Results 51 to 60 of about 19,432 (262)

Wet Mechanochemical Processing of Celestine using (NH4)2CO3

Sakarya Üniversitesi Fen Bilimleri Enstitüsü Dergisi, 2017
In this study, traditional (univariate) method of processing to the wet mechanochemical treatment were applied to obtain both SrCO3 and (NH4)2SO4 from celestite (SrSO4)-(NH4)2CO3-H2O mixtures in a planetary ball mill.
Deniz Bingöl , Salih Aydoğan, Seda Karayünlü Bozbaş   +2 more
doaj   +1 more source

Robust Electrocaloric Performance Enabled by Highly‐Polar Frustrated Nanodomains in NaNbO3‐Based Ferrodistortive Relaxor

Advanced Functional Materials, EarlyView.
P4bm framework in NaNbO3‐Ba(Ti, Hf)O3 ferrodistortive relaxor entails short‐range and highly‐polar ferrodistortive orders. The abundant highly‐polar orders facilitate to increase entropy change, and robust octahedral oxygen tilt enables to impede thermal perturbations.
Feng Li, Changshun Dai, He Qi, Jiecheng Liu, Xiaoming Shi, Heng Zhou, Qiong Yang, Mingsheng Long, Lei Shan, Chunchang Wang, Jianli Wang, Zhenxiang Cheng   +11 more
wiley   +1 more source

Study on heat transfer behavior and thermal breakage characteristic of the charge in ball mills

Advances in Mechanical Engineering, 2021
Ball mill is the widely used comminution device for the size reduction of iron ore particles, yet the underlying mechanisms of heat transfer and thermal breakage inside the mills heretofore are not deeply understood.
Tongqing Li, Zixin Yin, Guiyi Wu
doaj   +1 more source

Support‐Controlled Reaction Pathways via Dynamic Sulfur‐Mediated Interfaces for Selective Urea Electrolysis

Advanced Functional Materials, EarlyView.
Sulfur‐doped graphitized carbon nanofibers act as adaptive catalyst–support platforms, enabling dynamic sulfur‐mediated reconstruction and strong metal–support interactions. This unique behavior enhances catalyst stability and controls reaction pathways, achieving highly selective urea oxidation (∼92% N2) coupled with efficient hydrogen evolution ...
Melanie Guillén‐Soler, Lucía Vizcaíno‐Anaya, Ahmad Tayyebi, José Manuel Vila‐Fungueiriño, María del Carmen Giménez‐López   +4 more
wiley   +1 more source

Realisation of energy saving potential at mining enterprises on the basis of optimal intramill filling [PDF]

E3S Web of Conferences
The authors present the development of an automated system for controlling the loading of the output mill of pebbles and scrap of the beneficiation plant of JSC Lebedinsky GOK on the basis of measurement of bearing vibration signals.
Starykh Svetlana, Minakova Irina, Derkach Natalia, Taranenko Maksim, Ermolaev Denis   +4 more
doaj   +1 more source

Shaping Matter with Acoustic Waves: From Particles to Functional Structures

Advanced Functional Materials, EarlyView.
Acoustic‐directed assembly is reviewed as a materials‐oriented strategy for organizing particles, polymers, metals, and biological systems into functional structures. The review distinguishes reversible manipulation from permanent structure formation through medium fixation, particle fixation, and in situ material generation, highlighting routes toward
Avraham Kenigsberg, Shelly Zlotnikov, Maya Fiorentino, Yuval Elias, Ornit Nagler‐Avramovitz, Hagay Shpaisman   +5 more
wiley   +1 more source

Determination of the granulometric composition parameters of the grinding product in a ball mill

MATEC Web of Conferences, 2018
The article deals with the issue of the formation of the grain composition of the comminuted material inside the drum of a ball mill. The approach to the calculation of the grain composition at its transition from a larger fraction from a smaller ...
Sharapov Rashid
doaj   +1 more source

Experimental Study on the Grinding Rate Constant of a Ball Mill: Effects of Feed Size and Ball Diameter [Translated]†

KONA Powder and Particle Journal, 2014
The grinding rate constant is one of the important factors needed to measure or evaluate a grinding process. It has been found that the decreasing rate of the feed size is described by a first-order equation in the ...
Yoshiteru Kanda, Kiichi Simodaira, Naoya Kotake, Yasushi Abe   +3 more
doaj   +1 more source

Redirecting Nano‐Silicon Agglomeration: Dual‐Carbon Design Triggers Self‐Adaptive Nanoporous Si Sponge for Enhanced Lithium Storage

Advanced Functional Materials, EarlyView.
This study addresses silicon anode degradation using an engineered nSi/Gr/C dual‐carbon matrix. By restricting SEI infiltration, the architecture redirects silicon agglomeration into a beneficial structural self‐adaptive activation. During cycling, silicon nanoparticles self‐organize into a resilient nanoporous sponge. This dynamic network accommodates
Wei Zhang, Yuxia Zhong, Wen Ren, Lei Zhang, Yexin Pan, Mitch Guijun Li, Gary J. Cheng, Ruohan Yu   +7 more
wiley   +1 more source

High Performance Durable Vanadium Dioxide Spectral Selective Modulation Smart Windows

Advanced Functional Materials, EarlyView.
Crystallinity‐enhanced VO2 nanoparticles with a self‐limited amorphous oxidation shell achieve an order of magnitude durability improvement and high spectral selective modulation performance (luminous transmittance of 28.5%, solar modulation of 10.5%, and mid‐infrared emissivity modulation of 0.5) for smart windows.
Bin Li, Di Zhang, Guanya Wang, Rong Liu, Shouqin Tian, Xiujian Zhao, Zhimei Sun, Yi Long   +7 more
wiley   +1 more source