Al 8Si 20hBN Powder Description:
Al 8Si 20hBN Powder is a unique alloy powder engineered for abradable coating applications within clearance control systems. Formulated with a blend of aluminum, silicon, and hexagonal boron nitride (hBN), it offers exceptional properties ideal for use in various engines, replacing conventional abradable materials. With a service temperature capability of up to 450°C (842°F), this powder provides superior erosion resistance and optimized abradability against a range of blade materials, including titanium alloys. Its incorporation of hBN as a lubricant enhances friction reduction at high speeds, minimizing wear on rotating components while maximizing gas path efficiency. Furthermore, the AlSi matrix fosters improved corrosion resistance, particularly beneficial in marine environments. This powder's formulation ensures effective clearance control, crucial for maintaining seal integrity and enhancing operational performance in demanding applications.
Al 8Si 20hBN Powder Specifications:
Nominal Chemistry
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Al Si hBN
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Nom. Particle Size Distr.(µm)
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-212 +22
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Morphology
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Spheroidal
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Max. Service Temperature (°C)
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450
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Achieved Macrohardness
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45 - 70 HRY
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Al 8Si 20hBN Powder Applications:
1. Aerospace Industry: In gas turbine engines, aircraft engines, and other aerospace applications to improve efficiency and reduce wear on rotating components.
2. Marine Industry: For marine gas turbine engines and other maritime propulsion systems to enhance corrosion resistance and operational longevity.
3. Industrial Machinery: In high-performance machinery where clearance control is critical for maintaining seal integrity and minimizing frictional losses.
4. Automotive Sector: In high-temperature engine components to enhance durability and reduce frictional heating, thereby improving overall engine efficiency.
5. Energy Generation: Within power generation turbines and other energy production systems to optimize performance and extend operational lifespan.
Al 8Si 20hBN Powder Packing:
Our Al 8Si 20hBN Powder is carefully handled during storage and transportation to preserve the quality of our product in its original condition.
Al 8Si 20hBN Powder FAQ:
Q1: What are the key benefits of using Al 8Si 20hBN Powder in abradable coatings?
A1: Al 8Si 20hBN Powder offers enhanced erosion resistance, improved abradability, superior corrosion resistance, and reduced frictional heating compared to conventional abradable materials. It helps optimize clearance control in seal areas and maximizes gas path efficiency in engine applications.
Q2: What is the recommended application temperature range for Al 8Si 20hBN Powder?
A2: Al 8Si 20hBN Powder is suitable for use in applications with service temperatures of up to 450°C (842°F). It is specifically designed to withstand high temperatures encountered in engine environments while maintaining its performance and integrity.
Q3: How does the inclusion of hexagonal boron nitride (hBN) enhance the performance of Al 8Si 20hBN Powder?
A3: Hexagonal boron nitride acts as a lubricant within the powder matrix, reducing frictional heating and improving abradability. It also contributes to weakening the interparticle bond strength within the aluminum-silicon matrix, enhancing friability, and ensuring effective clearance control.
Q4: Can Al 8Si 20hBN Powder be used in marine applications?
A4: Yes, Al 8Si 20hBN Powder is well-suited for marine environments due to its excellent corrosion resistance properties. It can be employed in marine gas turbine engines and other maritime propulsion systems where corrosion protection is crucial for prolonged operational lifespan.
Q5: What are the advantages of using Al 8Si 20hBN Powder over other abradable coating materials?
A5: Al 8Si 20hBN Powder offers a superior combination of properties, including erosion resistance, abradability, corrosion resistance, and friction reduction. Its formulation provides improved performance and durability compared to traditional abradable materials, making it a preferred choice for clearance control systems in various engine applications.