Results 41 to 50 of about 3,718 (215)

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

Identification of Humidity Sensing Mechanism in MgAl2O4 by Impedance Spectroscopy as Function of Relative Humidity [PDF]

Materials Research, 2018
MgAl2O4 is a humidity sensing material, which high melting point requires high sintering temperatures. In this work, manganese oxide was used as a sintering aid to obtain MgAl2O4 samples sintered at 1350°C with a microstructure suitable for humidity ...
Guilherme Baltar Crochemore, Amadeu Rodrigues Pereira Ito, Celso Antonio Goulart, Dulcina Pinatti Ferreira de Souza   +3 more
doaj   +2 more sources

Preparação e caracterização de catalisadores de Ni suportado em espinélio MgAl2O4 utilizados na reação de decomposição do metano para obtenção de hidrogênio e nanotubos de carbono [PDF]

, 2011
Tese (doutorado) - Universidade Federal de Santa Catarina, Centro de Ciências Físicas e Matemáticas, Programa de Pós-Graduação em Química, Florianópolis, 2011Este trabalho descreve a síntese e caracterização de catalisadores compostos por uma fase ativa ...
Nuernberg, Giselle de Boit
core  

Synthesis, characterization and ionic conductivity of MgAl2O4 [PDF]

, 2015
Magnesium aluminate nanoparticles have been synthesized by a citrate sol-gel route. X-ray diffraction and IR spectroscopy study confirmed the formation of MgAl2O4 cubic spinel structure without presence of any secondary phase.
Nahdi, Kais, Elmhamdi, Abdelhakim
core   +1 more source

A Comprehensive Assessment and Benchmark Study of Large Atomistic Foundation Models for Phonons

Advanced Intelligent Discovery, EarlyView.
We benchmark six large atomistic foundation models on 2429 crystalline materials for phonon transport properties. The rapid development of universal machine learning potentials (uMLPs) has enabled efficient, accurate predictions of diverse material properties across broad chemical spaces.
Md Zaibul Anam, Ogheneyoma Aghoghovbia, Mohammed Al‐Fahdi, Lingyu Kong, Victor Fung, Ming Hu   +5 more
wiley   +1 more source

CO2 utilization as a soft oxidant for the synthesis of styrene from ethylbenzene over Co3O4 supported on magnesium aluminate spinel: role of spinel activation temperature

Scientific Reports, 2020
Magnesium aluminate spinel (MgAl2O4) supported Co3O4 catalysts are synthesized and tested for the oxidative dehydrogenation (ODH) of ethylbenzene using CO2 as a soft oxidant.
Venkata Rao Madduluri, Ravi Kumar Marella, Marlia M. Hanafiah, Sivarama Krishna Lakkaboyana, G. Suresh babu   +4 more
doaj   +1 more source

Advancements in CO2 Capture Technologies: A Review of Amine Absorption and Alternative Methods for Post‐Combustion Integration

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT Carbon capture technologies are poised to become one of the primary focuses regarding the achievement of net‐zero emissions by the year 2050. In these technologies, particular attention is given to post‐combustion CO2 capture, which is more easily implemented at existing power stations and other industries.
Satyajit Mukherjee, Ashish Kumar, Mayurkumar P. Patil, Rohit B. Meshram   +3 more
wiley   +1 more source

Micro-arc oxidation (MAO) synthesized MgAl2O4 spinel-integrated coatings on Mg alloys: multidimensional exploration of biodegradation, biocompatibility, and osseointegration

Journal of Materials Research and Technology
The application of micro-arc oxidation (MAO) synthesized magnesium aluminate (MgAl2O4) spinel-integrated coatings on Mg alloys has great potential for orthopedic implantats, because such a coating improves biodegradation resistance, which is an important
Jun Feng, Shaohua Yuan, Zhiyong Shi, Xin Li, Yingchao Zhao, Andrej Atrens, Ming-Chun Zhao   +6 more
doaj   +1 more source

Dilatometric characteristics of weakly sintered ceramics

Chimica Techno Acta, 2022
Thermal expansion of refractory ceramics CaZrO3, MgAl2O4, La2Zr2O7 and YSZ-12 was studied. The samples of the complex oxides were synthesized by solution combustion synthesis with glycine; the fuel:oxidant ratio was varied depending on the character of ...
Yury I. Komolikov, Larisa V. Ermakova, Vladimir R. Khrustov, Victor D. Zhuravlev   +3 more
doaj   +1 more source

Interfacial Engineering of Cu/ZnX2O4 (X = Ga, Cr, Al) Spinel‐Supported Catalysts for Enhanced CO2 Hydrogenation to Methanol

Carbon and Hydrogen, EarlyView.
Engineered Cu‐ZnGa interfaces on spinel supports enhance metal–support interaction and Cu dispersion, suppress reverse water‐gas shift, and achieve high CO2 conversion, methanol selectivity, and operational stability. ABSTRACT Catalytic hydrogenation of carbon dioxide to methanol is a key approach for carbon resource utilization and carbon neutrality ...
Zhaohui Liu, Zhiqiang Yan, Ying Yang, Yuhao Tian, Yanchun Li, Peixiang Shi, Congming Li   +6 more
wiley   +1 more source