Alumina Ceramic
Alumina ceramics (alumina alumina or aluminum alumina) are primarily composed of aluminum oxide (Al2O3). Our advanced alumina ceramics are made by
high-temperature sintering of selected alumina powders.
Excellent quality and price!
Alumina Ceramic
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What is Alumina Ceramic
The molecular weight of alumina is 102, and its chemical formula is Al2O3. This is a widely used material, and the main raw material of alumina ceramics is alumina. The melting point of alumina is 2100℃, which gives alumina ceramics excellent high-temperature stability! Therefore, alumina ceramics can be used in various high-temperature industries, and are often made into high-temperature furnace tubes, heating elements, thermocouple protection tubes, etc.
In addition to thermal stability, alumina also has excellent electrical insulation, which makes alumina ceramics widely used in some electrical equipment, the most common of which is ceramic substrates, insulators and other components in the semiconductor industry.
The hardness of alumina is comparable to that of diamond, and it is a very hard material, which gives alumina ceramics excellent wear resistance. Combined with chemical inertness, alumina ceramics can be used in harsh high-intensity environments as well as in easily corrosive environments, and are excellent materials!
Alumina Aluminium Oxide
Ceramic Product Display
New Products of Alumina Ceramics
Ultra-thin alumina substrate has high hardness and high insulation, and can be used for a variety of purposes, such as high-frequency circuits, high-power electronic devices, sensors, sensitive components, etc.
The aluminum oxide robotic arm is the robotic arm component of the robot. Alumina robotic arms have the characteristics of high strength, wear resistance, and corrosion resistance.
Large ring-shaped structural parts made of alumina materials are widely used in technology and scientific research.
99 ultra-thin alumina substrate
Alumina ceramic robotic arm
Alumina ring-shaped large parts
Aluminum Oxide Ceramic Feature Box
High Hardness
Strong wear resistance, durable and not easy to wear.
Excellent Thermal Conductivity
The thermal conductivity at room temperature is 30~40W/(m·K), which is higher than that of steel, copper and aluminum.
Good Chemical Stability
Resistant to acid, alkali and salt corrosion.
High Temperature Stability
Withstands 1600℃ high temperature and has high temperature stability.
Alumina ceramics of different purity
Gorgeous can provide you with alumina ceramics of various purity levels. Common alumina purity grades include: 88-90% alumina, 92% alumina, 95% alumina, 96% alumina, 99% alumina, 99.7% alumina and 99.95% alumina.
Common products:
Heat shields, wear-resistant plates, high-temperature electrical insulators, insulators, electronic components and substrates, semiconductor components, bearings, seals, water valves, valve cores, ceramic nozzles, thermocouple tubes, wear-resistant parts.
Specially customized precision ceramic metal composite products:
We provide ceramic-to-metal integration solutions that can create high-standard composite structural products with precision ceramics, such as electrical feedthroughs, vacuum feedthroughs, and solid sealing technology solutions.
Aluminum oxide mechanical properties
| Name | Alumina | |||
| Purity | 99.95% | 99.7% | 99% | 95% |
| Mohs hardness | 9 | 9 | 9 | 8.8 |
| Compressive strength（Mpa） | 3500 | 2000 | 1600 | 1200 |
| Tensile strength（MPa） | 300-500 | 200-300 | 100-250 | 70-150 |
| Bending strength（Mpa） | 500-600 | 250-350 | 100-250 | 100-150 |
| Poisson’s Ratio | 0.23 | 0.23 | 0.22 | 0.2 |
| Wear resistance | Very good | Good | Good | Good |
Alumina physical properties
| Name | Alumina | |||
| Purity | 99.95% | 99.7% | 99% | 95% |
| Thermal expansion coefficient (25°C-800°C) 10-6 /°C |
7.5-9.5 | 8.2-10.2 | 8.0-9.8 | 8.5-10.5 |
| Thermal expansion coefficient (25°C-300°C) 10-6 /°C |
6.5-8.0 | 7.2-8.7 | 7.0-8.5 | 7.5-9.0 |
| Maximum stable working temperature | 1750 | 1700 | 1500 | 1500 |
| Thermal conductivity (normal temperature 25°C) W/（m·K） |
45 | 30 | 20 | 15 |
| Thermal conductivity (high temperature 1000°C) | 30 | 20 | 15 | 10 |
| Dielectric constant | 10 | 9 | 8 | 7 |
| Resistivity (25°C) | >1014 | >1014 | >1014 | >1014 |
Why choose GORGEOUS custom alumina ceramics
GORGEOUS has 16 years of experience in the production and processing of alumina ceramics. We have been focusing on producing and processing precision ceramic products, improving technology, saving energy and increasing efficiency, and reducing costs.
Our team has 32 engineers and 8 experts. We have advanced manufacturing equipment, such as three-dimensional coordinate inspection machines, 3KW optical laser cutting machines, 3D CNC processing and other equipment, allowing us to quickly provide high-quality solutions and customized services.
All our alumina ceramic products undergo strict quality testing and comply with ISO, CE standards, etc. Guaranteed to be of high quality and safe to use.
We provide standard and non-standard alumina ceramics in size, design, and structure. If you need customized alumina ceramics, please feel free to contact GORGEOUS!
Application of Alumina Ceramics in Different Industries
Alumina ceramics are widely used in various fields such as electronics, chemical industry, mechanical engineering, medical devices, research and laboratory environments.
Electronics
Capacitors, insulators, radio frequency circuit substrates, ceramic substrates, heat dissipation materials, electronic ceramic parts, seals, varistors, photoelectric ceramic components, etc. These materials and components play vital roles in electronics, from storing energy to managing electrical current to providing protection and support, they form the core of modern electronic devices and systems.
Chemical
Catalyst support materials, filters, crucibles, and analytical chemical reagent bottles are indispensable and important items in the field of chemistry. These chemical experimental equipment have a wide range of applications, not only supporting scientific research and experimental teaching, but also providing necessary equipment and tools for various industrial production and quality control, promoting the development and application of chemical science.
Mechanical Engineering
Bearings, mechanical seals, cutting tools, ceramic shafts, ceramic sliders, ceramic gears, ceramic nozzles, liners and various ceramic parts play a vital role in the field of mechanical engineering. These ceramic parts not only improve the performance and reliability of mechanical equipment, but also reduce maintenance costs and energy consumption, promoting the continuous innovation and progress of mechanical engineering technology.
Medical Device
Artificial joints, medical ceramic catheters, medical ceramic blades, ceramic stents and ceramic filters are important applications in the medical field. The continuous innovation and application of these medical ceramic products provide new options and possibilities for the development of medical technology and patient treatment, making important contributions to human health and well-being.
Research and Laboratory
Ceramic heaters, crucibles, ceramic fixtures, reagent bottles, and ceramic filters are important equipment and tools widely used in various laboratory and industrial scenarios. These ceramic equipment and tools play an irreplaceable role in scientific research, chemical analysis and industrial production, providing necessary support and guarantee for experiments and production.
One-Stop Alumina Ceramic Parts Fabrication Services
15+ Years of Experience. High Precision and OEM Design. Professional R&D Team. Competitive Price.
Alumina Ceramic Production Process
Are alumina ceramics environmentally friendly and safe?
Answer:Alumina ceramic is a non-toxic and harmless high-grade ceramic. In each production process, we strictly follow environmental protection requirements to properly handle waste, recycle and utilize resources to avoid environmental pollution. We are determined to protect the ecological environment and produce advanced ceramic products that are safe and environmentally friendly.
Can alumina ceramics be customized? How to customize?
Answer: Alumina ceramics can be customized into a variety of shapes and functions. We are happy to provide you with a personalized, customized service. We can provide you with technical support and advice, transparent communication of the customization process, quality assurance and after-sales service, etc. About how to customize? You can also tell us your needs, or send us design drawings, and we will work with our professional team to provide you with customized product solutions and services in a timely manner!
What is the difference between alumina toughened zirconia (ATZ) and zirconia toughened alumina (ZTA)?
Zirconia toughened alumina (ZTA) and alumina toughened zirconia (ATZ) are both advanced composite ceramic materials. They differ mainly in the composition of the base ceramic phase and the reinforcement phase. The basic ceramic phase of ZTA is alumina (Al2O3), and its reinforcing phase is zirconia (ZrO2) particles, which have better thermal shock resistance and wear resistance. On the other hand, ATZ has higher corrosion resistance and chemical stability, and alumina-toughened zirconia has better toughness and higher cost.
Should I choose alumina or another material?
Compared with other ceramic materials, alumina ceramics have higher hardness and better wear resistance. They are common in daily life, have reasonable mining costs, are widely used, and have a high cost performance. If you want to use high-performance and low-cost materials, then alumina is very suitable!