Results 71 to 80 of about 348,730 (268)

Influence of non-vacuum electric arc synthesis energy on the product of tungsten ore concentrate processing

Известия Томского политехнического университета: Инжиниринг георесурсов
Relevance. Caused by the problem of developing methods for obtaining tungsten carbide, especially from tungsten-containing waste. As a solution, a non-vacuum electric arc method is proposed. It is easy to operate and cheap compared to a direct analogue (
Alexander Ya. Pak, Aleksandra I. Kokorina, Yuliya L. Shanenkova, Ivan I. Shanenkov   +3 more
doaj   +1 more source

Evaluation of enamel surface roughness using different types of polishing system after orthodontic bracket debonding

Erbil Dental Journal, 2021
Background: returning surface of the enamel to its pre-orthodontic state after debonding of brackets without any damage to the texture of enamel is a clinical contest.
Maryam Fouad Bilal, Lanja Abubakir Ali, Deman Hasan Hamid, Rebin Ali Mohammed Amin   +3 more
doaj  

Ultrasonically Assisted Single Point Diamond Turning of Optical Mold of Tungsten Carbide

Micromachines, 2018
To realize high efficiency, low/no damage and high precision machining of tungsten carbide used for lens mold, a high frequency ultrasonic vibration cutting system was developed at first.
Zhanjie Li, Gang Jin, Fengzhou Fang, Hu Gong, Haili Jia   +4 more
doaj   +1 more source

Spatially Decoupled S‐Scheme and Schottky Heterojunction in CeO2/ZnIn2S4/WC for Synergistic Photocatalytic H2 Evolution and Benzyl Alcohol Oxidation

EcoEnergy, EarlyView.
This study introduces that the synergistic effect of strong interface electric field, spatially separated active site, and dual heterojunction of CZW can achieve a simultaneous improvement in photocatalytic hydrogen energy and high‐value chemical production.
Bojing Sun, Wenzhuo Ma, Shanshan Fan, Siyue Li, Zhengnan Qin, Xiaojuan Li, Dongfang Hou, Xiu‐qing Qiao, Dong‐Sheng Li   +8 more
wiley   +1 more source

Optimizing potassium polysulfides for high performance potassium-sulfur batteries

Nature Communications
Potassium-sulfur batteries attract tremendous attention as high-energy and low-cost energy storage system, but achieving high utilization and long-term cycling of sulfur remains challenging.
Wanqing Song, Xinyi Yang, Tao Zhang, Zechuan Huang, Haozhi Wang, Jie Sun, Yunhua Xu, Jia Ding, Wenbin Hu   +8 more
doaj   +1 more source

Advances in Design Strategy and Mechanism Insights for Alkaline Hydrogen Evolution Reaction: Multilevel Site Engineering and Structure–Activity Relationship

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
This review is about material design based on engineering multilevel sites from theoretical calculation and synthetic routes to mechanism, structure–activity relationship, challenges and perspectives for boosting hydrogen production in alkaline electrolyte. Electrolytic water splitting is a clean, carbon‐free method for producing green hydrogen and has
Ke Zhang, Hongying Luo, Yudong Du, Kehao Yu, Huayu Wu, Shimin Chai, Yanyan Liu, Yongfeng Wang, Jianchun Jiang, Baojun Li   +9 more
wiley   +1 more source

High Surface Area Tungsten Carbides: Synthesis, Characterization and Catalytic Activity towards the Hydrogen Evolution Reaction in Phosphoric Acid at Elevated Temperatures

International Journal of Electrochemical Science, 2014
Tungsten carbide powders were synthesized as a potential electrocatalyst for the hydrogen evolution reaction in phosphoric acid at elevated temperatures. With ammonium metatungstate as the precursor, two synthetic routes with and without carbon templates
Antonio Luis Tomas-Garcia, Qingfeng Li, Jens Oluf Jensen, Niels J. Bjerrum   +3 more
doaj   +1 more source

Selective laser melting of tungsten carbide reinforced maraging steel composite

Additive Manufacturing, 2018
In this work, tungsten carbide (WC) reinforced maraging steel matrix composites were in-situ manufactured by selective laser melting (SLM) from powder mixture.
N. Kang, Wen-You Ma, L. Héraud, M. El Mansori, Fu-Hai Li, Min Liu, H. Liao   +6 more
semanticscholar   +1 more source

Nanophotonic Biosensors and the Paradigm of Trans‐Scale Autonomous Bio‐Integrated Diagnostics for Addressing Health Complexities

Electron, EarlyView.
Physics‐driven advances in optical nanobiosensors for rapid, miniaturized, and point‐of‐care diagnostics for next‐generation decentralized and personalized healthcare based on sensor intelligence. ABSTRACT Public health emergencies and the escalating burden of chronic diseases necessitate a paradigm shift from centralized laboratory testing to rapid ...
Vishal Chaudhary, Harsh Sable, Sonu Sonu, Lakshita Phor, Reddicherla Umapathi, Pradeep Bhadola   +5 more
wiley   +1 more source

Research progress on flexible MXene‐based materials in advanced energy storage devices: From preparation strategies to device applications

FlexMat, EarlyView.
This review summarizes MXene synthesis and flexible electrode fabrication for FESDs, highlighting their potential owing to high conductivity and flexibility, and outlines future research directions. Abstract The rapid development of wearable and portable electronics has created demand for flexible energy storage systems (FESDs) that not only exhibit ...
Nanxi Miao, Ying Lu, Xing Gao, Lingzi Pan, Meng Gao, Chenxi Zhang, Ming Liu, Shizhong Wang, Zhongyu Weng, Huan Pang, Huijie Zhou   +10 more
wiley   +1 more source