Results 21 to 30 of about 54,335 (262)

The wet high intensity magnetic separation of magnesite ore waste [PDF]

open access: yesHemijska 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
doaj   +1 more source

MgO-based cements – Current status and opportunities

open access: yesRILEM Technical Letters, 2023
The cement industry is a major contributor to the anthropogenic CO2 emissions, with about 8% of all emissions coming from this sector. The global cement and concrete association has set a goal to achieve net-zero CO2 concrete by 2050, with 45% of the ...
Ellina Bernard   +9 more
doaj   +1 more source

Formation of Aluminum Titanate with Small Additions of MgO and SiO2 [PDF]

open access: yesMaterials Research, 2016
The formation of aluminum titanate was investigated by isothermal treatments of samples obtained from equimolar mixtures of alumina and titania, containing small amounts of silica and magnesia.
Cecilia Chaves Guedes-Silva   +3 more
doaj   +2 more sources

Magnesia (MgO) Production and Characterization, and Its Influence on the Performance of Cementitious Materials: A Review

open access: yesMaterials, 2020
This paper presents a literature review concerning the characteristics of MgO (magnesium oxide or magnesia) and its application in cementitious materials.
Nobre José   +4 more
semanticscholar   +1 more source

Variação do tamanho de grão da magnésia: um exemplo da complexidade de cerâmicas refratária Changing the magnesia grain size: an example of refractory ceramics complexity

open access: yesCerâmica, 2010
Concretos refratários alumina-magnésia apresentam um comportamento expansivo devido à espinelização in-situ, sendo que a fonte de magnésia e o seu tamanho de grão influenciam tal reação.
M. A. L. Braulio   +4 more
doaj   +1 more source

Pre-Symptomatic Disease Detection in the Vine, Chrysanthemum, and Rose Leaves with a Low-Cost Infrared Sensor

open access: yesAgronomy, 2021
Thermography is a technique based on infrared imaging, which is used nowadays to detect plants under stress caused by biotic and abiotic factors. In many cases, temperature changes have already been correlated with pathogen attacks.
Ioannis Vagelas   +2 more
doaj   +1 more source

Oxidative stress cytotoxicity induced by platinum-doped magnesia nanoparticles in cancer cells.

open access: yesBiomedicine & pharmacotherapy = Biomedecine & pharmacotherapie, 2021
The aim of this study was to prepare, characterize, and determine the in vitro anticancer effects of platinum-doped magnesia (Pt/MgO) nanoparticles.
Mohamed Qasim Al-Fahdawi   +13 more
semanticscholar   +1 more source

Effect of magnesia on properties and microstructure of alkali-activated slag cement

open access: yesWater Science and Engineering, 2011
The effect of magnesia burnt at 800-950°C on the properties, especially the shrinkage, of alkali-activated slag cement (AASC) was experimentally studied. Experimental results show that, although adding 4%-8% lightly-burnt magnesia may shorten the setting
Yong-hao Fang, Jun-feng Liu, Yi-qun Chen
doaj   +1 more source

Potential Benefits from Carbon Capture Utilisation and Methanol Production in Magnesite Processing Line

open access: yesMaterials Proceedings, 2023
Magnesite (MgCO3) is a carbonate mineral, which is calcinated and further processed to generate magnesia (MgO) refractory materials and other products. MgCO3 products are mainly used in the iron and steel industries, in cement manufacture as a refractory
Antonis Peppas   +3 more
doaj   +1 more source

Wettability of the System of Cast Iron and Magnesia Ceramics with Graphite [PDF]

open access: yesArchives of Foundry Engineering, 2022
In this paper examinations of high-temperature wetting tests of 3 systems of liquid alloy – cast iron in contact with ceramic materials: magnesia ceramics in combination with natural graphite were presented.
M. Hosadyna-Kondracka   +5 more
doaj   +1 more source

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