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
Alumina ceramics are ceramics made from raw materials with a molecular weight of 102 and a chemical formula of Al2O3. Because this material has a melting point as high as 2100°C and a stable molecular structure, the alumina ceramics it forms have similar characteristics. Due to its high melting point, alumina ceramics are also used in high temperature resistant industries such as furnace linings, heating elements and thermocouple protection tubes. The wide application of alumina ceramics in modern industry is due to the excellent properties of alumina, which not only has high hardness, stiffness and wear resistance, but is commonly used in ceramic bearings, seals and cutting tools.
Moreover, it also performs well in special industries, such as the extensive use of its insulation in electrical equipment; and its excellent thermal stability, constant performance in thermal environments, and no alarm when it is “hot”, making it win It has occupied a place in the chip field and is widely used in components such as substrates and insulators in the semiconductor industry.
Alumina ceramics have now entered all walks of life, especially their harsh environment and fatigue resistance, which have made people look at alumina ceramics with a new eye and occupy a large share in the field of advanced ceramics. It has become an indispensable key component and the backbone. In addition, it has a unique skill and can become part of human parts. Because of its biocompatibility, alumina ceramics are also used in dental implants and knee joint replacements. Is this surprising to you?
By improving its composition and combining different manufacturing processes, the various properties of alumina ceramics have been greatly improved. According to customized requirements, alumina ceramics can be made into various forms, such as tiles, rods, tubes, plates and complex structural shapes.
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
Aluminum oxide has high hardness. The hardness of aluminum oxide is second only to diamond. The Mohs hardness of aluminum oxide is about 9, while the hardness of diamond is close to 10.
Excellent Thermal Conductivity
It has good thermal conductivity, with a thermal conductivity coefficient of 30~40 W/(m·K) at room temperature. The thermal conductivity of alumina is far superior to common thermal conductive materials such as steel, copper and aluminum.
Good Chemical Stability
Alumina ceramics have strong resistance to most acids, alkalis, salts and other chemical substances and will not corrode or dissolve. They can be prepared into thinner substrates, which is beneficial to the preparation of microelectronic devices.
High Temperature Stability
Alumina ceramics can maintain their stability and performance in high-temperature environments and have high melting points and thermal stability. At normal temperature, the melting point of alumina is 2050°C, while at high temperatures, its melting point can reach 2073°C
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 12 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
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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.
How does alumina ceramic compare to other ceramic materials?
Alumina ceramics have higher hardness and better wear resistance than other ceramic materials. They are more common in daily life, have suitable extraction costs, are more widely used, and are cost-effective.