Results 71 to 80 of about 38,620 (247)

A Dislocation Perspective on Strength and Toughness in Ceramics

Advanced Engineering Materials, EarlyView.
Dislocations in ceramics enjoy a long but yet under‐appreciated history. The three research waves for dislocations in ceramics highlight the topic evolution over the last 90 years. This review focuses on the impact of dislocation on strength and toughness in ceramics.
Xufei Fang
wiley   +1 more source

Preparation and Performance of Conductive Copper Ink Based on Chemical Deoxidization

Chemical Engineering Transactions, 2018
This paper adopts the improved liquid-phase chemical deoxidization to prepare nano-copper powder used as principal conducting material instead of nano-silver particles in conductive ink of printed electronics.
Tianhua Li, Hongbo Hu
doaj   +1 more source

Feasibility of Nitrogen as a Carrier Gas for Inconel Cold Spray in Hydropower Application

Advanced Engineering Materials, EarlyView.
N2, despite being nearly two orders of magnitude cheaper than He, is a feasible carrier gas for cold spray Inconel coatings in hydropower repair applications when higher gas temperature and pressure are used. Reducing powder size significantly improved cavitation resistance, while the addition of fine chromium carbide particles further enhanced erosion
Tianhao Wang, Mayur Pole, Tingkun Liu, Kenneth A. Ross, Christopher B. Smith   +4 more
wiley   +1 more source

Micro-precision additive manufacturing of copper powder using femtosecond laser pulses [PDF]

EPJ Web of Conferences
Green and blue lasers have seen increased use in manufacturing of copper. They offer great advantages compared to common IR lasers especially in additive manufacturing.
Leuthard Valentin, Zeyen Manuel, Resan Bojan   +2 more
doaj   +1 more source

Influence of Si Content and Milling Duration on the Microstructure and Mechanical–Tribological Properties of AlCoCrFeNiSi High‐Entropy Alloys

Advanced Engineering Materials, EarlyView.
Si‐doped AlCoCrFeNi high‐entropy alloys are synthesized by mechanical alloying to reveal the effect of Si content and milling time on phase evolution, microstructural refinement, and tribological behavior. A transition from FCC to BCC structure, significant grain refinement, and enhanced hardness and wear resistance are achieved, with the 4 at% Si ...
Mustafa Okumuş, Mehmet Emin Demir, Sercan Özpınar   +2 more
wiley   +1 more source

Particle Size Distribution of Copper Nanosized Powders Prepared by Pulsed Wire Discharge

IEEJ Transactions on Fundamentals and Materials, 2005
Copper nanosized powders have been prepared by pulsed wire discharge (PWD). The charging voltage and ambient gas pressure dependence on the particle size distribution has been investigated. The particle size ranged from 10 to 100 nm, and the distribution profile agreed with that of log-normal distribution.
Murai, Keiichi, Cho, Chuhyun, Suematsu, Hisayuki, Jiang, Weihua, Yatsui, Kiyoshi   +4 more
openaire   +2 more sources

Microstructure, Thermal Transport, and Dry‐Sliding Tribology of Powder‐Metallurgy Al7075 Composites Reinforced With Sol–Gel‐Derived ZnO–rGO Hybrid Nanoparticles

Advanced Engineering Materials, EarlyView.
Sol–gel‐derived ZnO–rGO hybrid nanoparticles enable Al7075 powder‐metallurgy composites to achieve concurrent gains in hardness and thermal conductivity while markedly lowering friction and wear. The hybrid architecture couples ZnO‐based load support with rGO‐assisted lamellar sliding and heat spreading, revealing a promising route toward lightweight ...
Bunyamin Aksakal, Cevher Kursat Macit, Merve Ayık, Hakan Tutumlu   +3 more
wiley   +1 more source

Microscopic characterization of oxygen content accumulation and powder recyclability in selective electron beam melting of copper

Frontiers in Materials
In this study, the oxygen content accumulation and powder recyclability in selective electron beam melting (SEBM) of copper were systematically investigated using standard characterization and image recognition techniques. The behavior of recycled copper
Yuanhu Gu, Yuanhu Gu, Yuanhu Gu, Haiyang Yuan, Haiyang Yuan, Haiyang Yuan, Zhiji Song, Zhangping You, Zhangping You, Zhangping You, Jianquan Xie, Shizhong Xu, Mingjian Wang   +12 more
doaj   +1 more source

Active Corrosion Protection of Sintered AA7075 Aluminum Alloy via Mn Powder Addition

Advanced Engineering Materials, EarlyView.
AA7075 containing Mn‐rich particles is fabricated via spark plasma sintering using AA7075 and Mn powders. Corrosion resistance is evaluated through dip‐and‐dry tests using 0.1 M NaCl (pH 6.0), and mass loss decreases with increasing Mn addition. Mn‐rich particles function as a source of Mn ions, and formation of Mn‐accumulation films on Cu‐containing ...
Ko Ebina, Masashi Nishimoto, Izumi Muto
wiley   +1 more source

Enhancing Low‐Temperature Performance of Sodium‐Ion Batteries via Anion‐Solvent Interactions

Advanced Functional Materials, EarlyView.
DOL is introduced into electrolytes as a co‐solvent, increasing slat solubility, ion conductivity, and the de‐solvent process, and forming an anion‐rich solvent shell due to its high interaction with anion. With the above virtues, the batteries using this electrolyte exhibit excellent cycling stability at low temperatures. Abstract Sodium‐ion batteries
Cheng Zheng, Qian Yao, Yanan Sun, Hongyu Lv, Zhongchao Bai, Guoliang Zhang, Nana Wang, Jian Yang   +7 more
wiley   +1 more source