Suoyi Spherical Yttria-Stabilized Zirconia (YSZ) Powder for Thermal Spraying

Suoyi Spherical Yttria-Stabilized Zirconia (YSZ) Powder for Thermal Spraying
1. Product Overview: Spherical Yttria-Stabilized Zirconia (YSZ) Powder for Thermal Spraying

Spherical Yttria-Stabilized Zirconia (YSZ) powder—available in common specifications such as 3YSZ, 4YSZ, and 8YSZ—is a specialized thermal spray powder characterized by high sphericity, excellent flowability, and low porosity.
Key Characteristics: High melting point, low thermal conductivity, superior thermal shock resistance, good chemical stability, and high coating bond strength; widely used in plasma and flame spraying processes to produce thermal barrier coatings.
Applications: Thermal barrier coatings for aero-engines and gas turbines; automotive components; high-temperature metallurgical rollers; furnace protection; and high-temperature, wear-resistant coatings for molds. Product Keywords: Spherical YSZ powder, thermal spray yttria-stabilized zirconia, 8YSZ spray powder, 5YSZ spray powder, 20YSZ spray zirconia

2. Production Process for Spherical Yttria-Stabilized Zirconia Spray Powder
1). Raw Material Preparation: High-purity zirconia powder + yttria powder, precisely proportioned to achieve the target yttria content;
2). Wet Ball Milling: Mixing and ultrafine grinding to ensure compositional uniformity;
3). Spray Granulation: Atomization and drying of the slurry to produce spherical agglomerated powder granules;
4). High-Temperature Calcination: High-temperature sintering to stabilize the crystal phase and form a stable zirconia crystal structure;
5). Plasma Spheroidization: High-temperature plasma melting and reshaping of particles to achieve high sphericity;
6). Classification/Sieving: Air classification to select the target particle size range (common spray-grade ranges: 15–45μm, 45–75μm, etc.);
7). Iron Removal & Purification: Magnetic separation to remove impurities;
8). Testing & Packaging: Testing for particle size, sphericity, flowability, oxygen content, and crystal phase (XRD); qualified products are placed in inventory.

3. Inventory
- 8YSZ spherical spray zirconia is kept in regular stock; 5YSZ and 20YSZ are stocked on demand, with limited quantities available immediately.
- Particle Size: 15–45μm and 45–75μm are standard stock specifications;
- Bulk Orders: Rapid production scheduling available with controllable lead times;
- Quality Control: Each batch comes with a COA test report (covering particle size, chemical composition, flowability, and apparent density). 4. Packaging Specifications
25kg/plastic drum; double-layer vacuum-sealed aluminum foil inner bag; thickened plastic outer drum.
Product label affixed to the drum: Product Name, Grade, Batch Number, Net Weight, Particle Size, Production Date, COA Number.
Palletizing: 25kg/drum; drums are stacked and secured on pallets, suitable for container shipping.

5. Shipping Process
1. Order Confirmation: Contract/PI signed; prepayment received.
2. Pre-shipment QC: Batch verification, sampling and re-testing, COA issuance.
3. Packaging & Labeling: 25kg/drum sealing; pallet securing.
4. Customs Documentation: Packing list, invoice, contract, Certificate of Origin, etc.
5. Pickup Arrangement: Logistics provider/freight forwarder collects goods.
6. Shipment Tracking: Bill of Lading/tracking number provided; end-to-end monitoring until delivery.
7. After-sales: Delivery verification and technical support.

6. Transportation Methods
✅ Sea Freight (Preferred for large-scale export orders)
Suitable for large volumes; low cost; drums secured on pallets (moisture/rain-proof); containerized shipping; full set of customs clearance documents provided; longer transit time.

✅ Air Freight (Small batches, urgent orders)
Rapid delivery for samples/small batches; requires air transport safety assessment (standard ceramic powders are non-hazardous); fast transit; higher cost than sea freight.

✅ Land Transport (Domestic customers & cross-border to neighboring countries)
Domestic Full Truckload (FTL) or Less-than-Truckload (LTL); cross-border land transport suitable for regions like Central Asia; palletized for impact protection; fast delivery for short distances. 7. Key Product Advantages
1. High sphericity and excellent flowability ensure stable powder feeding during spraying without clogging the gun;
2. Uniform yttrium distribution and stable crystalline phases result in consistent coating quality;
3. Minimal fluctuation in apparent density allows for controllable coating porosity;
4. Low impurity content ensures oxidation and corrosion resistance at high temperatures;
5. Packaged in standard 25kg drums for convenient storage, handling, and container loading;
6. Multiple transportation options available; supports international export.