Results 21 to 30 of about 5,714 (305)

Thermochemistry of MgCr2O4, MgAl2O4, MgFe2O4 spinels in SO2-O2-SO3 atmosphere [PDF]

Processing and Application of Ceramics, 2016
The present paper investigates high-temperature sulphate corrosion of basic refractory ceramics containing magnesium spinels (MgAl2O4, MgFe2O4, MgCr2O4 and their solid solutions) widely used in metallurgy, chemical, ceramic and glass industry. This group
Anna Gerle, Jerzy Piotrowski, Jacek Podwórny   +2 more
doaj   +1 more source

Tailoring of Magnesium Substitution on Structure and Magnetic Properties of Lithium Ferrites

Фізика і хімія твердого тіла, 2021
In this study is reported influence of Mg2+ doping on structure and magnetic properties of nano-sized Li0.5Fe2.5-XMgXO4 (0.0, 0.2, 0.4, 0.6, 0.8) synthesized using sol-gel auto-combustion method.
Julia Mazurenko
doaj   +1 more source

the origin of Abgarm ultramafic complex (South of Kerman province) [PDF]

پترولوژی, 2020
Abgarm ultramafic complex in the south of Kerman province is a part of Esfandagheh- Haji Abad ophiolite which is located in the northern edge of Zagros thrust. The complex contains harzburgites, lherzolites, dunites, and chromitites.
Raziyeh Alipour, Hesam Moeinzadeh, Hamid Ahmadipour   +2 more
doaj   +1 more source

Jedi Spinel from Man Sin, Myanmar: Color, Inclusion, and Chemical Features

Crystals, 2023
In the present study, we collected and investigated spinels from the Man Sin deposit in Myanmar using standard gemological testing, microscopic observation, EDXRF, and Raman spectrometry.
Yujie Gao, Mingyue He, Xueying Sun, Cuiling Zhen, Huihuang Li, Xiaotao Wei, Yizhi Zhao   +6 more
doaj   +1 more source

STREAM SEDIMENT CARTOGRAPHY OF KIMBERLITE OCCURRENCES IN KIMPANGU AND ITS SURROUNDINGS (CENTRAL KONGO, DEMOCRATIC REPUBLIC OF THE CONGO) USING GEOCHEMICAL SIGNATURES OF HEAVY MINERALS [PDF]

Geological Behavior
Microscopic analysis and interpretation of the geochemical signatures of heavy minerals collected during stream sediment execution in the Kimpangu agglomeration and surrounding area have revealed the existence of four mineralogical families: ilmenites ...
Christian MUPER, Emmanuel CIBAMBULA, Elie UTHERA, Odrick TUEMA   +3 more
doaj   +1 more source

Synthesis of Li1.05MxMn2-xO4 (M = Co3+ and/or Cr3+, x = 0.1 or 0.2) and their application as cathode materials for lithium-ion batteries

International Journal of Electrochemical Science, 2021
Pristine Li1.05Mn2O4 and its trivalent metal-substituted spinels of Li1.05MxMn2-xO4 (M = Co3+ and/or Cr3+, x = 0.1 or 0.2) were synthesized by a simple citric acid-assisted sol-gel method.
Xiuhua Zhang, Wanting Liu, Chenhao Zhao, Shasha Yang, Baoping Zhang   +4 more
doaj   +1 more source

Evolution mechanisms of MgO-Al2O3 in non-oriented silicon steel

工程科学学报, 2015
The evolution mechanisms of MgO-Al2O3 in the process of calcium treatment in non-oriented silicon steel were studied by laboratory experiments, with focus on the evolution process in the early and middle of calcium treatment.
SUN Yan-hui, ZHAO Yong, CAI Kai-ke, SUN Sai-yang, MA Zhi-fei, FANG Zhong-qiang   +5 more
doaj   +1 more source

Structural, Mechanical, Elastic, Electronic, Magnetic and Optical Properties of Spinel Compounds ATi2S4 (A=Ca, Sr and Ba): AB Initio Study

Annals of West University of Timisoara: Physics, 2023
This research explored the crystal structure, mechanical and elastic, electronic, magnetic, and optical properties of spinel compoundsATi2S4 (A=Ca, Sr and Ba).
Bousahla Mohammed Nadir, Bousahla Mohammed Alaa, Chahed Abbes, Bousahla Zouaoui, Rozale Habib, Bendjilali Hadjer   +5 more
doaj   +1 more source

Study of hyperfine interactions in spinel cobalt ferrite CoFe2O4 doped with Hf, Lu, and Yb using Mössbauer spectroscopy and perturbed γ-γ angular correlation

Конденсированные среды и межфазные границы
We studied hyperfine interactions (HFI) in spinel cobalt ferrite (ferrospinel) CoFe2O4 doped with Lu, Yb, and Hf (1 wt. %) by Mössbauer spectroscopy (MS) on 57Fe nuclei.
Viktor M. Vakhtel, Atanas I. Velichkov, Dimitar V. Karaivanov, Maria M. Milanova, Yuri G. Segal, Nargiza Temerbulatova, Dmitry V. Filosofov, Martin P. Tsvetkov   +7 more
doaj   +1 more source

The Spinel Explorer—Interactive Visual Analysis of Spinel Group Minerals

IEEE Transactions on Visualization and Computer Graphics, 2014
Geologists usually deal with rocks that are up to several thousand million years old. They try to reconstruct the tectonic settings where these rocks were formed and the history of events that affected them through the geological time. The spinel group minerals provide useful information regarding the geological environment in which the host rocks were
Maria Luján Ganuza, Gabriela Ferracutti, Maria Florencia Gargiulo, Silvia Mabel Castro, Ernesto A. Bjerg, M. Eduard Gröller, Kresimir Matkovic   +6 more
openaire   +3 more sources