Results 1 to 10 of about 10,946 (217)

Characterization of MgAl2O4 sintered ceramics [PDF]

Science of Sintering, 2019
Single phase MgAl2O4 was made from a one-to-one molar ratio of MgO and Al2O3 powders mixed using ball-milling. Mixtures of MgO and Al2O3 were subsequently treated in planetary ball mill for 30, 60, 90 and 120 minutes in air.
Obradović Nina, Fahrenholtz William G., Filipović Suzana, Corlett Cole, Đorđević Pavle, Rogan Jelena, Vulić Predrag J., Buljak Vladimir, Pavlović Vladimir   +8 more
doaj   +10 more sources

Facile one-pot synthesis of CuO–Bi2O3/MgAl2O4 catalyst and its performance in the ethynylation of formaldehyde [PDF]

Heliyon
The CuO–Bi2O3/MgAl2O4 catalyst was synthesized via one-pot synthesis and used to catalyze formaldehyde (HCHO) ethynylation. Coprecipitation using Cu2+, Bi3+, Mg2+, and Al3+ nitrates and NaOH generated Cu and Bi oxides and spinel MgAl2O4 phase.
Gang Guan, Fengyun Ma, Ping Luo, Xiaolin Zhang, Xiaoding Li, Guangxing Li   +5 more
doaj   +2 more sources

Insitu synthesis of Al– MgAl2O4 composites and parametric optimization of tribological characteristics [PDF]

Heliyon
In this research, multiobjective optimization of tribological characteristics of Al–4Mg/in-situ MgAl2O4 composites fabricated via ultrasonic cavitation treatment assisted stir casting technique was carried out. Al–4Mg alloy dispersed with 0.5, 1 and 2 wt%
Satish Kumar Thandalam, Titus Thankachan, Emad Makki, Jayant Giri, Sathish Thanikodi   +4 more
doaj   +2 more sources

Synthesis and fabrication of MgAl2O4 ceramic foam via a simple, low-cost and eco-friendly method

Journal of Asian Ceramic Societies, 2016
The MgAl2O4 nanocrystalline powder was synthesized using naturally available egg white and inexpensive metal nitrate salts. During this process, the freshly extracted egg white was mixed with metal nitrate salt and subsequently heated at 350 °C in a pit ...
Shuvendu Tripathy, Deepash S Saini
exaly   +3 more sources

Síntese do espinélio MgAl2O4 via "sol-gel" Synthesis of MgAl2O4 spinel via "sol-gel"

Cerâmica, 2005
O espinélio aluminato de magnésio MgAl2O4 é um material que apresenta uma combinação de propriedades de grande interesse tecnológico, tais como alto ponto de fusão (2135 ºC), alta resistência ao ataque químico e ao choque térmico, baixa constante ...
A. L. Heck, S. R. Taffarel, R. Hoffmann, U. L. Portugal Jr., S. L. Jahn, E. L. Foletto   +5 more
doaj   +2 more sources

Sol-gel synthesis of magnesium aluminate and synergistic degradation of Cr(VI) ion by adsorption and photocatalysis

Frontiers in Materials, 2023
Introduction: Magnesium aluminate (MgAl2O4) is a new adsorbent, which can be used to adsorb dyes and drugs, but it has not been used to adsorb Cr(VI) ions.Methods: A conventional polyacrylamide gel route with the different chelating agents including ...
Miao Liu, Yi Wang, Yingjun Wu, Chunyang Liu, Xin Liu   +4 more
doaj   +1 more source

Morphological and structural characterization of MgAl2O4 spinel [PDF]

Science of Sintering, 2023
Magnesium aluminate has the spinel structure along with good mechanical, chemical, and thermal properties. Magnesium aluminate has a wide range of applications including refractory ceramics, optically transparent ceramic windows, and armors.
Nina Obradovic, Suzana Filipovic, William Fahrenholtz, Bojan Marinkovic, Jelena Rogan, Steva Levic, Antonije Djordjevic, Vladimir Pavlovic   +7 more
openaire   +5 more sources

Grain refinement of Mg-Al alloys inoculated by MgAl2O4 powder

Journal of Magnesium and Alloys, 2021
As a potent nucleating substrate for α-Mg grain, MgAl2O4 powder was used to inoculate the Mg-Al melt in this study. The effects of MgAl2O4 amount, holding time and Al content on the grain size and grain refining ratio of the inoculated Mg-Al alloys are ...
Hengbin Liao, Meiyan Zhan, Chengbo Li, Zhiqiang Ma, Jun Du   +4 more
doaj   +1 more source

Effect of sulfur content on precipitation behaviour of MnS-containing inclusions in X70 pipeline steel

Journal of Materials Research and Technology, 2023
The presence of oxide-MnS complex inclusions is beneficial for the improvement of hydrogen resistance in pipeline steel. The effect of S and Mg contents on the generation mechanism of MnS, MgAl2O4, and MgO inclusions, and the heterogeneous nucleation ...
Hua Zhang, Xufeng Xiao, Yong Wang, Chengsong Liu, Hongwei Ni   +4 more
doaj   +1 more source

Appearance of reinforcement, interfacial product, heterogeneous nucleant and grain refiner of MgAl2O4 in aluminium metal matrix composites

Journal of Materials Research and Technology, 2023
The role of MgAl2O4 particles in Al matrix composites has been very crucial. They have evolved from acting as a product at the matrix-reinforcement interface of some ex-situ aluminium matrix composites (AMCs) to a separate reinforcement in the in-situ ...
Ashish Thakur, Din Bandhu, D.R. Peshwe, Y.Y. Mahajan, Kuldeep K. Saxena, Sayed M. Eldin   +5 more
doaj   +1 more source