Results 51 to 60 of about 1,601,986 (333)
Copper in Pre-Columbian Costa Rican metallurgy: A case study on gold-copper alloy and copper objects
Revista del Museo de AntropologiaIn the metalwork tradition of the Isthmo-Colombian area, which in its core comprises Costa Rica, Panama and north-western Colombia, copper plays an essential role.
Katrin Westner, Sabine Klein
doaj +1 more source
Desenvolvimento de material sinterizado à base de ligas ferro-cobre para aplicações em condutividade térmica [PDF]
, 2015 Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico, Programa de Pós-Graduação em Ciência e Engenharia de Materiais, Florianópolis, 2015O Cobre é um material bem conhecido e amplamente utilizado em componentes com a função
Ugarteche, Caroline Velasques
core
Advanced Engineering Materials, EarlyView.This study examines Invar composites reinforced with titanium carbide (TiC) and titanium nitride (TiN) using laser powder bed fusion (LPBF). It presents the influence of reinforcements on microstructure, tensile properties, and thermal expansion. Results show that TiC effectively strengthens Invar while maintaining low thermal expansion, whereas TiN ...
Ayodeji Nathaniel Oyedeji +3 more
wiley +1 more source
Refractories for the Metallurgy of Copper
, 2023 Copper in the molten state is a rather reactive metal, and it interacts with the refractory lining of the furnaces, but the copper slags and copper matter are much more reactive. The processes in primary metallurgy of copper (purification of copper matte to blister copper) and secondary metallurgy of copper (re-melting of cathode copper and alloying ...
openaire +1 more source
An introduction to copper extraction [PDF]
, 2008 The objective of this report is to provide an overview of copper extraction and demonstrate many of the practical applications and considerations related to low voltage motor selection and the implementation of a Control System to manage operation of a ...
Stewart, David Shaun
core
Anticorrosive evaluation of copper-iron mixtures processed by powder metallurgy
, 2021 Through the powder metallurgy process, copper and iron powders were mixed in the proportions Cu between 15% to 75% and iron from 25% to 85% that made up the binary material systems.
Operador, W +2 more
core +1 more source
Rapidly Solidified High‐Strength Invar 36 Prepared by Planar‐Flow Melt Spinning
Advanced Engineering Materials, EarlyView.The Invar 36 alloy was rapidly solidified using the planar‐flow melt‐spinning technique. Ribbon samples with thicknesses ranging from 20 to 160 mm were produced. As the grain size of the ribbon decreased to sub‐micron levels, the hardness increased by more than 2 times.
Bekir Akgül, Mehmet Kul
wiley +1 more source
The passivation of iron in ammoniacal solutions containing copper (II) ions [PDF]
, 2012 In the present study it was found that the presence of millimolar amounts of copper (II) ions in ammoniacal solutions leads to the spontaneous formation of a stable passive layer on metallic iron and iron alloys with nickel and cobalt, under conditions ...
Nikoloski, A.N., D'Aloya, A
core
Advanced Engineering Materials, EarlyView.HEA interlayers offer a versatile route for joining high‐performance structural materials. Their compositional and structural design regulates interfacial reactions, suppresses brittle IMCs, and improves metallurgical bonding. Sandwich interlayers further integrate defect healing with precipitation strengthening, enabling improved strength–ductility ...
Lin Yuan +4 more
wiley +1 more source
Innovative solutions for the extraction of technology metals from complex primary and secondary raw materials [PDF]
Tehnika, 2016 Presented compilation of scientific, theoretical and experimental results, promotes an innovative synergy of various metals and industrial activities in metallurgy, resulting in profitable transformation of byproducts and waste materials into resources.
Kamberović Željko J. +4 more
doaj +1 more source