| Application: | Electronics |
|---|---|
| Flexural Strength: | >1000 MPa |
| Purity: | 95% |
|
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|
Item |
Unit |
Specification |
|
Composition |
wt% |
94.5% ZrO2 5.2% Y2O3 |
|
Bulk Density |
Kg/L |
>3.6(Φ2mm) |
|
Specific Density |
g/cm3 |
≥6.02 |
|
Hardness |
Moh's |
>9.0 |
|
Elastic modulus |
GPa |
200 |
|
Thermal Conductivity |
W/m.K |
3 |
|
Crushing Load |
KN |
≥20 (Φ2mm) |
|
Fracture Toughness |
MPam1-2 |
9 |
|
Grain size |
µm |
≤0.5 |
Zirconia ceramic has many applications due to its superior mechanical properties, including high fracture toughness and wear resistance. Furthermore, this material can withstand sudden temperature changes making it suitable for automotive oxygen sensors as well as optical fiber production.
Slurry-based 3D printing is the primary technique used for fabricating zirconia parts, yet can yield inconsistent results. Many experiments have been performed in order to optimize formulation of slurry compositions.
Zirconia boasts an excellent chemical composition that makes it versatile enough to offer many advantages, from strength and toughness to wear resistance and corrosion protection. As such, this material stands up well even in extreme operating environments and performs effectively in harsh conditions.
STC utilizes several types of zirconia when creating components for our clients. Our range includes yttria stabilized zirconia (YSZ), with its high proportion of tetragonal phase which has strong mechanical properties - making it suitable for applications such as cutting tools and dental prosthetics.
However, yttria partially stabilized zirconia (Y-PSZ) features both tetragonal and monoclinic phases, making it suitable for gas turbines as well as thermal barrier coatings.
yttria stabilized zirconia has an ideal combination of strength and toughness that makes it an excellent material for applications involving high stress or shock, such as protecting thermocouples from molten metal applications with its heat resistance and shock strength. Furthermore, it resists corrosion, wear, and thermal shock; for this reason it's often chosen over other options to protect them.
At room temperature, pure zirconia has a monoclinic crystalline structure; when exposed to higher temperatures it transitions between tetragonal and cubic phases that significantly increase its strength, known as transformation toughening. By adding stabilizers such as yttria to the zirconia it stays in its tetragonal form, further increasing strength and toughness - this type of zirconia known as Y-PSZ exhibits transformation toughening with 7x higher bending strength than regular Zirconia!
zirconium oxide ceramic can withstand high levels of stress and temperature without cracking under pressure; however, this is not its only strength. Fracture toughness - which prevents crack propagation - is another key characteristic of this material.
Zircalon 30 is our latest offering, designed to offer superior fracture toughness when compared with other engineering ceramics. Partially stabilized with yttrium oxide, this product allows it to retain its outstanding mechanical qualities over a wide temperature range.
Ivory-colored CSZ ceramic material was specifically developed for environments requiring durability in wet or moist conditions. Due to its exceptional flexural and compressive strengths, sensors, instruments, probes, pumps and fluid control systems can utilize its use with minimal degradation in low temperatures as well as reduced risk of molecular water damage than other engineering ceramics.
Zirconia ceramic is an increasingly popular engineering material for applications that must withstand harsh environments, due to its impact resistance, toughness and corrosion resistance properties. Plastic or metal components cannot cope as effectively in such conditions compared to zirconia's performance in such settings.
Yttria-doped partially stabilized zirconia (Y-PSZ) boasts one of the highest fracture toughness values among ceramic materials. Dopants enhance its tetragonal phase by shifting energy levels down, which prevents crack propagation - an often-seen failure mechanism in ceramics.
Zirconia ceramic's corrosion resistant qualities also make it an excellent choice for thermocouple protection tubes, insulators and sensors in industrial processes. Zirconia can withstand extreme temperatures without degrading, offering long service lives for the equipment as well as accurate temperature measurements in environments where sudden changes in temperatures could otherwise cause cracking in traditional materials.
Zirconia ceramic boasts exceptional electrical properties when doped with specific elements, enabling it to conduct oxygen ions efficiently - an attribute which makes it suitable for lambda probes used in gas analysis.
Due to its low thermal conductivity and chemical stability, silicone has found widespread application as a protective coating for thermocouples, helping avoid any heat gradients that might otherwise lead to inaccurate temperature readings. Furthermore, its use provides valuable protection from aggressive environments or chemicals found in industrial processes.
Researchers are researching new approaches to strengthen zirconia's strength and toughness beyond its excellent corrosion resistance, using new processing methods and additives. An increase in strength would make the material suitable for applications requiring high load-bearing capacities and dimensional stability.
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