Results 31 to 40 of about 709,087 (340)

Refining Principles and Technical Methodologies to Produce Ultra-Pure Magnesium for High-Tech Applications

Metals, 2019
During the last decade, magnesium-based medical implants have become the focal point of a large number of scientific studies due to their perceived favorable properties.
Seifeldin R. Mohamed, Semiramis Friedrich, Bernd Friedrich   +2 more
doaj   +1 more source

Computation-assisted analyzing and forecasting on impurities removal behavior during zone refining of antimony

Journal of Materials Research and Technology, 2020
High purity antimony (Sb) gains nowadays a rising interest for high-tech applications. Zone refining is commonly used as a reliable final purification step to achieve higher purity levels of Sb. However, the removal of arsenic (As) - the most troublesome
Xiaoxin Zhang, Semiramis Friedrich, Bin Liu, Tianxiang Huang, Bernd Friedrich   +4 more
doaj   +1 more source

Advance in ultrasonic spray pyrolysis (USP) for the synthesis of gold nanoparticles [PDF]

Vojnotehnički Glasnik, 2020
Introduction/purpose: Ultrasonic spray pyrolysis (USP) is usually used for the preparation of submicronic and nanosized gold powders. This is a simple method for a synthesis from an aerosol containing dissolved metallic salts such as gold chloride ...
Srećko R. Stopić, Bernd G. Friedrich
doaj   +1 more source

Role of hydrometallurgy and nanotechnology in environmental protection

Zaštita Materijala, 2016
Hydrometallurgy, sometimes called leaching, includes the selective dissolution of metals from their ores, concentrates and waste materials. Metal winning requires an individually optimized process based on acceptable productivity as well as on high ...
Srećko Stopić, Bernd Friedrich
doaj   +1 more source

Recycling and Processing of Waste Materials

Materials, 2023
Just a few days ago, the world population, as expected, surpassed 8 billion [...]
Paulina Wiśniewska, Aleksander Hejna, Mohammad Reza Saeb   +2 more
openaire   +2 more sources

Effect of operating temperature on direct recycling aluminium chips (AA6061) in hot press forging process [PDF]

, 2013
A method of solid-state recycling aluminum alloy using hot press forging process was studied as well as the possibility of the recycled chip to be used as secondary resources.
Ahmad, Mohd Hafizi, Ayop, Osman, Faizol, Zulbirri, Jusoh, Muzammil, Majid, Huda A., Mat Saman, Norhafezaidi, Rahim, Mohamad Kamal A., Yusoff, Zubaida, Zubir, Farid   +8 more
core   +1 more source

A Combined Pyro- and Hydrometallurgical Approach to Recycle Pyrolyzed Lithium-Ion Battery Black Mass Part 1: Production of Lithium Concentrates in an Electric Arc Furnace

Metals, 2020
Due to the increasing demand for battery raw materials such as cobalt, nickel, manganese, and lithium, the extraction of these metals not only from primary, but also from secondary sources like spent lithium-ion batteries (LIBs) is becoming increasingly ...
Marcus Sommerfeld, Claudia Vonderstein, Christian Dertmann, Jakub Klimko, Dušan Oráč, Andrea Miškufová, Tomáš Havlík, Bernd Friedrich   +7 more
doaj   +1 more source

Air recovery assessment on high-pressure pneumatic systems [PDF]

, 2016
A computational simulation and experimental work of the fluid flow through the pneumatic circuit used in a stretch blow moulding machine is presented in this paper.
Codina Macià, Esteban, Gámez Montero, Pedro Javier, Trujillo, J. A.   +2 more
core   +2 more sources

Early-stage recovery of lithium from spent batteries via CO2-assisted leaching optimized by response surface methodology

Scientific Reports
Recycling lithium (Li) from spent lithium-ion batteries (LIBs) due to the depletion of natural resources and potential toxicity is becoming a progressively favourable measure to realize green sustainability.
Ksenija Milicevic Neumann, Muhammad Ans, Bernd Friedrich   +2 more
doaj   +1 more source

Degradation Mechanism of Nickel-Cobalt-Aluminum (NCA) Cathode Material from Spent Lithium-Ion Batteries in Microwave-Assisted Pyrolysis

Metals, 2018
Recycling of Li-Ion Batteries (LIBs) is still a topic of scientific interest. Commonly, spent LIBs are pretreated by mechanical and/or thermal processing. Valuable elements are then recycled via pyrometallurgy and/or hydrometallurgy.
Fabian Diaz, Yufengnan Wang, Tamilselvan Moorthy, Bernd Friedrich   +3 more
doaj   +1 more source