Results 11 to 20 of about 19,923 (169)

Ultrahigh‐Strength Soft‐Magnetic NiFeCoAl Multi‐Principal Element Alloys Enabled by Multiscale Heterostructure Design

open access: yesRare Metals, Volume 45, Issue 4, April 2026.
ABSTRACT Soft‐magnetic materials (SMMs) are indispensable for electrification and sustainable energy systems, yet their inherent mechanical fragility fundamentally limits applications under severe mechanical stresses. Enhancing the yield strength of SMMs is essential to prevent the degradation in magnetic performance and failure from plastic ...
Nairan Wang   +6 more
wiley   +1 more source

Bi/Bi2O3 Nanoparticles In Situ Embedded in Carbon as Anode Materials for Fast and Long‐Lasting Sodium–Ion Storage

open access: yesRare Metals, Volume 45, Issue 4, April 2026.
ABSTRACT Bismuth anode materials are considered promising anode candidates for sodium–ion batteries (SIBs) due to their high theoretical capacity and appropriate working potential. Nevertheless, the significant volume expansion that occurs during the cycling process restricts its broader application in sodium–ion storage. Herein, Bi/Bi2O3 nanoparticles
Jiaju Lu   +3 more
wiley   +1 more source

Cobalt‐Based Metal Hybrid Encapsulated Micro‐Aluminum for Tailoring Combustion in Composite Solid Propellants

open access: yesRare Metals, Volume 45, Issue 4, April 2026.
ABSTRACT To address the issues of aluminum (Al) powder agglomeration during combustion and low oxidizer decomposition efficiency in composite solid propellants, this study utilized in situ self‐assembly technology to prepare cobalt‐based hybrid‐coated modified Al powder (Al@CZ).
Chong Chen   +11 more
wiley   +1 more source

Pyrolysis‐Engineered Fe/Mn‐ZIF Catalysts: Balancing Activity, Selectivity, and Stability for the Oxygen Reduction Reaction

open access: yesRare Metals, Volume 45, Issue 4, April 2026.
ABSTRACT Metal oxide‐based catalysts for oxygen reduction reaction (ORR) have drawn great attention in recent years. However, it remains technically challenging for the precise regulation of the overall performance due to the trade‐off effect among the activity, selectivity, and stability of electrocatalysts. Herein, a balancing strategy to control the
Haoran Ma   +7 more
wiley   +1 more source

Internal microstructure of arrested charnockite and surrounding gneiss from Kurunegala, Sri Lanka [PDF]

open access: yes, 2016
第3回極域科学シンポジウム/第32回極域地学シンポジウム 11月30日(金) 国立極地研究所 ...
Hiroi Yoshikuni   +9 more
core   +1 more source

Hybrid Flame‐Assisted Plasma‐Enhanced Chemical Vapor Deposition Strategy for Scalable and Structurally Tunable ZrO2 Thin Films

open access: yesRare Metals, Volume 45, Issue 4, April 2026.
ABSTRACT Zirconium dioxide (ZrO2) thin films are critical materials owing to their thermal stability, mechanical durability, and optical transparency enabling applications in photonic, sensing, and electronic devices. However, achieving uniform deposition via plasma‐enhanced chemical vapor deposition (PE‐CVD) has remained challenging due to poor ...
Nour Manafikhi   +4 more
wiley   +1 more source

硫酸钾肥对静止黄河水泥沙絮凝沉降的影响

open access: yesShuitu Baochi Xuebao, 2019
为探索硫酸钾肥对黄河水泥沙在静止状态下沉降的影响,以硫酸钾浓度和泥沙粒径为参数,用移液管法研究了5种硫酸钾浓度和4种粒径范围段(
李学凯   +5 more
doaj  

颗粒荷电对XSP-160型瓷三伞绝缘子积污特性影响数值模拟

open access: yesDianci bileiqi, 2021
为研究颗粒荷电对绝缘子积污特性的影响,利用COMSOL多物理场模拟软件,对XSP-160型瓷三伞绝缘子在颗粒不同荷电方式下的风洞积污特性进行数值模拟,并与其风洞试验结果比较,探究了颗粒按"比例"荷电方式的模拟方法的合理性。进而研究了弱风(0.5~2 m/s)和微风(3~5 m/s)环境下110 kV电压作用下该绝缘子的积污特性,比较了不同粒径下颗粒所受各力的相对大小,分析了风速、粒径、污秽浓度对其自然积污特性的影响。研究结果表明:电场力对大粒径颗粒的沉积起主要作用;弱风时,直流电压作用下 ...
吕玉坤   +4 more
doaj  

Technology development in nano-sized photocatalyst powder preparation technologies [PDF]

open access: yes, 2006
Nano-sized semiconductor powders for use as photocatalysts have great potential in environmental and energy engineering applications. The photocatalytic activity of photocatalyst is significantly affected by preparation process since the crystalline ...
Leung, DYC, Leung, MKH, Ni, M
core  

Direct Observation of Matrix‐to‐Precipitate Elemental Diffusion in Severe Plastic Deformation

open access: yesRare Metals, Volume 45, Issue 4, April 2026.
ABSTRACT Elemental redistribution, particularly the solute exchange between the matrix and precipitates, is a central issue in alloys subjected to severe plastic deformation (SPD). To elucidate this behavior, a nickel–aluminum bronze (NAB) alloy was processed by high‐pressure torsion (HPT), and its microstructural evolution was systematically ...
Xiaobin Yang   +9 more
wiley   +1 more source

Home - About - Disclaimer - Privacy