Results 91 to 100 of about 136,476 (299)

Estudo da moldagem de pós de alumina por injeção com ênfase na formulação e remoção de ligante [PDF]

, 2003
Tese (doutorado) - Universidade Federal de Santa Catarina, Centro Tecnológico. Programa de Pós-Graduação em Ciência e Engenharia de Materiais.Este trabalho apresenta uma abordagem global do processo de moldagem de pós por injeção, com ênfase na ...
Harima, Eiji
core  

A new process of extracting alumina from high-alumina coal fly ash in NH4HSO4 + H2SO4 mixed solution [PDF]

, 2016
Alumina was leached from high-alumina coal fly ash with a NH4HSO4 + H2SO4 mixed solution. The leaching behavior was systematically investigated, as were factors such as mixed solution composition and concentration, reaction time and temperature, and ...
Wang, Chenye, Xu, Dehua, Bao, Weijun, Li, Huiquan   +3 more
core   +1 more source

High Light Utilization and Color Rendering in Vacuum‐Deposited Semitransparent Perovskite Solar Cells

Advanced Materials, EarlyView.
In this work, low bandgap (≈1.55 eV) semitransparent perovskite solar cells (ST‐PSCs) having thin (thickness < ≈100 nm) perovskite layers and transparent conductive oxide‐based rear electrodes are fabricated using vacuum‐deposition methods. Two different ST‐PSCs demonstrated a high light utilization efficiency value of 4.2 (PCE: 9.26% and AVT: 45.3 ...
Abhyuday Paliwal, Manuel Romero, Lennart van den Hengel, Nathan Rodkey, Kassio P. S. Zanoni, Gabriel Lozano, Cristina Roldán‐Carmona, Michele Sessolo, Hernán Míguez, Henk J. Bolink   +9 more
wiley   +1 more source

Multinuclear MAS NMR Identification of Fluorine Species on the Surface of Fluorinated γ-Alumina [PDF]

, 2016
The fluorination on the γ-alumina surface was studied by multinuclear MAS NMR and BET measurements. The fluorine species on the fluorinated γ-alumina can be identified by 19F MAS NMR combined with 1H MAS NMR and 27Al MAS and CP/MAS NMR.
Mingyong Sun (3050814), Weiping Zhang (311523), Roel Prins (2479579)   +2 more
core   +1 more source

3D Anodic Alumina Nanoarchitectures: A Decade of Progress from Foundational Science to Functional Metamaterials

Advanced Materials, EarlyView.
Ordered three‐dimensional anodic aluminum oxide (3D‐AAO) nanoarchitectures with longitudinal and transverse pores enable architecture‐driven metamaterials. The review maps fabrication advances, including hybrid pulse anodization, and shows how 3D‐AAO templates tailor properties across magnetism, energy, catalysis, and sensing.
Marisol Martín‐González
wiley   +1 more source

Study of extracting alumina from high-alumina PC fly ash by a hydro-chemical process [PDF]

, 2016
Alumina extraction from high-alumina pulverized coal (PC) fly ash by a mild hydro-chemical process characterized by a high alkaline sodium aluminate solution was studied. A high alumina extraction efficiency of 96.03% has been achieved.
Shen, Shirley, Liu, Zhongkai, Xie, Zongli, Zhang, Yi, Zheng, Shili, Ding, Jian, Ma, Shuhua   +6 more
core   +1 more source

Preparation and crystallization kinetics of silica-based ceramic cores modified by alumina

Cailiao gongcheng
Alumina is a common mineralizer in silica-based ceramic cores, but its promotion or inhibition effects on the crystallization of fused-silica are in contrary conclusions.
FAN Hongna, XU Xiqing, LI Xin, QI Changjian, LI Minmin, HAN Weiwei   +5 more
doaj   +1 more source

Gapless Superconductivity From Extremely Dilute Magnetic Disorder in 2H‐NbSe2‐xSx

Advanced Materials, EarlyView.
We demonstrate that 2H‐NbSe2‐xSx hosts gapless superconductivity at unexpectedly low magnetic impurity concentrations. Combining STM, Bogoliubovde Gennes simulations, DFT, and quasiparticle interference, we comprehensively study the development of gapless behavior and show that SeS substitution reshapes the band structure, enhances nesting, and drives ...
Jose Antonio Moreno, Mercè Roig, Víctor Barrena, Edwin Herrera, Alberto M. Ruiz, Samuel Mañas‐Valero, Antón Fente, Anita Smeets, Jazmín Aragón, Yanina Fasano, Beilun Wu, Maria N. Gastiasoro, Eugenio Coronado, José J. Baldoví, Brian M. Andersen, Isabel Guillamón, Hermann Suderow   +16 more
wiley   +1 more source

Extrusion pressure generated in high alumina content paste extrusion [PDF]

, 2010
Four different alumina pastes with various solvent volume fractions were processed by extrusion free forming and the pressures generated in the extrusion process were recorded and analyzed.
Evans, J.R.G., S. Yang, J.R.G. Evans, Yang, shoufeng, Evans, J.RG., X.P. Chi, Yang, S., Chi, X.P.   +7 more
core   +1 more source

Self‐Assembled Monolayers in p–i–n Perovskite Solar Cells: Molecular Design, Interfacial Engineering, and Machine Learning–Accelerated Material Discovery

Advanced Materials, EarlyView.
This review highlights the role of self‐assembled monolayers (SAMs) in perovskite solar cells, covering molecular engineering, multifunctional interface regulation, machine learning (ML) accelerated discovery, advanced device architectures, and pathways toward scalable fabrication and commercialization for high‐efficiency and stable single‐junction and
Asmat Ullah, Ying Luo, Stefaan De Wolf
wiley   +1 more source