Results 91 to 100 of about 1,867 (215)

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

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

Magnesium aluminate (MgAl2O4) spinel powders from water-based sols

, 2005
Magnesium aluminate (MgAl2O4) spinel powders of irregular and spherical morphologies were obtained from the bi-component water-based sols following the sol-gel and sol-emulsion-gel methods, respectively.
Naskar, Milan Kanti, Chatterjee, Minati
core  

Ceramic materials based on spinel MgAl2O4 for optical applications

, 2023
This diploma thesis deals with preparation of transparent ceramics based on spinel MgAl2O4 and effect of Cr3+, Tb3+ doping on optical properties. Preparation of samples was optimized using several ways to prepare non-defect ceramic samples with the ...
Rychnovský, Daniel
core  

Structural and optical properties of Eu3+-activated MgAl2O4 for red-emitting phosphor applications

Discover Chemistry
Magnesium aluminate (MgAl2O4) nanophosphor doped with 10 wt% europium (Eu3+) was successfully synthesized via the sol-gel technique. X-ray diffraction analysis confirmed the formation of a single-phase cubic spinel structure, with an average crystallite ...
V. T. Jisha, S. Sneha Jeeval, R. Meenakshi, S. D. Binitha   +3 more
doaj   +1 more source

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

ORDER-DISORDER PHENOMENA IN MGAL2O4 SPINEL

, 1986
The distribution of Al between octahedral and tetrahedral sites in MgAl2O4 spinel has been determined on quenched samples by high-resolution 27Al NMR spectroscopy.
WOOD, B, MONTEZ, B, KIRKPATRICK, R
core  

Pengaruh Lapisan Tipis SiO2 Dan Spinel MgAl2O4 Pada Permukaan Serbuk SiC Terhadap Kekuatan Antarmuka Komposit Al/SiC Dengan Metode Metalurgi Serbuk

, 2021
Telah dilakukan penelitian tentang pengaruh lapisan tipis SiO2 dan spinel MgAl2O4 terhadap kekuatan ikatan antarmuka komposit Al/SiC dengan metode metalurgi serbuk.
Rosyadi, Yusuf Imam
core  

Infiltrated spinel-based ceramic (MgAl2O4) for dental application

, 2017
This work developed a ceramic material for dental application, spinel-base (MgAl2O4), a ceramic material with recognized translucency. Spinel powders were uniaxially pressed at 100 MPa and pre-sintered in order to obtain porous ceramic blocks.
da Silva, Paula Cipriano, Miranda Pereira, Fernanda de Assis Baião, dos Santos, Claudinei, Magnago, Roberto de Oliveira, de Souza, José Vitor Candido [UNESP]   +4 more
core   +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