What are the disadvantages of alumina ceramic?

01 Jul.,2024

 

Advantages and disadvantages of Alumina Ceramics - CM Cera

Advantages and disadvantages of Alumina Ceramics

Release time: -05-17

Want more information on Alumina Foam Block? Feel free to contact us.

Advantages and disadvantages of Industrial Ceramics/ Alumina Ceramics

 

1. Rockwell hardness of alumina ceramics, measured by Shanghai Silicate Research of Institute of CAS(Chinese Academy of Sciences), is HRA80-90. Its hardness ranks second after diamond and far exceeds the wear resistance of wear-resistant steel and stainless steel.

 

2. The wear resistance of alumina ceramics, measured by Institute of Powder Metallurgy of Central South University, is 266 times that of manganese steel and 171.5 times that of high chromium cast iron. According to our customer investigation in the past ten years, lifetime of equipment extends more than 10 times than before by means of alumina ceramics.

 

3. The density of alumina ceramic is only half that of steel, which can greatly reduce the equipment load.

 

4. The property of high temperature resistance ensures alumina ceramics to be used at &#; for a long time.

 

If you want to learn more, please visit our website Aluminum Silicate Fiber.

5. Corrosion resistance of alumina ceramics is very strong.

 

6.Good electrical insulation performance, especially at high temperature, make sure per millimeter thickness of alumina ceramic able to withstand more than 8,000 voltage.

 

7. Alumina ceramic has low toughness and poor thermal shock resistance, and can not withstand sharp changes in temperature. ( Disadvantages)


For enquiry of our products,  us on  or learn more about our Alumina Ceramic products on http://www.cmcera.com/Alumina/

Advantages and Disadvantages of Alumina Ceramics

Alumina ceramics have many advantages.

They have excellent insulation, low high-frequency loss but good high-frequency insulation, heat resistance, small thermal expansion coefficient, high mechanical strength, and good thermal conductivity. Alumina ceramics have a high hardness, and the Rockwell hardness of alumina is HRA80-90, and the hardness is only inferior to that of diamond, far exceeding the wear resistance of wear-resistant steel and stainless steel. Alumina ceramics are also abrasion-resistant and ideal for wear-resistant applications. They are lightweight and have a wide range of applications, for example:

They are used in the electronics industry for passive components such as interconnection, resistances, and capacitors and are specifically employed in applications such as substrates for hybrid circuits, multi-layer interconnection circuits, materials for type II condensers, and hyper frequency resonators (mobile phones). Alumina ceramics are also used in the manufacture of textile wear parts and knives due to their extreme hardness and wear resistance. They are used widely in acid-resistant pump impellers, pump bodies, acid-carrying pipe linings, and valves because of their excellent chemical stability. Alumina ceramics are also used as an insulation material for electrical components.

Alumina ceramics are brittle because of excellent compression strength and low bending strength. Ceramics exhibit a linear elastic behavior and low fracture toughness, causing them to break without warning. The risk of ceramic fracture is determined by the initial flaws of the ceramic. However, alumina ceramic is light and its density is 3.5g / cm3, which is only half that of steel, which can greatly reduce the equipment load. Alumina ceramic is resistant to high temperature and can be used for a long time at a high temperature of degrees. Alumina ceramics have strong corrosion resistance.

Contact us to discuss your requirements of Order Fiberglass Filtration Filter Pouch. Our experienced sales team can help you identify the options that best suit your needs.