Results 11 to 20 of about 147,619 (289)

Alkaline-Activation Technique to Produce Low-Temperature Sintering Activated-HAp Ceramic

Applied Sciences, 2023
The fabrication of hydroxyapatite (HAp) ceramics prepared by existing conventional sintering requires high-temperature sintering of 1250 °C to 1300 °C. In this paper, the activated metakaolin (MK)/HAp specimens were prepared from varied mix design inputs,
Wan Mohd Arif W. Ibrahim, Mohd Mustafa Al Bakri Abdullah, Noorina Hidayu Jamil, Hasmaliza Mohamad, Mohd Arif Anuar Mohd Salleh, Andrei Victor Sandu, Petrica Vizureanu, Madalina Simona Baltatu, Patimapon Sukmak   +8 more
doaj   +1 more source

AVALIAÇÃO DA ESTRUTURA ELETRÔNICA DA FASE MONOCLINICA DO ÓXIDO DE NIÓBIO COM BASE NO USO DE DIFERENTES FUNCIONAIS DE DENSIDADE

Química Nova, 2021
ASSESSMENT OF THE ELECTRONIC STRUCTURE OF THE MONOCLINIC PHASE OF NIOBIUM OXIDE BASED ON THE USE OF DIFFERENT DENSITY FUNCTIONALS. Niobium oxides, Nb2O5, are considered semiconductor materials with very attractive physical and chemical properties for ...
Kamila S Ody, João P. A. de Jesus, Carlos E Cava, Anderson R Albuquerque, Ary S Maia, Julio R Sambrano, Felipe A. La Porta   +6 more
doaj   +1 more source

Physicochemical, Photocatalytic, Antibacterial, and Antioxidant Screening of Bergenia Ciliata Mediated Nickel Oxide Nanoparticles

Crystals, 2021
This study was planned to synthesize a multifunctional nanomaterial that can effectively encounter the organic pollutants, multidrug-resistant bacteria and reactive free radicals. The Bergenia ciliate (B.
Fazal Ur Rehman, Rashid Mahmood, Manel Ben Ali, Amor Hedfi, Amine Mezni, Sirajul Haq, Salah Ud Din, Rimsha Ehsan   +7 more
doaj   +1 more source

Magneto-thermo-piezo-elastic wave in an initially stressed rotating monoclinic crystal in a two-temperature theory

International Journal of Applied Mechanics and Engineering, 2023
This research problem is an investigation of wave propagation in a rotating initially stressed monoclinic piezoelectric thermo-elastic medium under with the effect of a magnetic field.
Anand Kumar YADAV
doaj   +1 more source

A monoclinic polymorph of theophylline [PDF]

Acta Crystallographica Section E Structure Reports Online, 2011
A monoclinic polymorph of theophylline, C(7)H(8)N(4)O(2), has been obtained from a chloro-form/methanol mixture by evaporation under ambient conditions. The new polymorph crystallizes with two mol-ecules in the asymmetric unit. The structure features inter-molecular N-H⋯O hydrogen bonds, resulting in the formation of dimers between two ...
Shuo Zhang, Andreas Fischer
openaire   +3 more sources

Study of the Synthesis of Zirconia Powder from Zircon Sand obtained from Zircon Minerals Malaysia by Caustic Fusion Method

Indonesian Journal of Chemistry, 2020
The zircon powder from Zircon Minerals Malaysia is a pure premium grade zircon sand milled 1.5 µm that contain ZrSiO4, ZrO2, HfO2, SiO2, Al2O3, TiO2, and Fe2O3.
Istikamah Subuki, Mimi Fazzlinda Mohsin, Muhammad Hussain Ismail, Fazira Suriani Mohamed Fadzil   +3 more
doaj   +1 more source

Seismic AVOA Inversion for Weak Anisotropy Parameters and Fracture Density in a Monoclinic Medium

Applied Sciences, 2020
In shale gas development, fracture density is an important lithologic parameter to properly characterize reservoir reconstruction, establish a fracturing scheme, and calculate porosity and permeability.
Zijian Ge, Shulin Pan, Jingye Li
doaj   +1 more source

Structural phase transitions in the Ag2Nb4O11 – Na2Nb4O11 solid solution [PDF]

, 2012
The phase transitions between various structural modifications of the natrotantite-structured system xAg2Nb4O11 – (1-x)Na2Nb4O11 have been investigated and a phase diagram constructed as a function of temperature and composition.
Babu, Bayer, Berlincourt, Carr, Craig, David I. Woodward, Ercit, Irle, Isupov, Jaffe, Jahnberg, Jahnberg, Martin R. Lees, Masó, Masó, Masó, Mattes, Newnham, Newnham, Palasyuk, Pam A. Thomas, Stennett, Weller, Woodward, Zheng   +24 more
core   +1 more source

Synthesis, Characterization and Crystal Structures of Mixed-Ligand Complexes of [Cu(bipy)₂N₃(ClO₄)] and [Cu(5,5’-DiMebipy)₂(N₃)](ClO₄)

Indonesian Journal of Chemistry, 2016
Two mixed –ligand complexes [Cu(bipy)2N3(ClO4)] and [Cu(5,5’-DiMebipy)2(N3)](ClO4) have been prepared and characterized. The compounds were characterized by elemental analyses, IR and UV-Visible spectroscopy, room temperature magnetic susceptibility ...
Oluwafunmilayo Florence Adekunle, Ray John Butcher, Oladapo Bakare, Joseph Anthony Orighomisan Woods, Olusegun Ayobami Odunola   +4 more
doaj   +1 more source

The Lyddane-Sachs-Teller relationship for polar vibrations in materials with monoclinic and triclinic crystal systems [PDF]

, 2016
A generalization of the Lyddane-Sachs-Teller relation is presented for polar vibrations in materials with monoclinic and triclinic crystal systems. The generalization is derived from an eigen displacement vector summation approach, which is equivalent to
Schubert, Mathias
core   +3 more sources