How to Apply Zirconia Ceramic Plunger in Aerospace Field

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In the aerospace field, the performance requirements of materials are extremely strict, requiring high strength, high temperature resistance, corrosion resistance, lightweight and other characteristics. Zirconia ceramics (ZrO ₂), as a high-performance structural ceramics, has been widely used in key aerospace components due to its excellent mechanical properties and chemical stability. Zirconia ceramic plunger plays an important role in fuel system, hydraulic control, engine components and other fields due to its unique performance advantages.

Characteristics of zirconia ceramic plunger
The zirconia ceramic plunger is applicable to the aerospace field mainly due to the following key properties:
High strength and wear resistance
-Zirconia ceramics have high hardness (Hv ≥ 1200), wear resistance far exceeds that of metal materials, and can withstand high-frequency friction for a long time without deformation or wear.
-It is suitable for working environment with high pressure and high shear force, such as fuel pump, hydraulic system, etc.
High temperature resistance
-The melting point of zirconia ceramics is up to 2700 ° C, which can work stably in high temperature environments above 1000 ° C, and is suitable for high-temperature components such as aeroengines.
Corrosion resistance
-It has strong resistance to corrosive media such as acid, alkali, salt and aviation fuel to avoid corrosion of metal materials.
Lightweight
-The density (~6.0 g/cm ³) is lower than that of metal alloy, which helps to reduce aircraft weight and improve fuel efficiency.
Low coefficient of thermal expansion
-The coefficient of thermal expansion is close to metal, which can be used together with metal parts to reduce the risk of failure caused by thermal stress.

Application of zirconia ceramic plunger in aerospace field
Aviation fuel system
Application scenario: fuel pump, high-pressure fuel injection system
Problem solving:
-The traditional metal plunger is easy to wear in the high-pressure fuel environment, resulting in fuel leakage or reduced efficiency.
-Zirconia ceramic plunger is wear and corrosion resistant, can maintain high sealing performance for a long time, and improve fuel injection accuracy and engine combustion efficiency.

Hydraulic control system
Application scenario: aircraft landing gear, steering gear hydraulic system
Problem solving:
-The hydraulic system requires very high wear resistance and sealing performance of the plunger, and the metal plunger is easy to fail due to long-term high-pressure work.
-Zirconia ceramic plunger can withstand ultra-high pressure (≥ 50MPa), reduce leakage risk and improve system reliability.

Aeroengine components
Application scenario: turbine pump, high-temperature valve
Problem solving:
-The high-temperature and high-pressure environment inside the engine is easy to cause creep or oxidation of metal materials.
-Zirconia ceramic plunger is resistant to high temperature and oxidation. It is suitable for key components such as turbine pump and improves engine life.

Spacecraft propulsion system
Application scenario: rocket fuel pump, satellite attitude control thruster
Problem solving:
-The spacecraft propulsion system needs to work in extreme temperature (-200 ° C to 1000 ° C) and strong corrosive environment.
-Zirconia ceramic plunger is resistant to low temperature and thermal shock, and is suitable for liquid hydrogen/liquid oxygen fuel pump to ensure stable operation of the propulsion system.

Advantages of zirconia ceramic plunger compared with traditional materials
Wear resistance: excellent, long service life
High temperature resistance: stable above 1000 ° C
Corrosion resistance: acid and alkali resistance, fuel oil resistance
Weight: lightweight
Maintenance cost: low (long life)

Zirconia ceramic plunger plays a key role in aerospace fuel system, hydraulic control, engine and aerospace propulsion system with its advantages of high strength, high temperature resistance, corrosion resistance and lightweight. It not only solves the problem of wear and corrosion of traditional metal plunger, but also improves the reliability and service life of the system. It is an important choice for high-end aerospace components in the future.

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.