Synthesis of Cu-Coated Ni-Based Amorphous Composite Powders by Gas Atomization and Spray Drying Process

Byoung Kee Kim; Yong Jin Kim; Jin Chun Kim

doi:10.4028/www.scientific.net/MSF.534-536.133

Paper Titles

Preparation and Characterization of Stable Dispersions of Ni Nanoparticles
p.117

Synthesis and Characterization of Branched Sulfonated Poly(ether Sulfone-Ketone) Copolymer and Organic-Inorganic Nano Composite Membranes
p.121

Synthesis and Properties of Multimetal Oxide Nanopowders via Nano-Explosive Technique
p.125

Synthesis of Aluminum Monohydroxide Nanofiber by Electrolysis of Aluminum Plates
p.129

Synthesis of Cu-Coated Ni-Based Amorphous Composite Powders by Gas Atomization and Spray Drying Process
p.133

Synthesis of Nano Metal Powder by Electrochemical Reduction of Iron Oxides
p.137

Synthesis of Ultra Fine TiC Powders by Carbothermal Reduction
p.141

The Atmosphere Effect on Synthesis of TiB₂ Particles by Carbothermal Reduction
p.145

The Development of Mono-Sized Micro Silicon Particles for Spherical Solar Cells by Pulsated Orifice Ejection Method
p.149

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Synthesis of Cu-Coated Ni-Based Amorphous Composite Powders by Gas Atomization and Spray Drying Process

Abstract:

Ni59Zr20Ti16Si2Sn3 bulk metallic glass (BMG) powders were produced by a gas atomization process, and ductile Cu powders were coated on the Ni-based BMG powders using a spray drying process in order to increase the ductility. Characteristics of the as-prepared powders with the atomization and spray drying process conditions were investigated. The atomization was conducted at 1450oC under the vacuum of 10-2 torr and the powders were mixed with water-soluble Cu nitrate. The mixture was sprayed at the temperature of 130oC to prepared initial powder. After reduction treatment, sub-micron size Cu powders were successfully coated on the surface of the atomized Ni BMG powders.