Results 131 to 140 of about 160,665 (306)

Polynomial modelling of high-quality yet incomplete rare earth element data sets and a holistic assessment of REE anomalies

Scientific Reports
Rare earth elements (REEs) are powerful proxies used in many (bio-)geochemical studies. Interpretation of REE data relies on normalised REE patterns and anomaly quantification, and requires complete data.
David M. Ernst, Joachim Vogt, Michael Bau, Malte Mues   +3 more
doaj   +1 more source

Effects of grinding media on the surface roughness and flotation kinetics of lepidolite

Results in Surfaces and Interfaces
In this study, effects of ball and rod grinding on the surface roughness and flotation kinetics of lepidolite were investigated. Flotation tests revealed that the rod ground products had higher flotation efficiency than the ball ground products.
Xu Zhang, Yan Zheng, Jingyi Li, Guangli Zhu, Guosheng Li, Yijun Cao   +5 more
doaj   +1 more source

A Numerical–Experimental Approach for Multi‐Matrix Fiber‐Reinforced Plastics Characterization Using Finite Element Model Updating

Advanced Engineering Materials, EarlyView.
A numerical–experimental framework is developed for characterizing multi‐matrix fiber‐reinforced polymers (MM‐FRPs) combining epoxy and polyurethane matrices. Harmonic bending tests are integrated with finite element model updating (FEMU) to simultaneously identify elastic and viscoelastic material parameters.
Rodrigo M. Dartora, Tales V. Lisbôa, Axel Spickenheuer, Rogério J. Marczak, Jakson M. Vassoler   +4 more
wiley   +1 more source

Fizzy ore processing sequesters CO₂ while supplying critical metals. [PDF]

Proc Natl Acad Sci U S A, 2022
Wilson S, Hamilton JL.
europepmc   +1 more source

Thermodynamic Pathways of Nonequilibrium Solidification in Wire‐Arc Additive Manufacturing Fe‐Based Multicomponent Alloy Structures

Advanced Engineering Materials, EarlyView.
Geometry‐driven thermal behavior in wire‐arc additive manufacturing (WAAM) influences microstructural evolution during nonequilibrium solidification of a chemically complex Fe–Cr–Nb–W–Mo–C nanocomposite system. By comparing different deposits configurations, distinct entropy–cooling rate correlations, segregation, and carbide evolution are revealed ...
Blanca Palacios, Anthony Gonzalez, Aleksander Aleman, Tyler Dolmetsch, Tanaji Paul, Arvind Agarwal   +5 more
wiley   +1 more source

A review of the engineered treatment of red mud: Construction materials, metal recovery, and soilization revegetation

Results in Engineering
Red mud, known as bauxite residue, is an alkaline solid waste generated during alumina production. Globally, the stockpile of red mud is about 3 billion tons and is increasing at a rate of 150 million tons per year.
Kai Jia, Zhenxing Zhou, Shiv Vendra Singh, Chongqing Wang   +3 more
doaj   +1 more source

Occurrence Modes of Critical Metals (Li⁺ and Ge⁴⁺) in the Organic Molecular Structures of Coal: A Density Functional Theory Study. [PDF]

ACS Omega, 2023
Mu R, Wang S, Wang X, Zhao Y, Dong Z.
europepmc   +1 more source

Thermomechanical Fatigue and Creep–Fatigue Interaction of Inconel 718 Additively Manufactured by Laser Beam Powder Bed Fusion

Advanced Engineering Materials, EarlyView.
Thermomechanical fatigue tests of laser beam powder bed fusion (PBF‐LB) Inconel 718 show that the additively manufactured material reaches almost the lifetimes of conventionally‐rolled material under no‐dwell conditions. Introducing dwell times at the maximum temperature markedly reduces the lifetimes due to pronounced grain boundary sliding associated
Stefan Guth, Tomáš Babinský, Jan Lars Riedel, Wen Hao Kan, Aijun Huang, Martin Heilmaier, Ivo Šulák   +6 more
wiley   +1 more source

Fabrication of spherical W–ZrC powder for additive manufacturing by spray granulation combined with plasma spheroidization

Journal of Materials Research and Technology
In this study, a W–1%ZrC spherical powder for additive manufacturing was successfully fabricated by spray granulation combined with radio frequency (RF) plasma spheroidization. 3 μm tungsten powder and the nano-sized ZrC powder were spray granulated into
Xueni Gao, Zhe Mo, Zhenhua Hao, Rulong Ma, Pei Wang, Yongchun Shu, Jilin He   +6 more
doaj   +1 more source

Low‐Temperature Imidization of Polyimides (PI) for Scalable Manufacturing of Flexible Wearable Electronics

Advanced Engineering Materials, EarlyView.
Low‐temperature imidization of PEG‐modified polyimide enables fully screen‐printed, roll‐to‐roll fabrication of flexible electrodes on PET substrates, delivering robust mechanical durability and reliable ECG/EMG signal performance for wearable electronics.
Akib Abdullah Khan, Jong‐Hoon Kim
wiley   +1 more source