Alumina Ceramics (Al₂O₃)
What is Alumina Ceramics (Al₂O₃) ？
Alumina ceramic, or aluminum oxide (Al₂O₃), is a high-performance ceramic known for its hardness, wear resistance, and mechanical strength. It excels in high-temperature environments, with good thermal conductivity and shock resistance. As an excellent electrical insulator, it’s widely used in electronics for substrates and insulators.
Its chemical inertness and corrosion resistance make it ideal for harsh chemical environments. Applications span industries such as electronics, mechanical components, thermal systems, and medical implants, where durability and reliability are crucial.
Table of contents
Tell us your requirements, and we will custom design ceramic parts that meet your needs.
Custom Alumina Ceramic Parts By Shape
Ceramiforge specializes in crafting custom alumina ceramic components tailored to diverse industry needs. Our expertise allows us to deliver a wide array of shapes, including alumina boats, crucibles, dishes, plates, pipes, tubes, bars, rods, foam, and discs. Whether you require precision-engineered components for high-temperature applications, chemical resistance, or specialized designs, we ensure exceptional quality and durability. With advanced manufacturing techniques and a commitment to customization, Ceramiforge helps procurement professionals achieve optimal performance for their unique applications. Partner with us to bring your vision to life with reliable, tailored alumina ceramic solutions designed to meet your exact specifications.
Alumina Boat
High-purity alumina boat designed for high-temperature applications in material testing, chemical analysis, and thermal evaporation. Ideal for laboratories and industrial processes requiring excellent thermal stability and corrosion resistance.
Alumina Crucible
Perfect for melting, sintering, and thermal experiments in metallurgy, ceramics, and chemical industries. Withstands extreme temperatures and ensures precise results in demanding laboratory or industrial settings
Alumina Dish
Premium alumina dish for high-temperature material testing, chemical reactions, and thermal treatments. Suitable for laboratories and industrial processes requiring exceptional heat resistance and chemical inertness.
Alumina Pipe/Tube
High-strength alumina pipe/tube designed for fluid transport, insulation, and high-temperature applications in chemical, electrical, and industrial processes. Provides outstanding thermal stability and corrosion resistance.
Alumina Plate
Excellent thermal and electrical insulation. Ideal for use in kilns, furnaces, and electronic applications, ensuring reliability under extreme conditions.
Alumina Ball or Sphere
Solid alumina bar with exceptional wear resistance and thermal stability, perfect for use in precision equipment, industrial tools, and high-temperature environments.
Alumina Rod
Ideal for laboratory setups, and high-temperature insulation. Combines excellent strength, thermal stability, and chemical resistance for versatile applications.
Alumina Foam
Alumina foam for filtration, catalyst support, and thermal insulation in chemical, environmental, and industrial processes. Offers superior heat resistance and efficiency.
Custom Alumina Ceramic Parts By Properties
Our products are designed to excel in various industries, offering exceptional properties such as Ceramic Mechanical Seals, Wear-Resistant Ceramics, High-Temperature Ceramics, and Metallized Ceramics. Whether you require superior durability, thermal stability, or enhanced conductivity, our team delivers precision-engineered solutions to match your application. With advanced manufacturing techniques and extensive expertise, we ensure optimal performance and quality for industries like aerospace, electronics, and industrial machinery. Choose CeramiForge for reliable, customized ceramic solutions that meet the most demanding requirements.
Ceramic Mechanical Seals
Durable and corrosion-resistant seals ideal for pumps and compressors in chemical, oil, and water industries, ensuring reliable performance and extended equipment lifespan
Wear-Resistant Ceramics
High-strength ceramics designed to withstand abrasion, perfect for mining, material handling, and industrial machinery applications, reducing maintenance costs and enhancing durability.
High Temperature Ceramics
Heat-resistant ceramics capable of operating in extreme temperatures, suitable for aerospace, power generation, and high-temperature furnaces, ensuring stable performance and safety
Structural Ceramics
Advanced ceramics offering superior strength and lightweight properties, widely used in aerospace, automotive, and medical devices for enhanced efficiency and reliability.
Metallized Ceramics
Ceramics with metallic coatings for high-strength bonds, ideal for electronic components, vacuum devices, and specialized industrial applications requiring robust thermal and electrical performance.
Custom Alumina Ceramic By Applications
Thermostat Ceramics
Excellent thermal stability for thermostats, ensuring accurate temperature control in appliances and industrial systems.
Sensor Ceramics
High-sensitivity ceramics ideal for pressure, temperature, and motion sensors, widely used in automotive, aerospace, and medical devices.
E-cigarette Components
Heat-resistant and non-toxic ceramics designed for vaping devices, providing enhanced durability and purity for a better user experience.
Electro-vacuum Device
Insulating ceramics for vacuum tubes and electronic devices, ensuring high-performance and reliability in demanding electrical applications.
Ceramic Lamp Parts
Durable and heat-resistant ceramics for lamp holders and insulators, ensuring safety and extended lifespan in lighting systems
Ceramic Substrates
Thermal-conductive and insulating ceramic layers for electronic circuits, widely used in power electronics and high-frequency applications.
Ceramic Tube for Fuses
High-strength and heat-resistant ceramic tubes for electrical fuses, providing excellent protection against short circuits and overloads.
New Energy Industry
Tailored for renewable energy applications, including battery components and fuel cell systems, promoting sustainability and efficiency.
Alumina Ceramic Technical Details
Material Features / Properties
| Composite | (wt %) | 99% | 99.5% | 99.8% |
| Color | White or Ivory | White or Ivory | White or Ivory | |
| Density | g/cm 3 | 3.82 | 3.9 | 3.92 |
| Hardness | HRA | 83 | 85 | 85 |
| Flexural Strength | Mpa (psi*10 3 ) | 375 | 386 | 381 |
Technical Parameters
| Items | Test Conditions | Unit or Symbol | 99% AL2O3 | 95% AL2O3 | 90% AL2O3 | Zirconia | Steatite | Silicon Carbide |
| Volume Density | — | g/cm3 | ≥3.70 | ≥3.62 | ≥3.40 | ≥5.90 | ≥2.60 | ≥3.08 |
| Tightness | — | Pa·m³/s | ≤1.0×10-11 | ≤1.0×10-11 | ≤1.0×10-11 | – | – | – |
| Liquid Permeability | — | — | Pass | Pass | Pass | Pass | – | |
| Flexural Strength | – | MPa | ≥300 | ≥280 | ≥230 | ≥1100 | ≥120 | ≥400 |
| Elastic Modulus | – | GPa | – | ≥280 | ≥250 | ≥220 | – | 400 |
| Poisson Ratio | – | – | – | 0.20～0.25 | 0.20～0.25 | – | – | – |
| Thermal Shock Resistance | 800℃( Room Temperature) Cycle: 10 times | Pass | Pass | Pass | – | – | – | |
| Coefficient of Linear Expansion | 20℃～100℃ | ×10-6 K-1 | – | – | – | ≤8 | – | |
| 20℃～500℃ | ×10-6 K-1 | 6.5～7.5 | 6.5～7.5 | 6.5～7.5 | 6.5～11.2 | – | – | |
| 20℃～800℃ | ×10-6 K-1 | 6.5～8.0 | 6.5～8.0 | 6.3～7.3 | – | 4 | ||
| 20℃～1200℃ | ×10-6 K-1 | – | 7.0～8.5 | – | – | – | – | |
| Coefficient of Thermal Conductivity | 20℃ | W/(m·k) | – | – | – | – | – | 90～110 |
| 1000℃ | ||||||||
| Dielectric Constant | 1MHz 20℃ | – | 9.0～10.5 | 9.0～10 | 9.0～10 | – | ≤7.5 | – |
| 1MHz 50℃ | – | – | 9.0～10 | – | – | – | – | |
| 10GHz 20℃ | – | 9.0～10.5 | 9.0～10 | 9.0～10 | – | – | – | |
| Volume Resistivity | 100℃ | Ω·cm | ≥1.0×1013 | ≥1.0×1013 | ≥1.0×1013 | – | ≥1.0×1012 | – |
| 300℃ | ≥1.0×1013 | ≥1.0×1010 | ≥1.0×1013 | – | – | – | ||
| 500℃ | ≥1.0×109 | ≥1.0×108 | — | – | – | – | ||
| Disruptive Strength | D.C | kV/mm | ≥17 | ≥15 | ≥15 | – | ≥20 | – |
| Chemical Durability | 1:9HCl | mg/c㎡ | ≤0.7 | ≤7.0 | – | – | – | – |
| 10%NaOH | mg/c㎡ | ≤0.1 | ≤0.2 | – | — | – | – | |
| Grain Size | – | μm | – | 3~12 | – | – | – | – |
What Set Ceramitechforge Apart ？
Larger Capacity,Better Price
Take advantage of our annual 5 million industrial ceramics. Reliable supply, high quality, and timely delivery to enhance competitiveness
OEM/ODM Services
We provide custom industrial ceramics tailored to diverse applications, ensuring superior quality, reliability, and performance in your specific industry.
Factory Direct Price
Access unbeatable savings with direct-from-factory pricing, ensuring a competitive edge and cost efficiency for your business.
Certificated Quality
Guaranteed excellence with certified quality, ensuring reliability and customer satisfaction for your brand and business.
Fast Delivey in 5 Days
Experience rapid fulfillment with our 5-day delivery, keeping your supply chain efficient and customers satisfied
24hx7 Engineer Support
Ensure seamless production with 24/7 engineer support, providing quick resolutions and maintaining operational efficiency
See to Believe
Our Advanced Industrial Ceramic Factory
Step01: Product Design
Step02: Slurry Melting
Step03: Ball Mill Process
Step04: Drying Process
Step05: Load Blanks on Ceramic
Step06: Sintering Process
Step07: Vibratory Washing
Step08: Warehouse & Logistics
Why Choose Ceramicforge ?
As a leading OEM/ODM Industrial Ceramics manufacturer based in Xin Hua, Hunan Province,China. With 20 years of dedicated expertise, our factory specializes in innovative, patent-backed Industrial Ceramic solutions. We excel in OEM services, allowing customization to fit your project requirements precisely. Annually producing over 50 million units, we ensure each product integrates cutting-edge technology with eco-friendly efficiency. Our ISO9001, ISO14001, CE, certifications testify to our commitment to quality. Partner with Ceramitechforge to benefit from our advanced manufacturing capabilities and drive your projects with superior, sustainable Ceramic solutions.
- 20 Years Expertise
- ISO14001,ISO9001,CE Certified
- 50 Million Cermics Per Year
- 400+ Skillful Workers
- 24h x7 Online Support
Our Workflow
What is Our Leads Time ?
Step 1: Product Design Communication (3-7 days)
Collaborate closely with our design experts to transform your vision into reality. Our streamlined communication ensures your specifications are met precisely, resulting in bespoke industrial ceramics tailored to your brand’s unique requirements, enhancing your product line and competitive edge.
Step 2: Engineer Ceramic Sampling (7-14 days)
Receive meticulously engineered ceramic samples for evaluation. This process guarantees that our products meet your quality standards before bulk manufacturing, allowing you to make informed decisions, minimize risks, and ensure the final product aligns perfectly with your needs
Step 3: Pay The Bill (within 1 day)
Streamline your project timeline with our efficient payment process. Completing your payment within one day ensures there are no delays, so we can move forward quickly with manufacturing your Industrial Ceramics.
Step 4: Bulk Manufacturing (30-45 days)
Benefit from our state-of-the-art manufacturing facilities capable of producing high-quality industrial ceramics in large volumes. Our efficient production processes ensure timely delivery, helping you meet market demands and maintain a steady supply chain.
Step 5: Shipping (10-15 days)
Enjoy reliable and timely shipping services that ensure your products reach their destination safely and on schedule. Our comprehensive logistics support minimizes delays and enhances your ability to meet customer expectations and market demands effectively.
Want to know how to compress lead times?
With just a click, unlock a world of swift solutions! Connect with our engineers effortlessly to tailor-make a speedy industrial ceramics experience.
Payment & Order Questions
Most Popular Questions
While alumina ceramics may have a higher upfront cost than some metals, their longevity, reduced maintenance, and superior performance in harsh environments often result in lower total cost of ownership (TCO).
Alumina ceramics are used in a variety of industries, including:
Electronics and semiconductors
Automotive (e.g., sensors, insulators)
Medical and dental (e.g., implants, surgical tools)
Aerospace and defense
Industrial machinery (e.g., wear-resistant components)
Energy and power generation
Alumina ceramics offer a balance of cost, performance, and versatility. While zirconia has higher toughness and silicon carbide offers better thermal conductivity, alumina excels in wear resistance, electrical insulation, and cost-effectiveness for many applications.
Yes, alumina ceramics can be tailored in terms of purity (e.g., 96%, 99%, or 99.5% Al₂O₃), shape, size, and surface finish to meet specific application requirements. Custom machining and finishing options are also available.
Alumina ceramics are excellent electrical insulators with high dielectric strength, making them ideal for substrates, insulators, and components in electronic devices and high-voltage systems.
Yes, alumina ceramics are highly resistant to most chemicals, including acids and alkalis, making them suitable for use in corrosive environments such as chemical processing and laboratory equipment.
Lead times vary depending on the complexity and volume of the order. Standard components may ship within 2-4 weeks, while custom or large-volume orders may take longer. Expedited options are often available.
The choice of alumina grade depends on factors such as:
Required mechanical strength
Thermal and electrical properties
Purity level (e.g., 96% vs. 99.5%)
Environmental conditions (e.g., temperature, chemical exposure)
Our team can help you select the optimal grade for your needs.
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