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Zirconia Ceramic Parts
Density : 6.00 g/cm3
Color : White, Black, Blue, Yellow
Electrical Insulation : Good
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Product Introduction
Description
Zirconia Ceramic Parts made of the material zirconium oxide(ZrO2) can withstand the highest loads. The high strength and low thermal conductivity of zirconia parts are just two properties that characterize the material. Zirconia is also versatile in the metal-ceramic composite. Coupled with our know-how in connection technology, zirconia components for special applications can be realized. Zirconium oxide is therefore ideally suited for use in a wide range of industries, from mechanical and plant engineering to the oil and gas industry. The material is particularly predestined for use in medical technology, for example in dental ceramics as blanks (zirconium oxide blanks and discs). UNIPRETEC's ZrO2/Zirconia is the optimal ceramic material thanks to its special material properties.
Material Properties (YSZ95)
ITEM | UNIT | Alumina | A950 | Alumina | A990 | Zirconia | YSZ95 | Silicon Nitride | GPSN |
Main Content | - | 95% Al2O3 | 99% Al2O3 | ZrO2>94.5% | Si3N4>90% |
Color | - | White / Pink | Ivory | White / Black / Blue | Black / Grey |
Density | g/cm3 | 3.70 | 3.85 | 5.95 | 3.22 |
Vickers Hardness | Gpa | 14 | 17 | 12 | 15 |
Flexural Strength | Mpa | 310 | 360 | 800 | 580 |
Compressive Strength | Mpa | 2,200 | 2,500 | 2,500 | 2,200 |
Electrical Resistivity | Ω·cm | >1014 | >1014 | >1010 | >1012 |
Dielectric Strength | KV/mm | 15 | 17 | 9 | 19 |
Dielectric Constant | 1 MHz | 8 | 9 | 28 | 9.6 |
Thermal Conductivity | W/m.K | 25 | 29 | 2.2 | 27 |
Max. Working Temperature | ℃ / °F | 1,500 / 2,730 | 1,650 / 3,000 | 800 / 1,470 | 1,200 / 2,190 |
Resistance to Thermal Shock | △T(℃) | 210 | 230 | 260 | 750 |
Thermal Expansion Coefficient (25 - 1,000 ℃) | 10-6 /K | 7 - 9 | 7 - 9 | 11 - 13 | 3 - 4 |
∆ The above data is offered for reference and comparison only, exact data will vary depending on manufacturing method and part configuration.
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More Information
Among the machining process methods of zirconia ceramic products, the mechanical machining methods are highly efficient, so they are widely used in industry, especially diamond wheel grinding and polishing are more common. Although there are many methods for machining zirconium oxide ceramic products, the machining cost is high, the processing efficiency is low, and the processing accuracy is poor. One of the main reasons is that the hardness of fully sintered zirconia products is extremely high. For the zirconia ceramic unsintered or calcined body, the rough machining is mainly carried out by cutting, and after sintering (the process of transforming the powdery material into a highly densed body), it is finished by grinding. According to the different conditions of zirconium oxide product, the sintered body can be directly ground without processing to achieve the design accuracy (precision).
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