Results 11 to 20 of about 32,757 (297)
Journal of Taibah University for Science, 2020 The quest for improved visible light absorption in ZnO-based photocatalysts and photodetectors is a prevailing research problem. One method of solving this problem is by narrowing the band gap of this material well into the range of visible light energy.
Hakeem Sanya Bolarinwa +4 more
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The wet high intensity magnetic separation of magnesite ore waste [PDF]
Hemijska Industrija, 2019 The wet high intensity magnetic separation of magnesite ore waste stocked in an open pit of a magnesite mine was investigated in this paper. The received sample was subjected to physical, chemical, thermal and phase characterizations.
Atasoy Ahmet
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Nano–Crystalline Mn–Ni–Co–O Thermistor Powder Prepared by Co–Precipitation Method
Powders, 2023 Here, we demonstrate that nano–sized Mn–Ni–Co–O powder can be prepared at a low temperature via a co–precipitation method. In this work, Mn2+ was partially oxidized to Mn3+ ions in an aqueous solution by adding an oxidizing agent (H2O2).
Duc Thang Le, Jeong Ho Cho
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Heating rate dependence of anatase to rutile transformation [PDF]
Processing and Application of Ceramics, 2016 Commercial titania powders were calcined in order to investigate the influence of the heating history on the thermally stable phase (rutile). Temperatures from 620 to 700 °C and heating rates from 50 to 300 °C/h were used in order to evaluate their ...
Pietro Galizia +2 more
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Synthesis of high purity magnesia MgO from Algerian dolomite ore [PDF]
Journal of Mining and Metallurgy. Section B: Metallurgy, 2023 A nanometric Mg(OH)2 and MgO particles with high purity were successfully synthesized from Algerian dolomite via a leaching-precipitation-calcination process. The effect of leaching parameters, such as H2SO4 acid concentration (C), temperature (T), time (
Bouchekrit C. +3 more
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Cerâmica, 2002 O interesse crescente no uso de argilas para a produção de cerâmica no Rio Grande do Norte requer a caracterização técnica das matérias primas. Este trabalho mostra algumas propriedades de cinco argilas encontradas nesta região, tais como coloração após ...
M. A. F. Melo +5 more
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Phosphate Cements Based on Calcined Dolomite: Influence of Calcination Temperature and Silica Addition [PDF]
Materials, 2021 The aim of this study is to assess the possibility of obtaining phosphate cements based on dolomite calcined at various temperatures with/without quartz sand addition. A lower calcination temperature of dolomite (1200 °C) determines a high increase in the system temperature when calcined dolomite is mixed with KH2PO4 (MKP) solution and also a rapid ...
Cristina Andreea Vijan +3 more
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Production Method that Leads to TiO2 Nanofibrous Structure Usable in Food Packaging
Acta Technologica Agriculturae, 2016 Burned inorganic nanofibers most often occur in the nature in two forms: rutile and anatase. Today, the production of rutile is about to end, while anatase provides more application possibilities.
Kovář Radovan
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Medžiagotyra, 2018 Sm2Ti2O7 was loaded on the surface of HZSM-5 zeolite through a sol-gel route. HZSM-5 particles were coated with a thick layer of Sm2Ti2O7 to form the composite. It was found that crystallization of pyrochlore phase Sm2Ti2O7 begins at 800 °C.
Wenjie ZHANG, Yuxuan LIU, Ling DU
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Preparation of Cerium Dioxide by Calcination of Cerium Formate
He huaxue yu fangshe huaxue, 2022 Cerium formate after the reaction of cerium nitrate with formic acid was used as raw material for calcination. The calcined products were characterized under different conditions, and the particle size, specific surface area, morphology, carbon content ...
JIA Hong-wei +4 more
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