Results 11 to 20 of about 1,601,986 (333)

Ice-core evidence of earliest extensive copper metallurgy in the Andes 2700 years ago [PDF]

open access: yesSci Rep, 2017
The importance of metallurgy for social and economic development is indisputable. Although copper (Cu) was essential for the wealth of pre- and post-colonial societies in the Andes, the onset of extensive Cu metallurgy in South America is still debated ...
A. Eichler   +5 more
semanticscholar   +4 more sources

Unifying Composition and Process Design: A Heterogeneous Graph Neural Network for Discovering High‐Performance Cu Alloys [PDF]

open access: yesAdvanced Science, EarlyView.
By overcoming the fixed‐path limitations of conventional machine learning, a heterogeneous graph neural network fundamentally reconstructs material data representation. Integrating variable processing sequences with intrinsic elemental features, this framework enables exploratory optimization across high‐dimensional spaces.
Jie Yin   +12 more
wiley   +2 more sources

Autonomous Solar Metallurgy for High‐Purity Gold Recovery from Electronic Waste [PDF]

open access: yesAdvanced Science, EarlyView.
Inspired by microbial strategies for metal uptake and biomineralization, defect‐rich copper sulfide (Cu31S16) functions as a solar metallurgical platform that unifies Au(III) capture, reduction, and self‐separation. The bioinspired design enables ultrafast gold recovery from electronic‐waste leachates and the spontaneous formation of millimeter‐scale ...
Chaopeng Liu   +7 more
wiley   +2 more sources

ARCHAEOLOGICAL REMAINS OF THE COPPER METALLURGY IN LOWER SILESIA [PDF]

open access: yes, 2013
Many traces of copper metallurgy, such as slag and other copper melts, can be found in the area of Lower Silesia. The research programme, which assesses the exact location and detailed inventory of the sites connected with mining and copper smelting in ...
A. Garbacz-Klempka   +4 more
semanticscholar   +3 more sources

The Effect of Copper on the Microstructure, Wear and Corrosion Resistance of CoCrCuFeNi High-Entropy Alloys Manufactured by Powder Metallurgy

open access: yesMaterials, 2023
This paper focuses on the microstructure, phase composition, mechanical, tribological and corrosion properties of high-entropy alloys (HEAs) in the CoCrCuFeNi system depending on copper content, which was varied from 0 to 20 at. % with an increment of 5%.
S. Mukanov   +5 more
semanticscholar   +1 more source

Application of Thionocarbamates in Copper Slag Flotation

open access: yesMetals, 2022
Thionocarbamates are the group of collectors that are mostly used for flotation of sulphide copper minerals, alone or in combination with xanthates depending on a mineralogical composition of the ore.
Zoran Štirbanović   +6 more
doaj   +1 more source

Effect of CNT Inclusion on the Thermo-Mechanical Behaviour of Cu-Ni-Zn-Sn Nanocomposite [PDF]

open access: yesIranian Journal of Chemistry & Chemical Engineering, 2023
In recent times, there has been an increasing interest in Carbon NanoTubes (CNTs) reinforced metal matrix composites due to their promising properties such as high Young’s modulus and tensile strength.
R. Geetha   +2 more
doaj   +1 more source

Effect of Copper Addition on the AlCoCrFeNi High Entropy Alloys Properties via the Electroless Plating and Powder Metallurgy Technique

open access: yesCrystals, 2021
To improve the AlCoCrFeNi high entropy alloys’ (HEAs’) toughness, it was coated with different amounts of Cu then fabricated by the powder metallurgy technique. Mechanical alloying of equiatomic AlCoCrFeNi HEAs for 25 h preceded the coating process.
M. Hassan   +4 more
semanticscholar   +1 more source

Enhanced mechanical strength of Cu–Sn alloy by Mg addition

open access: yesMaterials Research Express, 2021
In recent years, the commercially available Cu–Sn alloy has attracted great interest within the new energy vehicles and industrial robots industries because of its relatively excellent comprehensive performance as compared to those of Cu–Ag and Cu–Mg ...
Tao Wu   +6 more
doaj   +1 more source

Application of copper and its alloys in metallurgy

open access: yes, 2023
Primjena bakra i njegovih legura u metalurgiji ima značajan utjecaj na različite industrije. Bakar, kao izuzetno provodljiv metal, koristi se u elektrotehnici za izradu električnih vodiča, transformatora i elektromotora.
Cerovski, Lucija
core   +3 more sources

Home - About - Disclaimer - Privacy