●High hardness, high toughness, high bending strength ●High wear resistance, low friction coefficient, ●Strong corrosion resistance ●Low coefficient of thermal expansion ●High crack propagation resistance, high fracture toughness
Using 3Ymol yttrium stabilized zirconia powder, self-developed specially suitable for zirconia wear-resistant ball valve powder, isostatic pressing forming, high temperature sintering, high density into balls, high precision processing concentricity, high roundness, spherical smooth lubrication, short grinding processing cycle, convenient clamping
1. 3Y, 5Y, 8Ymol yttrium stabilized zirconia zirconia powder
2. Open mold processing: dry pressing, CIM injection molding, isostatic pressing.
3. Appearance processing: surface grinding, outer diameter/inner diameter grinding, fine engraving machining, grinding, polishing grinding.
●New energy●electricity●petroleum●Chemical engineering●metallurgy●mining●ocean●Sewage treatment
Material | zirconia | Fracture toughness MPam1/2 | 8 | Modulus of elasticity Gpa | 200 |
Hardness (HV) | 1350 | colour | white | Poisson'sRatio | 0.3 |
Thermal Expansion Coefficient (10-6°c) | 10 | Water absorption(%) | <0.01 | Component content(%) | ZrO₂ ≧95 |
Firing temperature | 1550-2600 | Compressive strength Mpa | 2000 | Dielectric constant(1MHZ) | 28 |
Temperature resistance(°C) | 1800 | hardness Hra | 88.8 | Mirror polishing(Ra) | ≦ 0.05 |
Specific Gravity(g/cm3) | 6.05 | Volume resistance (cm) | > 1012 | Thermal conductivity (W/m x K) | 5 |
Flexural Strength (MPa) | 800-1000 | coarseness(um) | ≦ 0.8 | Thermal shock resistance△T℃ | 400 |
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