SUOYI Magnesia-Stabilized Zirconia (MSZ / Mg-PSZ) for Thermal Spraying

SUOYI Magnesia-Stabilized Zirconia (MSZ / Mg-PSZ) for Thermal Spraying

Material: MSZ (Magnesia-Stabilized Zirconia) – a ceramic powder designed for thermal spray applications.
- Matrix: ZrO₂

- Stabilizer: MgO (typically 2–3 wt.% for standard spray grades; up to 20–24 wt.% for high-MgO thermal insulation grades).
- Morphology: Fused and crushed powder, or spherical powder produced via the HOSP (High-Temperature Oxidation/Spheroidization) process (spherical powder is preferred for spraying due to superior flowability).
- Color: White to light beige.

Primary Thermal Spray Processes
- Main Method: Atmospheric Plasma Spraying (APS) – the most common technique.
- Alternatives: HVOF (High-Velocity Oxy-Fuel) or flame spraying; often applied over a bond coat (e.g., NiAl or NiCrAlY) to enhance adhesion.
- Recommended Particle Size: 15–45 μm / 20–53 μm (standard ranges for plasma spraying).

Key Coating Characteristics
- Melting point ~2200°C; low thermal conductivity; excellent performance as a Thermal Barrier Coating (TBC).
- Resistant to thermal shock and wetting by molten metals (e.g., aluminum, zinc, copper, and molten steel).
- Resistant to slag erosion and high-temperature impingement/erosion; superior high-temperature stability compared to YSZ (Yttria-Stabilized Zirconia).
- Typical Coating Structure: Lamellar (layered) with controlled porosity (porosity enhances thermal insulation).
- Limitations: Susceptible to aging during long-term exposure to intermediate temperatures (600–900°C), making it less suitable for prolonged cyclic operation within this range; lower ambient-temperature toughness compared to sintered Mg-PSZ components.

Typical Applications (Thermal Spray Coatings)
1. Thermal barrier coatings for gas turbines, heat-treatment tooling, and burners.
2. Anti-stick and erosion-resistant coatings for melting troughs, gates, and molds used in aluminum, zinc, and copper processing.
3. Protection for metallurgical tuyeres, continuous casting components, and parts subject to high-temperature erosion.
4. Protection for missile nose cones and components subject to high-temperature erosion (>845°C)
5. Substrate coatings for oxygen sensors; high-temperature isolation layers

Packaging & Export Specifications (suitable for use on product pages)
- Packaging: 25 kg/drum, with an internal aluminum foil liner; palletized for ocean freight
- Payment Terms: 40% T/T in advance
Magnesia-stabilized zirconia (MSZ) powder, thermal spray powder, Mg-PSZ plasma spray powder, ZrO₂-MgO thermal barrier coating powder