Results 31 to 40 of about 32,911 (288)

X-ray Diffraction Analysis of Cu2+ Doped Zn1-xCuxFe2O4 Spinel Nanoparticles using Williamson-Hall Plot Method

, 2019
The nanoparticles (NPs) of Zn1-xCuxFe2O4 (ZCFO) spinels with x = 0, 0.2, 0.4, 0.6 and 0.8 were synthesized by a sol-gel combustion method using acetate precursor. The NPs of ZCFO were prepared by following calcination process at 600C for 8hrs.
Kumar, Abhishek, Kumar, Dinesh, Prakash, Rajiv, Singh, Akhilesh Kumar   +3 more
core   +1 more source

Mechanism of reduced sintering temperature of Al2O3–ZrO2 nanocomposites obtained by microwave hydrothermal synthesis [PDF]

, 2018
A novel method to obtain Al2O3–ZrO2 nanocomposites is presented. It consists of the co-precipitation step of boehmite (AlO(OH)) and ZrO2, followed by microwave hydrothermal treatment at 270 °C and 60 MPa, and by calcination at 600 °C.
Ganin, Alexey, Kimmel, Giora, Koltsov, Iwona, Małysa, Maria, McGlynn, Jessica, Prześniak-Welenc, Marta, Smalc-Koziorowska, Julita, Stelmakh, Swietlana   +7 more
core   +1 more source

Anatase/rutile mass fraction determination in TiO2 nanoparticles using Rietveld refinement aiming applications in water purification

Labor & Engenho, 2013
Given the growing demand for sanitation solutions, various techniques of wastewater treatment have been proposed. Among them, we highlight the use of photocatalysts.
Egont Alexandre Schenkel, Eric Fujiwara, Murilo Ferreira Marques dos Santos, Eduardo Ono, Carlos Kenichi Suzuki   +4 more
doaj   +1 more source

Investigation of the Heterovalent Substitution Cadmium for Lanthanum in Molybdate La2MoO6

Journal of Chemistry, 2021
This paper presents the investigation of the heterovalent substitution of cadmium for lanthanum in the La2-xCdxMoO6-x/2 system. The samples were synthesized by the solid state reaction method at 1000°C.
K. A. Chebyshev, A. V. Ignatov, L. V. Pasechnik, N. I. Selikova, E. I. Get`man   +4 more
doaj   +1 more source

Phase relations in K_xFe_{2-y}Se_2 and the structure of superconducting K_xFe_2Se_2 via high-resolution synchrotron diffraction

, 2012
Superconductivity in iron selenides has experienced a rapid growth, but not without major inconsistencies in the reported properties. For alkali-intercalated iron selenides, even the structure of the superconducting phase is a subject of debate, in part ...
A. Larson, Anna Llobet, Daniel P. Shoemaker, Duck Young Chung, Helmut Claus, J.-F. Bérar, Melanie C. Francisco, Mercouri G. Kanatzidis, Sevda Avci   +8 more
core   +1 more source

Data for new protocol to detect the monoclinic phase of La2Mo2O9 and related oxide ion conductors

Data in Brief, 2018
In this data article we have presented the Rietveld refinement results of the X-ray diffraction data of both bulk and nanocrystalline La2Mo2O9 and bulk La2MoWO9 oxide ion conductors at different temperatures.
Tanmoy Paul, Yoed Tsur
doaj   +1 more source

Synthesis, structural characterization and functional properties of Sr0.5Ba0.5Nb2−xFexO6 ceramic powders

Dyna, 2021
Sr0.5Ba0.5Nb2-xFexO6 (SBNF) ceramic powders for x=0.00, x=0.02 and x=0.03 were synthesized using coprecipitation method. The structure of the SBNF single phase with x=0.02 was identified by X-ray diffraction and Rietveld refinement; the morphology and ...
Juliana Paola Enriquez Fuertes, William Arbey Molano Gabalán, Alejandra Isabel Guerrero Duymovic, Alfonso Enrique Ramírez Sanabria, Sonia Gaona Jurado, Claudia Fernanda Villaquirán Raigoza   +5 more
doaj   +1 more source

Evidence for existence of Functional Monoclinic Phase in Sodium Niobate based Solid Solution by Powder Neutron Diffraction

, 2018
We have carried out systematic temperature-dependent neutron diffraction measurements in conjunction with dielectric spectroscopy from 6 to 300 K for sodium niobate based compounds (1-x) NaNbO3 -xBaTiO3 (NNBTx).
Chaplot, S. L., Jauhari, Mrinal, Krishna, P. S. R., Mishra, S. K., Mittal, R., Reddy, V. R.   +5 more
core   +1 more source

Pyramidal Structures on Yttria‐Stabilized Zirconia after High Temperature Exposure at 1500°C: New Features on an Old Material

Advanced Engineering Materials, EarlyView.
New features on yttria‐stabilized zirconia after exposure at 1500°C: Newly discovered pyramidal structures on an old material. After exposure at 1550°C on the cross section of YSZ new features, namely pyramidal structures are discovered. These structures grow with time, increase in numbers, appear as singularities, are often arranged in strings, and ...
Doris Sebold, Dylan Jennings, Robert Vaßen   +2 more
wiley   +1 more source

Structure determination from powder data : Mogul and CASTEP [PDF]

, 2009
When solving the crystal structure of complex molecules from powder data, accurately locating the global minimum can be challenging, particularly where the number of internal degrees of freedom is large.
Bardin, J., Florence, A. J., Griffin, T. A. N., Johnston, B., Shankland, K., Shankland, N.   +5 more
core   +1 more source