Results 101 to 110 of about 1,867 (215)

Chemical synthesis and thermal evolution of MgAl2O4 spinel precursor prepared from industrial gibbsite and magnesia powder

, 2002
International audienceA chemical route, using industrial raw materials, was developed for the synthesis of MgAl2O4 spinel precursor. The as-obtained powder was then calcined in air, up to 1200 °C for a period of 1 h. It was found that spinel single phase
Rodrigrez Rosa, M., Bonassin Jean, Carlos, Reveron, Helen, Gutierrez-Campos, Delia   +3 more
core   +1 more source

Disordering of MgAl2O4 spinel from first principles

, 2000
At high temperature, MgAl2O4 spinel is stabilized by disorder of Mg and Al between octahedral and tetrahedral sites. This behaviour has been measured up to 1700 K in recent neutron experiments, but the extrapolation of subsequently fitted thermodynamic ...
Warren, M. C., Dove, M. T., Redfern, S. A T   +2 more
core   +2 more sources

Aqueous slip casting of MgAl2O4 spinel powder

Bulletin of Materials Science, 2011
A stoichiometric MgAl 2 O 4 spinel (MAS) powder was synthesized by calcining a compacted mixture of $\boldsymbol{\alpha} $ -Al 2 O 3
openaire   +2 more sources

Spatially-varying inversion near grain boundaries in MgAl₂O₄ spinel. [PDF]

RSC Adv, 2020
Uberuaga BP, Perriot R.
europepmc   +1 more source

Microwave Absorption Properties of Spinel-Structured Mg–ZnAl2O4

Nanomaterials and Nanotechnology
This study investigates the structural, optical, dielectric, and electromagnetic absorption properties of spinel-structured Mg–ZnAl2O4 synthesized through a sol–gel technique.
Praveen Chenna, Sahil Sharma, Saran Srihari Sripada Panda, Suman Gandi, Saidi Reddy Parne   +4 more
doaj   +1 more source

Correction: Spatially-varying inversion near grain boundaries in MgAl₂O₄ spinel. [PDF]

RSC Adv, 2020
Uberuaga BP, Perriot R.
europepmc   +1 more source

Magnetic properties of titanomagnetites containing spinel (MgAl2O4).

Journal of geomagnetism and geoelectricity, 1981
Magnetic properties of titanomagnetites containing spinel have been studied. Variations of magnetization at room temperature and Curie point have been measured as a function of α, the mole fraction of ulvospinal in titanomagnetite series, and β, the mole fraction of spinel. Magnetization at 20°C and Curie point decrease with increasing α and β.
openaire   +2 more sources

MAGNETITE ACTIVITIES ACROSS THE MGAL2O4-FE3O4 SPINEL JOIN, WITH APPLICATION TO THERMOBAROMETRIC ESTIMATES OF UPPER MANTLE OXYGEN FUGACITY

, 1988
The activity of Fe3O4 component in MgAl2O4-Fe3O4 spinels has been measured at 900° and 1000° C and 1 atm total pressure using a zirconia oxygen electrolyte.
MATTIOLI, G, WOOD, B
core   +1 more source

Condensation sequence of circumstellar cluster seeds (CSCCS)

Frontiers in Astronomy and Space Sciences
IntroductionTraditionally, the condensation sequence of circumstellar dust is predicted based on the thermodynamic stabilities of specific condensates in the macroscopic bulk phase.
David Gobrecht
doaj   +1 more source

Karakterisasi bentuk partikel SiC yang dilapisi spinel (MgAl2O4) dengan menggunakan metode electroless platting [PDF]

, 2015
Telah dilakukan penelitian tentang karakterisasi bentuk partikel SiC yang dilapisi spinel (MgAl2O4) dengan menggunakan metode electroless platting.
Fajrittamam, Ridlo
core