Basic Info.
Product Description
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?
How Our Ceramic Parts are Produced?
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.
What are the Methods of Metallization of Ceramic Structural Parts?
Common methods include Electroless Nickel Plating Method, Silver Firing Method, Mo-Mn Method and W-Au Method. Each method has its own advantages and disadvantages, and it needs to be considered comprehensively in practical applications to decide which method to use.
Introduction to Mo-Mn Method
The following is the general process of the Mo-Mn method applied to the surface of the ceramic structural parts.
Advantages of Mo-Mn Method
1. The process is mature and stable.
2. High bonding strength, especially suitable for applications under harsh mechanical and climatic conditions.
3. It can be repaired many times without damaging the metallization layer.
4. The requirements for solder, metallization paste formula and sintering atmosphere are not very strict, and the process is easy to master.
Why Choose Us?
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.
