Results 101 to 110 of about 5,849 (219)

Effects of Mg2+ concentration on the structure and optical properties of MgxAl2O3+x:0.88% Cd2+ (0.25 ≤ x ≤ 4.5) nano-powders synthesized via citrate sol-gel

Results in Physics, 2017
Un-doped (Mg1.5Al2O4.5) and 0.88% Cd2+ doped MgxAl2O3+x nano-powders were synthesized via citrate sol-gel method. The Mgx concentration was varied in the range of 0.25 ≤ x ≤ 4.5.
V.M. Maphiri, F.B. Dejene, S.V. Motloung
doaj   +1 more source

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

A temporal study of oxygen-rich pulsating variable AGB star, T Cep: Investigation on dust formation and dust properties

, 2011
Pulsation is believed to be the leading cause of dusty mass loss from Asymptotic Giant Branch (AGB) stars. We present a temporal study of T Cep, a long-period Mira variable, using seven ISO SWS spectra, covering a 16-month period over a single pulsation ...
Angela K. Speck, Begemann, Begemann, Benitez, Blommaert, Bohren, Bohren, Bose, Cami, Cami, Cami, Castelaz, Chiar, Corman, Crovisier, de Graauw, DePew, Dijkstra, Gail, Gervais, Hao, Henning, Huffman, Isles, Jäger, Jäger, Kessler, Koike, Lebzelter, Lodders, Marsakova, McDonald, McDonald, Molster, Murata, Nogami, Onaka, Perrin, Perryman, Schweitzer, Sloan, Sloan, Sloan, Spoon, Stroud, Suklima Guha Niyogi, Takashi Onaka, Takigawa, Thompson, Tielens, Tsuji, Van Malderen, Vollmer, Waelkens, Waters, Weigelt, Werner, Woolf, Yamamura, Zijlstra   +59 more
core   +1 more source

Microstructural and Optical Properties of MgAl₂O₄ Spinel: Effects of Mechanical Activation, Y₂O₃ and Graphene Additions. [PDF]

Materials (Basel), 2021
Obradovic N, Fahrenholtz WG, Corlett C, Filipovic S, Nikolic M, Marinkovic BA, Failla S, Sciti D, Di Rosa D, Sani E.   +9 more
europepmc   +1 more source

Large perpendicular magnetic anisotropy in epitaxial Fe/MgAl2O4(001) heterostructures

, 2018
We investigated perpendicular magnetic anisotropy (PMA) and related properties of epitaxial Fe (0.7 nm)/MgAl2O4(001) heterostructures prepared by electron-beam evaporation.
Mandal, Ruma, Mitani, Seiji, Sukegawa, Hiroaki, Takahashi, Yukiko K., Xiang, Qingyi   +4 more
core   +1 more source

Stability and complete regeneration of a Ni/MgAl2O4 catalyst in combined steam/dry reforming of raw bio-oil

Journal of CO2 Utilization
The combined steam and dry reforming (CSDR) of bio-oil (the liquid product from biomass pyrolysis) represents an attractive pathway for CO2 valorization along with sustainable syngas production.
Aingeru Remiro, Leire Landa, José Valecillos, Sergio Iglesias-Vázquez, Javier Bilbao, Ana G. Gayubo   +5 more
doaj   +1 more source

Viscosity of yttrium oxide (Y2O3) and magnesium-aluminum spinel (MgAl2O4) nanopowder suspensions in ethyl alcohol

Archives of Mechanics, 2013
We report results of rheological experiments on suspensions of nanopowders. In this work we have used two ceramic nanopowders such as magnesium-aluminum spinel (S30CR Baikowski – MgAl2O4) and yttrium oxide (Y2O3) suspended in ethyl alcohol.
M. Cholewa, G. Żyła, A. Witek, J.P. Plog, V. Lehmann, T. Oerther, D. Gross   +6 more
doaj   +1 more source

Thermodynamics of Mg-Al Order-Disorder Reaction in MgAl₂O₄-Spinel: Constrained by Prolonged Annealing Experiments at 773-1123 K. [PDF]

Molecules, 2021
Ma Y, Bao X, Liu X.
europepmc   +1 more source

Using positron annihilation spectroscopy for the control of humidity-sensitive processes in nanoporous MgAl2O4 ceramics

Технологія та конструювання в електронній апаратурі, 2006
Nanoporous spinel‑type MgAl2O4 ceramics sintered at 1100 and 1400 °C, considered as promising materials for humidity sensors, were investigated using positron annihilation lifetime spectroscopy (PALS). It is demonstrated that PALS can be applied to study
H. I. Klym, A. Ingram, I. V. Hadzaman, O. I. Shpotyuk, M. M. Vakiv, O. I. Shpotyuk   +5 more
doaj  

ORDER-DISORDER PHENOMENA IN MGAL2O4 SPINEL

, 2016
The distribution of Al between octahedral and tetrahedral sites in MgAl2O4 spinel has been determined on quenched samples by high-resolution 27Al NMR spectroscopy. The relationships between T and degree of inversion, and between disorder and cell volume are analysed.-J.A.Z.
Wood, B, Kirkpatrick, R, Montez, B
openaire   +1 more source