Zirconia Components for Wear & Corrosion
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Refractron Technologies Corp. is a leading manufacturer of technical ceramics. Products include both controlled porosity and densely structured ceramics designed to meet requirements specified by our customers for durability, chemical, corrosion and wear resistance, toughness, and density.
The range of dense structural ceramics using proprietary zirconia ceramics includes custom blended ceramic
alloy powders formed by isopressing or extrusion to meet customer specifications. Refractron’s zirconia is offered
in two materials Magnesia Partially Stabilized Zirconia, Mg-PSZ and Yttria Tetragonal Zirconia Polycrystal, Y-TZP.
Refractron’s structural ceramic zirconia materials provide excellent erosion, corrosion and abrasion resistance
along with temperature resistance, fracture toughness and strength. These ceramic alloy components are used in
extreme service applications that take advantage of their superior wear and corrosion resistance. Numerous
applications for these materials are in the chemical and petrochemical industry providing economic payback in the
way of reduced maintenance and down time. Zirconia is also becoming the material of choice for components in
healthcare and dental applications.
This dense structural ceramic material is usually precision ground using conventional diamond cutters and
wheels. Machines used for precision grinding include: surface grinders, CNC milling machines, jig grinders, center
less grinders, CNC lathes, ID grinders, etc.
The types of dense, structural ceramic components produced by Refractron include: valve components, pump
liners, plugs, sleeves, pistons, precision ceramic balls, spools, press tooling, dental blanks, extrusion tooling and
wear plates. Other specialty products include a range of porous ceramic filters, diffusers and adsorbent filter/drier
cores for refrigeration applications, dispersion parts, vacuum chucks, inkpads and gas probes.
We work closely with our customers to define their needs and the requirements of each specific structural ceramic
application. Our engineering and sales team is great at attacking technical design and process problems, then
customizing an innovative solution using our broad range of advanced industrial ceramics. Contact us with your
application requirements.
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Refractron Zirconia Ceramic Properties |
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Chemistry (wt%) |
Mg - PSZ |
Y-TZP |
Y-TZP(H) |
| ZrO2+ MgO or Y2O3 + HfO2 + Al2O3 | > 99.95 |
> 99.5 |
> 99.5 |
Physical Properties (typical) |
Mg - PSZ |
Y-TZP |
Y-TZP |
| Density (g/cm3) | 5.75 - 5.85 |
6.05 |
6.08 |
Porosity (%) |
< 0.5 |
< 0.5 |
0.05 |
| Color | White |
White |
White |
| Grain Size (microns) | 30 - 40 |
< 0.5 |
< 0.5 |
Mechanical Properties (typical) |
Mg - PSZ |
Y-TZP |
Y-TZP(H) |
| Fracture Toughness (MPa.M1/2) | 10 |
8 |
8 |
| Young’s Modulus (GPa) | 200 |
210 |
220 |
| Flexural Strength (MPa) | 620 |
900 |
1400 |
| Hardness Hv (GPa) | 10.7 |
13 |
13.5 |
| Compressive Strength (MPa) | 1760 |
2500 |
2580 |
Thermal Properties (typical) |
Mg - PSZ |
Y-TZP |
Y-TZP(H) |
| Thermal Conductivity (W/m°k) | 2.18 |
2.18 |
2.18 |
Coeff. Of Thermal Expansion (25°C-1000°C) |
10.0 |
10.2 |
10.2 |
| Max. Use Temperature (°C) | 500 |
1500 |
1500 |
Electrical Properties (typical) |
Mg - PSZ |
Y-TZP |
Y-TZP(H) |
| Dielectric Strength (volts/mil) | 235 - 240 |
225 - 230 |
225 - 230 |
| Dielectric Loss (1MHz @ 25°C) | 0.001 |
0.001 |
0.001 |
| Volume Resistivity (Ohm-cm @ 25°C) | >1013 |
>1013
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>1013 |
NOTE: All statements, technical information and recommendations in this literature are based on tests we believe to be reliable and accurate. Before using or purchasing products described, the buyer shall determine the suitability of the component for its final use. The buyer shall assume all risk and liabilities associated with the final product use.