Nickel Powder Description
Nickel powder is a greyish-black fine powder composed of the minutest particles of the nickel metal. Commonly, this alloy finds its application in industries like electronics, aerospace, automotive, and chemical manufacturing. The powder is produced by atomizing or grinding solid nickel into smaller particles, the particle size ranging in order from a few micrometers to a few millimeters in size.
Pure Nickel Powder is a highly pure powder product, superior in thermal conductivity and electrical conductivity. Moreover, it exhibits very good corrosion resistance. It is malleable and ductile; hence, it may easily be beaten into various shapes.
Properties of Nickel
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Property
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Value / Description
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Density
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8.902 g/cm³
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Melting Point
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1453 °C
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Boiling Point
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2732 °C
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Ductility
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Good
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Hardness
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Medium
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Appearance
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Silvery-white metal
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Magnetism
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Magnetic
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Malleability
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Good
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Corrosion Resistance
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Good
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This table outlines the physical and chemical properties of the nickel element. The properties of nickel alloys and compounds depend on their specific composition and must be analyzed accordingly.
Key Advantages of Nickel Powder
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Classification
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Key Properties
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Pure Nickel Powder
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Good ductility, electrical & thermal conductivity, corrosion resistance
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Spherical Nickel Powder
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Excellent flowability, high density, uniform morphology
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Nickel-Based Alloy Powder
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High temperature resistance, high strength, corrosion resistance
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Nickel-Copper Alloy Powder
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Excellent corrosion resistance in seawater
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Nickel-Chromium Alloy Powder
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High electrical resistance, oxidation resistance
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Nickel-Aluminum Alloy Powder
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Exothermic reaction, high bonding strength
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Nickel-Iron Alloy Powder
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Extremely low coefficient of thermal expansion
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Nickel Powder Application
Nickel-based powder has a wide range of uses, thanks to its unique characteristics.
1. Pure Nickel Powder: Chemical catalysts, battery electrodes, magnetic materials, powder metallurgy components.
Nickel powder exhibits excellent catalytic activity, electrical conductivity, and sintering performance, making it a fundamental raw material for manufacturing chemical reaction catalysts, nickel-metal hydride/nickel-cadmium batteries, soft magnetic components, and various corrosion-resistant structural parts.
2. Spherical Nickel Powder: Metal 3D Printing, Electronic Conductive Paste, Metal Injection Molding (MIM), Catalyst Manufacturing, Surface Protective Coatings.
Spherical nickel powder serves functions in advanced manufacturing due to its unique spherical structure. It is the ideal material for metal 3D printing to ensure dense and uniform components. It is used in high-performance conductive pastes in electronics. Additionally, it is widely employed in metal injection molding for complex parts, as well as in catalysts and protective coatings.
3. Nickel-Based Alloy Powder (Inconel alloy powder): Aerospace engines, gas turbines, chemical reactors.
This represents its most high-end application field. Due to its exceptional high-temperature resistance, high strength, and high corrosion resistance, nickel-based alloy powder is often used in 3D printing or powder metallurgy to manufacture critical hot-end components for extreme environments, such as jet engine turbine discs, blades, and rocket engines.
4. Nickel-Copper Alloy Powder (Monel alloy powder): Marine components, seawater desalination, chemical pumps and valves.
Monel alloy powder possesses strong resistance to seawater corrosion and chloride-induced stress corrosion cracking. As a result, it is widely used in manufacturing marine pump shafts, heat exchanger pipes in seawater desalination plants, and corrosion-resistant pumps and valves in chemical processes.
5. Nickel-Chromium Alloy Powder: Heating wires, industrial and household heating elements.
Leveraging its high electrical resistivity and excellent high-temperature oxidation resistance, it efficiently converts electrical energy into thermal energy, making it a core material for manufacturing heating elements in industrial electric furnaces, household ovens, electric heaters, and other devices.
6. Nickel-Aluminum Alloy Powder: Thermal spray bonding layer, diamond tool matrix.
This is a functional alloy powder. During thermal spraying, its "exothermic reaction" characteristic enables strong bonding with the substrate, making it an ideal bonding layer. In diamond tool manufacturing, it serves as a matrix material, firmly encapsulating diamond particles.
7. Nickel-Iron Alloy Powder (Incoloy alloy powder): Precision instruments, semiconductor equipment, astronomical telescopes.
Incoloy alloy powder has an extremely low thermal expansion coefficient, allowing it to be used in manufacturing core components that require high dimensional stability under temperature variations, such as lithography machine platforms, large astronomical telescope mounts, and precision lasers.
Nickel Powder Precautions:
Oxidation Problems: At elevated temperatures, nickel powder can be oxidized easily; this could affect the functionality of the product for those applications designed to operate at high-temperature conditions.
Dust Explosion Hazard: Particles of fine nickel powder are hazardous concerning dust explosion when suspended in air and ignited by a flame or spark.
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Nickel Powder: Preparation, Uses and Selection Tips
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