High precision zirconia ceramic scrapers

High Precision Zirconia Ceramic Scrapers

ParameterUnitTypical Value (YSZ)
Material CompositionZrO₂ + 3~8 mol% Y₂O₃
ColorIvory / White
Densityg/cm³6.00 ~ 6.05
Flexural Strength (Room Temp.)MPa900 ~ 1200
Fracture ToughnessMPa·m¹/²6 ~ 9 (Standard) / 10 ~ 15 (Toughened)
Vickers HardnessHV0.5 / GPa1200 ~ 1350 HV / ≈13 GPa
Elastic ModulusGPa190 ~ 210
Thermal Expansion Coefficient (20~1000℃)×10⁻⁶ /℃9.5 ~ 11.0
Thermal Conductivity (Room Temp.)W/(m·K)2.0 ~ 3.0
Maximum Service Temperature (Long-Term)800 ~ 1000

High-Precision Zirconia Ceramic Scraper 

Manufactured from premium yttria-stabilized zirconia (YSZ) ceramic using advanced pressing, sintering, and precision edge grinding/polishing processes, Meetcera zirconia scraper blades offer unmatched durability, clean wiping performance, and zero contamination in demanding applications.

Key Performance Highlights:

  • Exceptional hardness & abrasion resistance: Far superior to steel or alumina blades, especially against abrasive inks, slurries, or coatings
  • Superior chemical inertness: Non-reactive with acids, alkalis, solvents, water-based/UV inks — no corrosion, no metal ion leaching
  • High edge sharpness & retention: Maintains consistent, clean metering/wiping over extended runs; minimal streaking or buildup
  • Excellent thermal & dimensional stability: Low expansion, good thermal shock resistance, suitable for high-speed or heated processes

Typical Application Scenarios:

  • Doctor blades for flexographic printing: Precise ink metering on ceramic anilox rolls, especially with abrasive or high-pigment inks
  • Coating & film application: Uniform thin-film deposition in battery slurries, solar cells, functional coatings, lab-scale tape casting
  • Precision scraping in electronics & semiconductor: Slurry/ paste removal, wafer processing, or cleanroom-compatible tools
  • Laboratory & R&D: Scratch-free scraping of viscous materials, adhesives, paints, or nanomaterials without contamination

Product Performance Specifications:

PropertyTypical Value / RangeRemarks
MaterialYttria-Stabilized Zirconia (YSZ, ZrO₂ ≥99.5%)3–8 mol% Y₂O₃ for toughness & stability
Density5.9–6.1 g/cm³Fully dense, zero open porosity
Hardness (Vickers)1200–1400 HVExtreme wear resistance
Flexural Strength900–1300 MPaHigh resistance to bending/breaking
Fracture Toughness6–10 MPa·m¹/²Better impact resistance than alumina
Edge Radius / Sharpness<5–20 μm (custom ultra-sharp available)Precision ground/polished edge
Surface Finish (Ra)≤0.05–0.2 μmMirror polish for low friction
Max. Operating TemperatureUp to 1200–1500°C (application dependent)Excellent thermal stability

FAQ

Q1: Why choose zirconia ceramic scraper blades over steel or coated metal doctor blades?

A: Zirconia provides dramatically longer life (often 5–20×) in abrasive conditions, complete non-metallic/non-contaminating performance, superior edge retention, and no risk of scoring delicate anilox rolls or substrates.

Q2: What handling precautions are recommended?

A: Avoid mechanical impacts or dropping (ceramic is hard but brittle); use gentle cleaning (ultrasonic or solvent wipe); control thermal gradients (ramp ≤10°C/min if heated); ensure proper blade angle/pressure setup to prevent chipping.

Q3: Can Meetcera customize blade dimensions and edge profiles?

A: Yes — full customization: lengths 10–500+ mm, widths 10–50 mm, thicknesses 0.1–2 mm, various edge geometries (square, beveled, rounded tip), tolerances ±0.01 mm, and special coatings/polishing. Provide drawings for quick quoting.