Results 51 to 60 of about 65,880 (307)
Statistical and kinetic study for leaching of covellite in a chloride media [PDF]
, 2019 Covellite is a relatively rare copper sulfide with slow dissolution kinetics. The present investigation used the surface optimization methodology to evaluate the effect of three independent variables (time, chloride concentration and sulfuric acid ...
Briceño Romero, Williams +5 more
core
Advanced Engineering Materials, EarlyView.This study investigates the tribological response of 60NiTi alloy under dry, water‐lubricated and high‐temperature conditions. The alloy exhibits decreasing wear volume and friction with increasing temperature due to the formation of protective oxide layers. The work clarifies dominant wear mechanisms and demonstrates the suitability of 60NiTi for high‐
Anthony Onyebuchi Okoani +2 more
wiley +1 more source
A Large Copper Artefacts Assemblage of Fazael, Jordan Valley
Documenta Praehistorica, 2020 Late Chalcolithic metallurgy developed in the southern Levant simultaneously with other crafts and new social institutions, reflecting advances in social organization, cults and technology. Until recently, copper items were mostly found in the Negev and
Danny Rosenberg +3 more
doaj +1 more source
Advanced Engineering Materials, EarlyView.Creep experiments at 900°C on coarse‐grained steel‐ceramic composites containing recycled magnesia reveal that higher ceramic volume fractions significantly enhance the creep resistance. Detailed EBSD investigations identify subgrain formation in the steel matrix as the dominant deformation mechanism.
Moritz Müller +6 more
wiley +1 more source
Studies of Soils and Vegetation on Non-ferrous Metallurgy Slag Dumps
International Journal of Bio-Resource and Stress Management, 2021 The metallurgical industry is one of the major pollution sources of natural ecosystems. Now the slag dumps of non-ferrous industries occupy huge areas all over the world.
Ekaterina Zolotova
doaj
Some Similarities / Differences between Steel Static and Virtual Brass Static Casting
Archives of Foundry Engineering, 2017 An innovative method for determining the structural zones in the large static steel ingots has been described. It is based on the mathematical interpretation of some functions obtained due to simulation of temperature field and thermal gradient field for
Kwapisiński P. +3 more
doaj +1 more source
Some Early Bronze Age stone moulds from Scotland [PDF]
, 2009 This paper presents details of a number of previously unpublished or relatively inaccessibly published Early Bronze Age stone moulds from Scotland. Viewed in the wider context of Early Bronze Age metalworking in Britain, they are important additions to ...
Cowie, Trevor, O'Connor, Brendan
core
Advanced Engineering Materials, EarlyView.High‐frequency (HF) welding of steel is limited by oxide inclusions that degrade weld quality. This study demonstrates, for the first time, the integration of a nonthermal Ar/H2 dielectric barrier discharge (DBD) plasma jet into HF welding. Local plasma treatment provides effective shielding and in‐situ oxide reduction, resulting in markedly fewer and ...
Viktor Udachin +4 more
wiley +1 more source
Beginning of the metal age in the central Balkans according to the results of the archeometallurgy [PDF]
Journal of Mining and Metallurgy. Section B: Metallurgy, 2009 The gradual development of the primary copper metallurgy in Balkans starts with production of small jewelry pieces and ends with the serial production of massive tools and weapons. It is confirmed that this metallurgy depended on the contemporary mining,
Jovanović B.
doaj +1 more source
Handbook of Establishing and Maintaining Oxygen‐Free Atmospheres
Advanced Engineering Materials, EarlyView.This study presents a practical framework for creating oxygen‐free atmospheres at ambient pressure using silane‐doped inert gases. The results show that ultra‐low oxygen levels and strongly reduced water content can be achieved through controlled silane dosing, drying systems, and sensor monitoring.
Sascha Jan Zimmermann +3 more
wiley +1 more source