Overview
Nickel beads are precision-engineered spherical particles primarily composed of pure nickel or nickel-based alloys. Their uniform shape and high surface area make them ideal for applications requiring consistent performance, such as catalysis and conductive coatings. These beads are produced through atomization or chemical reduction processes, ensuring controlled size distribution (typically 0.1–5 mm). Industries value them for their durability and resistance to oxidation, even under extreme temperatures.
Physical and Chemical Properties
Nickel beads exhibit a distinctive silver-gray luster and maintain structural integrity up to 1455°C (melting point). Their density (8.908 g/cm³) and hardness (Mohs 4) contribute to wear resistance in abrasive environments. Chemically, nickel is inert to water and alkalis but dissolves in oxidizing acids like nitric acid. This reactivity is leveraged in catalytic processes, where beads act as substrates or active components.
Main Applications
In catalysis, nickel beads serve as supports for reactions like hydrogenation due to their porous surface and thermal stability. The electronics industry uses them in conductive pastes and EMI shielding. They are also embedded in wear-resistant coatings for industrial machinery. Emerging applications include battery electrodes and 3D printing powders, where purity (>99.5%) is critical.
Safety and Storage
Nickel beads require handling with nitrile gloves and goggles to prevent skin/eye contact. Dust inhalation risks necessitate fume hoods or respirators in powder form. Store in sealed containers away from moisture and acids to prevent oxidation. Label containers with CAS 7440-02-0 for regulatory compliance, especially in transport.
B2B Procurement Guide
When sourcing nickel beads, prioritize suppliers with ISO 9001 certification and batch-specific assay reports. Key specifications include particle size tolerance (±10%) and trace metal content (e.g., <0.1% iron). For bulk orders (100+ kg), negotiate pricing tiers and confirm lead times. Consider alloy variants (e.g., nickel-copper) for specialized needs, but verify compatibility with end-use conditions.
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