Technical Ceramics
Zirconia (ZrO2)
Yttria Stabilised Zirconia
Morgan Technical Ceramics offers injection mouldable yttria stabilised zirconia ceramic for the medical industry. Within medical applications, zirconia ceramic offers a highly wear resistant and more biocompatible solution vs titanium which can cause an allergic reactions within certain patients.
Additionally, with the onset of smart monitoring, implant cases made of Zirconia do not suffer from magnetic and electrical interference the same way metallic cases do in certain environments. This allows patients to safely and reliably measure & monitor bodily functions through wireless means. Grades compliant to ISO 13356 implant standard are available within our portfolio.
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Material Properties |
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General |
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Colour |
White |
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Density |
g/cm3 |
>6.0 |
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Porosity (apparent) |
% nominal |
0 (fully dense) |
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Rockwell hardness (R45N) |
% |
87 |
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Fracture toughness |
MPa.m1/2 |
10 |
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Flexural strength (4-point) |
MPa @20°C |
>800 |
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Grain size |
μm |
0.2 |
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Young's modulus E |
GPa @20°C |
220 |
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Thermal |
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Thermal conductivity |
W/mK @20°C |
2.9 |
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Thermal expansion coefficient |
106 @20-1000°C |
9.0 |
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Thermal shock resistance (R1) |
∆T/°C |
400 |
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Thermal shock resistance (R2) |
W/m |
891 |
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Specific heat |
J/kg.K |
610 |
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Electric |
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Permittivity |
10 GHz @20°C |
33 |
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Volume resistivity |
ohm.cm @100°C |
>1010 |
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Nilcra® Zirconia
Nilcra® Zirconia is a range of 'transformation toughened' ceramics that are inert to most chemicals, have exceptional strength, have high toughness and reliability which together result in outstanding resistance to wear and corrosion.
Nilcra® Zirconia’s are frequently used to replace conventional metal alloys, hardened steels and tungsten carbides that suffer from wear and corrosion.
Nilcra® Zirconia’s are used in a wide variety of industries experiencing high maintenance costs, high downtime costs and poor product quality from lack of process control.
Industries as diverse as oil and gas, mining, food and battery production have enjoyed the benefits of long life, high production rates and low maintenance.
Our grades of Nilcra® Zirconia include:
Magnesia - Partially Stabilised Zirconia (Mg-PSZ) – Highest toughness grades:
These are the most reliable grades of ceramic in the world (Weibull modulus of >30) thereby providing peace of mind that Mg-PSZ components will perform the same every time and allowing engineers to utilise with confidence a much higher percentage of the published material strength compared to that of brittle ceramics.
- Nilcra® Zirconia MS – 'Maximum Strength' grade ideal for wear and corrosion solutions and used extensively in materials handling industries.
- Nilcra® Zirconia TS – 'Thermal Shock' grade provides high resistance to thermal shock and is used in non-ferrous metal extrusion applications.
Yttria - Tetragonal Zirconia Polycrystal (Y-TZP) - Highest strength and hardness grades with a finer grain structure:
- Nilcra® Zirconia 3Y-TZP – A fine grain grade frequently used in the Petrochemical Industry and for applications required to maintain a sharp edge.
- Nilcra® Zirconia HIP’ed 3Y-TZP – An ultrahigh density grade used widely in the manufacture of food and beverage cans.
Learn about our Zirconia solutions:
- Oil and gas products
- Zirconia frac plug buttons
- Hard wearing valve trim (the benefits)
- Food processing and canneries
- Copper and bass extrusion dies
- Zirconia ceramic cutting blades
- Battery tooling
- Zirconia ceramic hanger bearings
- HF tube welding rolls
- Hard wearing Zirconia in pumps
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Physical properties |
Nilcra® Zirconia MS |
Nilcra® Zirconia TS |
Nilcra® Zirconia 3Y-TZP |
Nilcra® Zirconia HIP’ed 3Y-TZP |
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Colour |
White |
White |
White |
Grey |
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Density |
g/cm3 |
5.74 |
5.74 |
6.07 |
6.08 |
@20°C |
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Flexural strength |
MPa |
820 |
650 |
1000 |
1400 |
@20°C |
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Compressive strength |
MPa |
1990 |
1800 |
2300 |
2300 |
@20°C |
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Tensile strength |
MPa |
430 |
390 |
@20°C |
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Weibull modulus |
>30 |
>30 |
@20°C |
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Modulus of elasticity |
GPa |
205 |
205 |
205 |
205 |
@20°C |
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Poisson's ratio |
0.31 |
0.31 |
0.3 |
0.3 |
@20°C |
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Hardness |
HV0.3 kg/mm2 |
1120 |
1020 |
1300 |
1350 |
@20°C |
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Hardness Rockwell |
45N |
82 |
@20°C |
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Fracture Toughness |
MPa√m |
12 |
15 |
10 |
10 |
@20°C |
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Average grain size |
μm |
40 |
45 |
0.4 |
0.4 |
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Maximum use temperature |
°C |
800 |
800 |
800 |
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Thermal shock resistance |
∆T °C |
375 |
500 |
200 |
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Electrical resistivity |
Ohm.com |
>1011 |
>1011 |
>1011 |
>1011 |
@20°C |
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Thermal conductivity |
W/m.K |
3.08 |
3.05 |
3.0 |
3.0 |
@20°C |
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Thermal expansion coefficient |
x10-6 mm/mm/°C |
10.2 |
9.9 |
9.0 |
9.0 |
25-400°C |
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Specific heat capacity |
J/g.K |
0.47 |
0.47 |
0.5 |
0.5 |
@20°C |