Results 61 to 70 of about 38,396 (204)

Evolution of an alumina-magnesia/self-forming spinel castable. Part I: Microstructural features Evolução de um refratário de espinélio auto-formado de alumina-magnésia. Parte I: Aspectos microestruturais

Cerâmica, 1999
Refractories containing magnesium aluminate spinel (MgAl2O4) are materials for emerging technology in several applications like cement and steelmaking processes.
D. Gutiérrez-Campos, J. I. Diaz, R. M. Rodriguez   +2 more
doaj   +1 more source

Photothermal CO2 Hydrogenation: Reactions, Mechanisms, and Catalyst Design

Carbon Energy, Volume 8, Issue 8, August 2026.
Reactions, mechanisms, and catalyst design for photothermal CO2 hydrogenation. ABSTRACT Photothermal CO2 hydrogenation has attracted extensive attention because it provides a green and sustainable approach to fuel and chemicals production. The photothermal catalyst plays a critical role in CO2 conversion through a range of reactions.
Shuai Yan, Yuting Wang, Wenhao Zhao, Jinqiang Zhang, Guangyao Chen, Lei Jiang, Yun Wang, Yingquan Chen, Xiong Zhang, Xianhua Wang, Kuo Zeng, Hongqi Sun, Shuxin Ouyang, Yonggang Yao, Haiping Yang, Hanping Chen   +15 more
wiley   +1 more source

A STUDY ON THE SYNTHESIS OF MgAl2O4 SPINEL BY STARCH ASSISTED SOL-GEL PROCESS [PDF]

, 2015
In this paper, the synthesis of ceramic spinel MgAl2O4 by starch assisted sol - gel process is presented. The gel mixture was prepared by using Mg(NO3)2.6H2O, Al(NO3)3.9H2O as precursors and starch as a gel agent. The study focused on relevant components
Ngoc, Tran Minh, Tin, Dang Xuan, Hai, Ho Van Minh, Tuyen, Tran Ngoc, Quyen, Nguyen Duc Vu   +4 more
core   +1 more source

Large magnetocapacitance beyond 420% in epitaxial magnetic tunnel junctions with an MgAl2O4 barrier

Scientific Reports, 2022
Magnetocapacitance (MC) effect has been observed in systems where both symmetries of time-reversal and space-inversion are broken, for examples, in multiferroic materials and spintronic devices.
Kenta Sato, Hiroaki Sukegawa, Kentaro Ogata, Gang Xiao, Hideo Kaiju   +4 more
doaj   +1 more source

The Structure of Spinels: A Quantitative Assessment of the AB2X4 Family

Journal of the American Ceramic Society, Volume 109, Issue 8, August 2026.
ABSTRACT Compounds with the general formula AB2X4 crystallize with the atomic structure of the mineral spinel, MgAl2O4, described by three degrees of freedom: lattice parameter a, anion parameter u, and cation inversion parameter λ. Here, bond valence sum validation of 1244 ambient structures (338 compositions, 1915–2025) from the Inorganic Crystal ...
Nik Reeves‐McLaren
wiley   +1 more source

Critical Evaluation and Thermodynamic Modeling of the RE2O3–MgO Systems (RE = All Lanthanides + Sc, Y)

Journal of the American Ceramic Society, Volume 109, Issue 8, August 2026.
ABSTRACT The RE2O3–MgO binary systems provide fundamental phase‐equilibria information for high‐temperature oxide ceramics, including MgO‐based refractories modified with rare‐earth oxides and RE2O3‐based advanced ceramic materials used in semiconductor‐processing and aerospace applications. In this study, thermodynamic modeling of the RE2O3–MgO binary
Jeong‐Min Cheon, Kerui Lai, In‐Ho Jung   +2 more
wiley   +1 more source

A Dislocation Perspective on Strength and Toughness in Ceramics

Advanced Engineering Materials, Volume 28, Issue 14, 22 July 2026.
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

Processing strong MgAl2O4 ceramics via zirconia transformation toughening

Journal of Materiomics
The applications of magnesium aluminate spinel (MgAl2O4) ceramics often require optical transparency, suggesting minimal macroscopic flaws otherwise too strong light scattering would make them opaque.
Shichang Cheng, Hongbing Yang, Yao Han, Chang-An Wang, Yanhao Dong   +4 more
doaj   +1 more source

Structure‐Sensitive Steam Reforming of Methane Over Exsolved NiAl‐Layered Double Hydroxides

ChemCatChem, Volume 18, Issue 13, 14 July 2026.
Exsolution of Ni nanoparticles from NiAl‐layered double hydroxides (LDH) provides a route to systematically control nanoparticle size in Ni/Al2O3 catalysts over the range of 4–18 nm. Methane steam reforming shows strong structure sensitivity, being favored over smaller (<10 nm) particles with 80 % methane conversion and a high specific hydrogen ...
Deshetti Jampaiah, Venkata D. B. C. Dasireddy, Suresh K. Bhargava, Karen Wilson, Adam F. Lee   +4 more
wiley   +1 more source

Materials and Architectures for Laminated‐Glass Transparent Armor Systems: A Review

International Journal of Ceramic Engineering &Science, Volume 8, Issue 4, July 2026.
This review advances a materials‐engineering framework for laminated transparent armor that integrates glass, transparent ceramics, and polymer interlayers within impedance‐engineered architectures. It correlates constituent properties, stacking sequence, and interfacial mechanics with stress‐wave attenuation, fragmentation control, and postimpact ...
Samuel Thimounier Ferreira, Samuel Marcio Toffoli   +1 more
wiley   +1 more source