Results 91 to 100 of about 10,946 (217)

Liquidus of MgO and MgAl2O4 in the CaO‐MgO‐Al2O3 System at 1550 and 1600°C

Journal of the American Ceramic Society, Volume 109, Issue 5, May 2026.
ABSTRACT In this study, the liquidus of MgO and MgAl2O4 spinel phase in the CaO‐MgO‐Al2O3 system at 1550 and 1600°C were experimentally investigated using a classical quenching method. In order to examine the liquidus composition accurately, the equilibration was carried out using four different ways using the combinations of Pt and ceramic (MgO and ...
Dahee Gwak, Jaesung Lee, In‐Ho Jung
wiley   +1 more source

Production, stability and properties of ultrafine MgAl2O4 (spinel) particles stabilized Mg–3Ca alloy foams

Journal of Materials Research and Technology
The present work reports the synthesis and mechanical behavior studies of Mg–3Ca alloy foams stabilized by ultrafine MgAl2O4 (spinel) particles. The MgAl2O4 particles was created in-situ in the Mg–3Ca alloy melt through the reaction of Mg, Al and O ...
Dipak Bhosale, K. Georgy, Manas Mukherjee, G.S. Vinod Kumar   +3 more
doaj   +1 more source

Alkali Vapor Corrosion of Spinel (MgAl2O4) and Gahnite (ZnAl2O4) Refractories—A Comparative Study

Journal of the American Ceramic Society, Volume 109, Issue 5, May 2026.
ABSTRACT Alkali vapor corrosion is critical for refractories used in the kilns and furnaces of diverse high‐temperature processing and manufacturing sectors such as gasifiers, cement production, and glass making. Gahnite (ZnAl2O4) is being investigated as a potential chrome‐free refractory because of its similarity with the structure and properties of ...
Rajat Durgesh Ramteke, James G. Hemrick, Manoj K. Mahapatra   +2 more
wiley   +1 more source

Improvement of microstructure and mechanical property of Al–2Fe alloy though an in-situ reaction of Fe2O3 powder in Al–Mg melts

Journal of Materials Research and Technology
Al–Fe based alloys exhibit excellent high heat-resistance property but suffer from low strength and hardness because the soft aluminum matrix is interrupted by coarse needle/flake-like Al3Fe phases.
Hao Lian, Z.M. Shi, Wenlong Yu, Y. Wang, Wenbin Wang, Na Pang   +5 more
doaj   +1 more source

Theoretical study on magnetic tunneling junctions with semiconductor barriers CuInSe$_2$ and CuGaSe$_2$ including a detailed analysis of band-resolved transmittances

, 2018
We study spin-dependent transport properties in magnetic tunneling junctions (MTJs) with semiconductor barriers, Fe/CuInSe$_2$/Fe(001) and Fe/CuGaSe$_2$/Fe(001).
Masuda, Keisuke, Miura, Yoshio
core   +1 more source

Nickel Nanoparticles Prepared via Colloidal Synthesis as CO2 Hydrogenation Catalysts on Various Support Materials

Advanced Synthesis &Catalysis, Volume 368, Issue 8, 15 April 2026.
Small aromatic ligands are used to synthesize Ni particles between 1 and 4.4 nm. After deposition on various supports, an alkylating agent and subsequent reduction procedure are used to remove the ligands. On SiO2, the Ni particles remained small, but on Al2O3 they sintered severely.
Bram T. Kappé, Metin Sen, Esther Groeneveld, Savannah Turner, Ward van der Stam, Matteo Monai, Bert M. Weckhuysen   +6 more
wiley   +1 more source

Superconductivity in spinel oxide LiTi2O4 epitaxial thin films

, 2007
LiTi2O4 is a unique material in that it is the only known oxide spinel superconductor. Although bulk studies have demonstrated that superconductivity can be generally described by the Bardeen-Cooper-Schreiffer theory, the microscopic mechanisms of ...
Arenholz, E., Chopdekar, R.V., Suzuki, Y., Takamura, Y., Wong, F.   +4 more
core   +1 more source

Optical constants of refractory oxides at high temperatures

, 2013
Many cosmic dust species, among them refractory oxides, form at temperatures higher than 300 K. Nevertheless, most astrophysical studies are based on the room-temperature optical constants of solids, such as corundum and spinel. A more realistic approach
Mutschke, Harald, Posch, Thomas, Zeidler, Simon   +2 more
core   +1 more source

Effect of Rare Earth on Inclusions and Fatigue Properties of 20CrMnTi Gear Steel [PDF]

Teshugang
To deeply investigate the effect of rare earth （La/Ce） on inclusions and fatigue properties of 20CrMnTi gear steel， the inclusions in 20CrMnTi and 20CrMnTi-RE gear steel treated with 0.002 7% rare earth were analyzed and characterized by various ...
Wang　Li, Liu　Chengbao, Li　Haoqiu, Wang　Yi, Sun　Zonghui, Liu　Chunwei, Yang　Chaoyun, Fu　Zhihao
doaj   +1 more source

Evolution of magnetic properties in the vicinity of the Verwey transition in Fe3O4 thin films

, 2017
We have systematically studied the evolution of magnetic properties, especially the coercivity and the remanence ratio in the vicinity of the Verwey transition temperature (TV ), of high-quality epitaxial Fe3O4 thin films grown on MgO (001), MgAl2O4 (MAO)
Liu, W., Liu, X. H., Zhang, Z. D.
core   +1 more source