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Introduction to Ceramic Structural Parts
Advanced ceramics can be divided into two categories according to their characteristics and uses: structural ceramics and functional ceramics. Structural ceramics are ceramics that can be used as engineering structural materials.
As can be seen from the figure below, the commonly used materials for structural ceramics are alumina, magnesia, silicon nitride, silicon carbide, zirconia and so on.
Advantages of Zirconia Ceramic Structural Parts
| 1. It has excellent wear resistance, chemical corrosion resistance, high temperature resistance and anti-magnetic characteristics, and can be used in extremely harsh environments without polluting materials and the environment. | 2. It has the characteristics of high toughness, high bending strength, excellent heat insulation performance, and the thermal expansion coefficient is close to that of steel. |
Material Properties
| Category | Property | Unit | ZrO2 (Y-TZP) | ZrO2 (MSZ) |
| Mechanical | Density | g/cm3 | ≥6.0 | ≥5.72 |
| Water absorption | % | 0 | 0 | |
| Vickers hardness | HV | 1300 | 1200 | |
| Flexural strength | Mpa | ≥ 1200 | ≥ 900 | |
| Compressive strength | Mpa | ≥ 1990 | ≥ 1750 | |
| Fracture toughness | Mpam1/2 | 6.5-8 | 11 | |
| Thermal | Max. Service temperature (non-loading) | ºC | 1000 | 1200 |
| CTE (Coefficient of thermal expansion) 20-800ºC | 1×10-6/ºC | 8.0-9.5 | 7.8-9.3 | |
| Thermal shock | T (ºC) | ≥ 300 | ≥ 300 | |
| Thermal conductivity 25ºC | W/(m·k) | 3 | 2 | |
| Specific heat | 1×103J/(kg·k) | 0.46 | 0.46 | |
| Electrical | Volume resistivity 25ºC | ohm·cm | > 1×1013 | > 1×1013 |
| 300ºC | 1×1010 | 1×1010 | ||
| 500ºC | 2×105 | 2×105 | ||
| Dielectric strength | KV/mm | 17 | 9.4 | |
| Dielectric constant (1Mhz) | (E) | 29 | 28 |
Where are Ceramic Structural Parts Mainly Used?
Our product production is mainly divided into 3 steps, forming - finishing - metallization. The production flow chart is shown below.
What is Metallization of Ceramic Structural Parts?
Ceramic surface metallization combines the good mechanical properties of ceramics and the excellent electrical and thermal conductivity of metal materials. It not only has the excellent properties of high strength, high wear resistance, high temperature resistance and small thermal expansion coefficient of ceramic materials, but also has the plasticity and toughness properties of metal materials.
Jinghui has accumulated more than ten years of experience in the field of metallized ceramic structural parts, and can produce various specifications of metallized ceramic structural parts according to customers' drawings, with superior performance. Our customers are very recognized for our product quality.
