High precision zirconia ceramic scrapers

High Precision Zirconia Ceramic Scrapers

Parameter Unit Typical Value (YSZ)
Material Composition ZrO₂ + 3~8 mol% Y₂O₃
Color Ivory / White
Density g/cm³ 6.00 ~ 6.05
Flexural Strength (Room Temp.) MPa 900 ~ 1200
Fracture Toughness MPa·m¹/² 6 ~ 9 (Standard) / 10 ~ 15 (Toughened)
Vickers Hardness HV0.5 / GPa 1200 ~ 1350 HV / ≈13 GPa
Elastic Modulus GPa 190 ~ 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:

Property Typical Value / Range Remarks
Material Yttria-Stabilized Zirconia (YSZ, ZrO₂ ≥99.5%) 3–8 mol% Y₂O₃ for toughness & stability
Density 5.9–6.1 g/cm³ Fully dense, zero open porosity
Hardness (Vickers) 1200–1400 HV Extreme wear resistance
Flexural Strength 900–1300 MPa High resistance to bending/breaking
Fracture Toughness 6–10 MPa·m¹/² Better 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 μm Mirror polish for low friction
Max. Operating Temperature Up 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.