Rectangular alumina ceramic plate

Rectangular alumina ceramic plate, as the name suggests, refers to a ceramic plate with a rectangular shape and alumina as the main component. Alumina ceramic is a high-performance ceramic material known for its excellent physical and chemical properties.

Key features:
High hardness: Alumina ceramics have a very high hardness, with a Mohs hardness of up to 9, second only to superhard materials such as diamond and cubic boron nitride.
High wear resistance: Excellent wear resistance gives it an extremely long service life in high friction environments.
High mechanical strength: It has high bending strength and compressive strength, and can withstand large mechanical loads.
High temperature resistance: It has excellent high temperature resistance and can be used for a long time at temperatures above 1600 ℃.
High chemical stability: resistant to acid and alkali corrosion, chemically stable, and hardly reacts with all common acids and bases except hydrofluoric acid.
High insulation: Excellent electrical insulation performance, high electrical resistivity.
Biocompatibility: Good biocompatibility, can be used in fields such as medical implants.
Low coefficient of thermal expansion: Low coefficient of thermal expansion, good dimensional stability under temperature changes.

Common specification parameters:
Alumina content: generally above 90%. Depending on application requirements, the higher the content, the better the performance and the higher the price. Common types include 92 porcelain, 95 porcelain, 97 porcelain, 99 porcelain, etc.
Size: The size of rectangular alumina ceramic plates can be customized according to requirements, with common thicknesses ranging from 0.5mm to tens of millimeters. The length and width can also be cut according to needs.
Surface treatment: Different surface treatments such as polishing, grinding, sandblasting, etc. can be carried out to meet different application requirements.
Density: usually between 3.6-3.9 g/cm ³.
Color: Usually white, but other colors can also be made by adding coloring agents.

Application
Due to its excellent performance, rectangular alumina ceramic plates are widely used in various fields:

1. Electronic appliances:
   Substrate/Circuit Substrate: Utilizing its high insulation, thermal conductivity, and chemical stability, it is used for heat dissipation and insulation of electronic components.
   Vacuum device: Utilizing its high vacuum performance and high temperature resistance, it is used for vacuum capacitors, vacuum switches, etc.
   Spark plug insulator: utilizing its high insulation and high temperature resistance.
   Sensor components: Utilize their excellent physical and chemical stability.
2. Mechanical:
   Wear resistant parts: such as seals, bearings, nozzles, cutting tools, etc., utilizing their high hardness and high wear resistance.
   Mechanical seal: utilizing its high hardness and chemical stability.
   Mold: Utilizing its high hardness, high wear resistance, and high temperature resistance.
3. Metallurgy:
   High temperature furnace lining: utilizing its high refractoriness and chemical stability.
   Thermocouple protective sleeve: utilizing its high temperature resistance and airtightness.
   Pipeline for transporting molten metal: utilizing its high temperature resistance and corrosion resistance.
4. Chemical industry:
   Corrosion resistant containers and pipelines: utilizing their excellent acid and alkali corrosion resistance.
   Catalyst support: utilizing its high chemical stability and porosity.
5. Medical care:
   Artificial joints and dental implants: utilizing their high biocompatibility, wear resistance, and strength.
   Surgical knives: utilizing their high hardness and corrosion resistance.
   Dentures: Utilizing their high wear resistance, hardness, and biocompatibility.
6. Other:
   Laboratory vessels, such as crucibles, evaporating dishes, etc., utilize their high temperature resistance and chemical stability.
   Textile machinery: utilizing its high wear resistance.
   Aerospace: Utilizing its lightweight, high strength, high temperature resistance and other characteristics.

Customized description
Rectangular alumina ceramic plates can usually be customized according to specific customer needs. Here are some common customization options:
Size customization: Cut and process according to the specific length, width, and thickness dimensions provided by the customer.
Shape customization: In addition to the standard rectangle, it can also be cut into other shapes according to needs, such as circular, square, irregular, etc.
Hole customization: Different sizes and quantities of holes can be machined on ceramic plates according to requirements.
Surface roughness customization: Different surface treatments such as polishing, grinding, sandblasting, etc. can be carried out according to requirements to achieve different surface roughness requirements.
Customization of alumina content: Select ceramic plates with different alumina contents according to application requirements.
Special performance customization: For example, aluminum oxide ceramic plates with special conductivity, special thermal expansion coefficient, and other properties can be customized.
Batch customization: Mass production can be carried out according to customer needs.

Rectangular alumina ceramic plate is a high-tech material with excellent performance and wide applications in various fields. Through customized production, we can meet the personalized needs of different customers and provide reliable solutions for various industries. When selecting alumina ceramic plates, it is necessary to choose according to specific application scenarios and performance requirements, and communicate fully with professional suppliers to ensure obtaining the most suitable solution.