Product details
Alumina ceramic structural components, simply put, are parts made primarily from alumina (Al₂O₃) with specific shapes and structures.
Alumina ceramics Part are not ordinary ceramics; they have a high alumina content, dense structures, and belong to the category of special ceramics.
The production process of alumina ceramic structural components is complex and precise. It requires selecting high-purity alumina ceramic powder as the raw material and undergoing multiple pretreatment processes such as grinding and sieving to obtain an appropriate particle size and distribution.
First is raw material preparation, where high-purity alumina powder is mixed with additives to ensure uniformity and stability of the raw materials. Next, the pretreated alumina ceramic powder is added to a solvent and stirred evenly to prepare a viscous slurry. The particle size and uniformity of the slurry have a significant impact on the quality of the final product.
Then, the slurry is poured into molds and formed into green bodies through processes such as vibration and pressing.
Various forming methods, including injection molding, extrusion molding, and pressing, can be selected depending on the shape and size of the alumina ceramic insulation products.
Finally, the formed alumina ceramic green bodies are sintered to achieve good density and mechanical properties. Controlling the sintering temperature and time is crucial, as too high a temperature may cause deformation or damage, while too low a temperature will fail to achieve densification.
Finally, precision processing is required, involving cutting, grinding, polishing, and other procedures to ensure that the structural components achieve accurate dimensional precision and surface quality requirements. Every step in the process needs strict parameter control, as any deviation in a single link can affect the performance of the final product.
Outstanding Performance of alumina part:
- 1.High hardness, wear-resistant champion: According to the Shanghai Institute of Ceramics, Chinese Academy of Sciences, the Rockwell hardness of alumina ceramics reaches HRA 80 - 90, second only to diamond.
- 2.Lightweight, little burden expert: Its density is only 3.5 g/cm³, about half that of steel. In equipment or structures with strict weight requirements, using alumina ceramic components can significantly reduce the load. For example, in the aerospace field, reducing weight means improving performance and lowering energy consumption.
- 3.High-temperature resistance, a "frequent guest" in hot environments: Alumina ceramics have excellent heat resistance, with a continuous use temperature exceeding 1000°C. In high-temperature industrial furnaces, metallurgy, and other high-temperature environments, it can maintain stable structure and performance without softening or deforming, continuing to fulfill its "duties."
- 4.Excellent electrical insulation, an "insulator" for current: It has high resistivity and excellent electrical insulation performance, with an insulation strength above 15 kV/mm. This characteristic makes it highly effective in the electronics and electrical fields, such as manufacturing insulating housings for electronic components and insulators, effectively preventing current leakage and ensuring safe operation of equipment.
Application Industries：
- Widely Applied, Demonstrating Great Potential Across Multiple FieldsElectronics and Information Technology: With excellent electrical insulation and thermal stability, alumina ceramic components are used to manufacture integrated circuit substrates, electronic packaging housings, etc. In electronic products such as smartphones and computers, they provide a stable working environment for internal precision electronic components, ensuring stable transmission of electronic signals.
- Mechanical Manufacturing: Its high hardness and wear resistance make it an ideal material for producing mechanical seals, bearings, cutting tools, and more. In high-speed and heavy-load mechanical parts, alumina ceramic components help reduce wear, improve mechanical efficiency, and extend service life.
- Aerospace: Lightweight, high-strength, and heat-resistant properties enable alumina ceramic components to be widely used in aircraft engine parts, satellite antenna supports, and thermal protection systems for spacecraft.
They contribute significantly to the lightweight and high-performance development of aerospace equipment.
- Medical Field: Due to good biocompatibility, alumina ceramic components can be used to make implants such as artificial joints and bone screws.
They have good compatibility with human tissue, minimizing the risk of rejection, aiding patient recovery, and improving quality of life.
- Energy Sector: In new energy vehicle battery modules, fuel cell components, and traditional energy petrochemical equipment, alumina ceramic components, with their corrosion resistance and high-temperature tolerance, ensure stable operation under complex conditions, supporting efficient energy production and utilization.Alumina ceramic components, with their outstanding performance, demonstrate immense potential across various fields.
As technology continues to advance and innovate, it is expected that they will play an increasingly important role, bringing more benefits to our lives and societal development.
Product Parameter Table
| The main chemical ingredient |
|
|
Al₂O₃ |
Al₂O₃ |
Al₂O₃ |
| Bulk Density |
|
g/cm³ |
3.6 |
3.89 |
3.4 |
| Maximum Use Temperature |
|
|
1450°C |
1600°C |
1400°C |
| Water absorption |
|
% |
0 |
0 |
< 0.2 |
| Flexural strength |
20°C |
MPa (psi x 10³) |
358 (52) |
550 |
300 |
| Coefficient of thermal expansion |
25 - 1000°C |
1×10⁻⁶/°C |
7.6 |
7.9 |
7 |
| Coefficient of thermal conductivity |
20°C |
W/m·K |
16 |
30 |
18 |
EN
