant, non-stick, and with a lifespan superior to cemented carbide.

High-Temperature Kiln Furniture: Firing plates, saggers, and pads; used in electronic ceramics and sintered rare earth permanent magnets; does not deform or contaminate products at high temperatures.

3. Energy and Electronics

Oxygen Sensors (Oxygen Concentration Cells): Utilizing the conductivity of oxygen ions at high temperatures, used for monitoring oxygen content in steelmaking, boilers, and automobile exhaust.

Solid Electrolytes: Core materials for high-temperature fuel cells and gas analyzers; high ionic conductivity and chemical stability.

Thermal Barrier Coatings: Plasma-sprayed powder coatings used in gas turbines and engine blades; provides heat insulation, oxidation resistance, and high-temperature corrosion resistance.

4. Special Protection

Armor: Manufacturing high-performance ceramic armor and helmet plates; high hardness, high toughness, and impact resistance.

High-Temperature Coatings/Heating Elements: High-temperature coatings and heating elements; resistant to extreme temperatures and environments.

5. Other Applications

Bioceramics: Porous scaffolds, implants; excellent biocompatibility and high strength.

Foam ceramic filters: Filter impurities in molten metal, improving casting purity.

Core Performance of Magnesium-Stabilized Zirconia Powder (Compared to Yttrium-Stabilized Zirconia)

✅ Higher operating temperature (long-term 1600–1800℃, short-term 2200℃)

✅ Superior thermal shock resistance (resistant to rapid heating and cooling, less prone to cracking)

✅ Stronger corrosion resistance (resistant to molten steel, acid and alkali slag)

❌ Slightly lower toughness at room temperature (more suitable for high-temperature applications)