summarize
Due to its superior performance and versatility, alumina ceramics have become a cornerstone material for many industries. Whether you're in manufacturing, aerospace, electronics or any other industry, the decision to use alumina ceramics can significantly impact the efficiency and quality of your products. Here are ten reasons why choosing alumina ceramics is a wise investment:
1. Extremely high hardness:Aluminum oxide ceramics have exceptional hardness, making them highly resistant to wear. This property ensures a longer service life and reduces the need for maintenance, resulting in cost savings over time.
2. Excellent thermal conductivity:Alumina ceramics have excellent thermal conductivity that promotes efficient heat transfer, making them ideal for high-temperature applications such as furnace linings, kiln furniture and heat exchangers.
3. Chemically inert:Aluminum oxide ceramics are chemically inert, which means they are corrosion resistant and unaffected by many harsh chemicals. This resistance makes them suitable for use in environments where there is regular contact with corrosive substances.
4. Electrical insulation:Due to their insulating properties, alumina ceramics are widely used in electrical and electronic components, including insulators, substrates and circuit boards. Their excellent dielectric strength and stability ensure reliable performance in demanding electrical applications.
6. Biocompatibility:In biomedical applications, alumina ceramics are favored for their biocompatibility and inertness in the human body. They are used in dental implants, joint replacements and various medical devices with minimal risk of adverse reactions.
7. Low coefficient of friction:Aluminum oxide ceramics have a low coefficient of friction, which reduces friction and wear in mechanical systems. This property is highly beneficial in applications such as bearings, seals and sliding parts.
8. High dielectric strength:Aluminum oxide ceramics have high dielectric strength, allowing them to withstand high voltages without electrical breakdown. This characteristic is essential for insulation applications where reliability and safety are critical.
9. Environmental sustainability:Aluminum oxide ceramics are environmentally friendly materials because they are inert and non-toxic. Their durability and longevity help to minimize the need for frequent replacement, thereby minimizing waste generation.
10. Wide range of applications:Alumina ceramics are used in a variety of industries, from automotive and aerospace to electronics and medical devices. Their versatility and superior performance make them the first choice for critical components in a variety of manufacturing processes.
Aluminum oxide performance parameters
Mechanical properties:
| sports event | unit (of measure) | 95% Aluminum Oxide | 99% Aluminum Oxide | 99.5% Aluminum Oxide |
|---|---|---|---|---|
| color | "one" radical in Chinese characters (Kangxi radical 1) | fig. reactionary | yellow (color) | yellow (color) |
| intensity | g/cm” | 3.7 | 3.85 | 3.9 |
| durometer | GPa | 13.7 | 15.2 | 15.7 |
| compressive strength | MPa | 2000 | 2160 | 2350 |
| bending strength | MPa | 280 | 310 | 350 |
| Fracture toughness | MPa.m1/2 | 3-4 | 3-4 | 4.5 |
| Young's modulus | GPa | 320 | 360 | 370 |
| Sumbi, Hawaiian volcano | "one" radical in Chinese characters (Kangxi radical 1) | 0.23 | 0.23 | 0.23 |
Thermal properties:
| sports event | unit (of measure) | 95% Aluminum Oxide | 99% Aluminum Oxide | 99.5% Aluminum Oxide |
|---|---|---|---|---|
| Maximum operating temperature | ℃(without mechanical load) | 1650 | 1650 | 1650 |
| Thermal conductivity@20℃ | W/(m・K) | 24 | 29 | 32 |
| Coefficient of linear thermal expansion | 40-400°C = 10~6/°C | 7~8 | 7~8 | 7~8 |
| specific heat | J/(kg・K) | 780 | 790 | 780 |
| thermal shock resistance | ℃ (to be inserted in this book) | 200 | 200 | 200 |
Electrical properties:
| sports event | unit (of measure) | 95% Aluminum Oxide | 99% Aluminum Oxide | 99.5% Aluminum Oxide |
|---|---|---|---|---|
| dielectric constant | 1MHz | 9.4 | 9.9 | 9.9 |
| dielectric strength | V/m | 15 x 10^6 | 15 x 10^6 | 15 x 10^6 |
| dielectric loss | 1MHz | 4 x 10^-4 | 2 x 10^-4 | 1 x 10^-4 |
| Volume resistance@20℃ | Ω・cm | ＞10^14 | ＞10^14 | ＞10^14 |
| Volume Resistance@500℃ | Ω・cm | ＞10^8 | ＞10^8 | ＞10^10 |
In short, the many benefits of alumina ceramics make them indispensable in modern industrial environments. Whether you prioritize durability, thermal conductivity, chemical resistance, or electrical insulation, alumina ceramics offer comprehensive solutions to meet your needs. Make the smart choice for your business by incorporating alumina ceramics into your manufacturing process today.
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