Ni 17.5Cr 5.5Al 2.5Co 0.5YO Powder Description:
Ni 17.5Cr 5.5Al 2.5Co 0.5YO Powder is a high-performance composite powder designed for creating self-bonding coatings with exceptional oxidation and corrosion resistance at temperatures up to 980°C (1800°F). The addition of chromium enhances oxidation resistance, while aluminum and cobalt improve self-bonding properties and reduce the high residual stresses in nickel-chromium alloys. During the spraying process, yttria reacts with aluminum to form a ductile Al2O3-Y2O3 complex ceramic oxide, which increases the high-temperature cohesive strength of the coating and provides flexibility for applications that require bending or flexing.
Ni 17.5Cr 5.5Al 2.5Co 0.5YO Powder Specifications:
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Nominal Chemistry
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Ni 17.5Cr 5.5Al 2.5Co 0.5YO
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Nom. Particle Size Distr.(µm)
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-150 +45
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Morphology
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Irregular
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Max. Service Temperature (°C)
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980
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Range of Apparent Density (g/cm3)
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3.25
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Ni 17.5Cr 5.5Al 2.5Co 0.5YO Powder Applications:
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Protective Barriers: Used as a protective barrier coating in environments subjected to high temperatures and corrosive conditions, such as gas turbines, industrial furnaces, and other high-temperature industrial processes.
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Bond Coats for Thermal Barrier Coatings: Serves as a bond coat for ceramic thermal barrier coatings in aerospace and power generation industries, enhancing the adhesion of ceramic top coats to metal substrates and providing an intermediate layer that mitigates thermal expansion differences.
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Oxidation and Corrosion Resistance: Applied to components exposed to oxidative and corrosive environments, such as turbine blades, combustion liners, and exhaust components in both aerospace and automotive industries.
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High-Temperature Applications: Suitable for applications requiring materials that maintain their integrity and performance at temperatures up to 980°C (1800°F), such as heat exchangers and other high-temperature equipment.
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Flexibility-Dependent Uses: Ideal for applications where mechanical flexibility and high-temperature cohesive strength are important, due to the formation of a ductile Al2O3-Y2O3 complex ceramic oxide. This includes flexible joints and dynamic components exposed to thermal cycling.
Ni 17.5Cr 5.5Al 2.5Co 0.5YO Powder Packing:
Our Ni 17.5Cr 5.5Al 2.5Co 0.5YO Powder is carefully handled during storage and transportation to preserve the quality of our product in its original condition.
Ni 17.5Cr 5.5Al 2.5Co 0.5YO Powder FAQ:
Q1: What are the primary benefits of using Ni 17.5Cr 5.5Al 2.5Co 0.5YO Powder for coatings?
A1: The primary benefits include excellent oxidation and corrosion resistance at high temperatures (up to 980°C or 1800°F), enhanced self-bonding properties due to aluminum and cobalt, and improved high-temperature cohesive strength and flexibility from the formation of Al2O3-Y2O3 complex ceramic oxides.
Q2: How does the addition of yttria benefit the coating performance?
A2: Yttria reacts with aluminum during the spraying process to form a ductile Al2O3-Y2O3 complex ceramic oxide. This enhances the high-temperature cohesive strength of the coating and provides flexibility, making it ideal for applications requiring mechanical flexing and resistance to thermal cycling.
Q3: What spraying techniques can be used to apply Ni 17.5Cr 5.5Al 2.5Co 0.5YO Powder?
A3: Plasma spraying is the most common technique used to apply this powder, as it allows for the formation of high-quality, self-bonding coatings with excellent adhesion and uniformity.
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