What are the main aspects of chemical corrosion resistance of Macor machinable ceramics

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Macor is a high-performance machinable ceramic material developed by Corning Corporation in the United States, with excellent mechanical properties, electrical insulation, and chemical corrosion resistance. It is widely used in aerospace, semiconductor, chemical, medical equipment and other fields.

Basic characteristics of Macor machinable ceramics
Macor is composed of fluorite mica and borosilicate glass, combining the high strength of ceramics with the processability of glass. Its main characteristics include:
-High temperature resistance (able to work at 800 ° C for a long time)
-Excellent electrical insulation
-Low thermal expansion coefficient
-Good mechanical strength
-Excellent chemical corrosion resistance

Macor’s chemical corrosion resistance performance
The chemical corrosion resistance of Macor makes it suitable for harsh environments, manifested in the following aspects:
Acid resistant corrosion
Macor exhibits good tolerance to most inorganic and organic acids, such as:
-Hydrochloric acid (HCl): almost unaffected by corrosion at low concentrations
-Sulfuric acid (H ₂ SO ₄): stable at moderate concentrations, but may be affected in high-temperature concentrated sulfuric acid
-Nitric acid (HNO ∝): has good corrosion resistance at room temperature
-Hydrofluoric acid (HF): Macor is not resistant to hydrofluoric acid and should be avoided from contact
alkali corrosion resistance
Macor has good tolerance to weak alkaline solutions such as sodium hydroxide (NaOH) and potassium hydroxide (KOH), but may experience slight corrosion in high temperature and high concentration alkaline solutions.
Corrosion resistance to organic solvents
Macor exhibits extremely high stability towards most organic solvents such as ethanol, acetone, benzene, xylene, etc., without swelling or degradation.
Resistant to oxidizing and reducing environments
Macor can maintain stability in both oxidizing environments (such as ozone and hydrogen peroxide) and reducing environments (such as hydrogen), making it suitable for semiconductor and chemical equipment.
Salt and seawater corrosion resistance
Macor hardly corrodes in salt spray environments and seawater, making it suitable for marine engineering and ship equipment.

The application advantages of Macor’s chemical corrosion resistance
Due to its excellent chemical corrosion resistance, Macor has solved problems that traditional metal and plastic materials cannot cope with in multiple fields:
Chemical industry
-Used for manufacturing corrosion-resistant valves, pump bodies, and reactor liners
-Replace stainless steel and titanium alloys to reduce equipment wear and tear in acidic and alkaline environments
Semiconductor Manufacturing
-Used for wafer processing equipment, resistant to strong acids (excluding hydrofluoric acid) and plasma corrosion
-As an insulating bracket, to avoid metal ion contamination
medical equipment
-Used for surgical instruments, dental equipment, and resistant to corrosion by disinfectants such as alcohol and hydrogen peroxide
-Good biocompatibility, will not release harmful substances due to corrosion by body fluids
EADS
-Used for rocket nozzles, high-temperature sensors, resistant to fuel and oxidizer corrosion
-Maintain stability in extreme environments and reduce maintenance needs

The chemical corrosion resistance of Macor’s machinable ceramics makes it an ideal material for harsh environments, especially in the fields of chemical, semiconductor, medical, and aerospace, where it has irreplaceable advantages. Its excellent acid resistance, alkali resistance, and solvent resistance, combined with easy processing characteristics, provide engineers with high-performance solutions, effectively extending equipment life and reducing maintenance costs.

Brudeze Ceramics supplies and sells a wide range of high-quality quartz glass, including alumina ceramics, zirconia ceramics, silicon nitride ceramics, aluminum nitride ceramics, silicon carbide ceramics, boron carbide ceramics, bioceramics, machinable ceramics, etc. We can meet the customization requirements of various ceramic products.