Hunan Guoci New Material Technology Co., Ltd.
| Property | Performance | Practical Application |
|---|---|---|
| High Purity | ~99.8% Al₂O₃ content, low impurity levels | Suitable for semiconductor, vacuum, and high-purity media environments |
| Excellent Electrical Insulation | High electrical resistivity, low dielectric loss | Used for high-voltage insulation and electrode isolation |
| High-Temperature Resistance | Stable for long-term use in high-temperature oxidizing atmospheres | Furnace components, heating equipment parts |
| Corrosion Resistance | Stable against most acids, bases, and corrosive gases | Chemical processing, electroplating, and wet-process equipment |
| High Hardness & Wear Resistance | Resistant to erosion by powders and mechanical scratching | Wear-resistant bushings, guide components |
| Moderate Thermal Conductivity & High Brittleness | Lower thermal shock resistance compared to silicon nitride or silicon carbide | Exercise caution during rapid temperature changes (thermal cycling) or mechanical impact |
Compared to 95% alumina, the 99.8% grade offers superior insulation stability, corrosion resistance, high-temperature stability, and better control over metallic impurities; however, it comes at a higher cost and is somewhat more difficult to machine.
1. Semiconductors and Vacuum Equipment
Used for insulating bushings within vacuum chambers, wafer-handling spacers, gas distribution cylinders, and corrosion-resistant liners. Its low metallic impurity content minimizes contamination, making it ideal for equipment used in processes like etching, deposition, and ion implantation.
2. Industrial Furnaces and Heating Equipment
Serves as sheaths for heating elements, support bushings for furnace interiors, protective liners for thermocouples, and high-temperature isolation cylinders; capable of long-term operation in oxidizing atmospheres.
3. Electronic and Electrical Insulation
Leveraging its insulating and thermal-conductive properties, it is used for high-voltage insulating cylinders, electrode isolation sleeves, mounting bushings for heating elements, and insulating supports in power supply equipment—utilizing its high electrical resistance and heat tolerance.
4. Chemical Processing and Corrosive Environments
Employed as liners for pumps and valves, flow-directing cylinders, bushings for agitator shafts, internal components for filters, or protective tubes for thermocouples in corrosive media; it offers superior resistance to acids, bases, and corrosive gases compared to metals.
5. Sensors and Instrumentation
Functions as a protective housing or isolation sleeve for gas sensors, oxygen sensors, and high-temperature probes, providing both electrical insulation and protection against environmental erosion.
6. New Energy and Battery Testing
Utilized in high-temperature test fixtures, insulating bushings for battery clamps, and isolation components exposed to electrolyte-corrosive environments (subject to specific media compatibility and temperature profile requirements).
7. Wear-resistant mechanical components
Used as wear-resistant bushings and guide sleeves in equipment for powder transport, grinding, and cutting; these components reduce metal wear and contamination, while their high wear resistance significantly extends the service life of the equipment.
8. Medical and bioengineering
High-purity alumina exhibits biocompatibility and can be used for applications such as artificial joints and dental implants.
9. Aerospace
Used in the manufacture of high-temperature and wear-resistant engine components or thermal protection systems.
+86 181 0845 7259
marketing@guociceramic.com
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