Results 11 to 20 of about 1,509 (172)

Pressure Dependence of Magnesite Creep [PDF]

open access: yesGeosciences, 2019
We determined the activation volumes (V*) for polycrystalline magnesite with grain sizes of 2 and 80 µm deforming by low temperature plasticity (LTP) mechanisms (kinking and dislocation glide), diffusion creep, and dislocation creep at temperatures ...
Joseph W. Millard   +9 more
doaj   +3 more sources

MAGNESITE REFRACTORIES [PDF]

open access: yesJournal of the American Ceramic Society, 1920
n ...
Spotts McDowell, J., Howe, Raymond M.
openaire   +1 more source

The FTIR Spectra of Raw Magnesite and Sintered Magnesite [PDF]

open access: yesInternational Journal of Trend in Scientific Research and Development, 2018
Magnesite is a magnesium carbonate mineral because of its thermal stability and inertness. All the three grades of magnesite both in raw and sintered forms have vast applications. The FTIR spectra of raw magnesite and sintered magnesite samples have been recorded in the mid infrared region of 4000 450 cm 1.
D. Gopinath, S. Gunasekaran
openaire   +2 more sources

Rheology of magnesite [PDF]

open access: yesJournal of Geophysical Research: Solid Earth, 2014
AbstractWe deformed two natural magnesite aggregates (grain sizes of 1 versus 100 µm) over a wide range of temperatures (400–1000°C) and strain rates (10−7–10−4/s) in order to determine the deformation mechanisms of magnesite and their respective flow laws.
Caleb W. Holyoke   +3 more
openaire   +1 more source

Study on Selective Adsorption Behavior and Mechanism of Quartz and Magnesite with a New Biodegradable Collector

open access: yesSeparations, 2023
Research on the efficient flotation desilication of low-grade magnesite is of great significance for the sustainable development of magnesium resources.
Wenbao Liu   +6 more
doaj   +1 more source

Magnesites [PDF]

open access: yesJournal of Industrial & Engineering Chemistry, 1918
n ...
openaire   +2 more sources

Sub-pixel Mineral Mapping of Serpentine and Magnesite for Chromite Exploration, Using Hyperion (EO1) Images [PDF]

open access: yesAnalytical and Numerical Methods in Mining Engineering, 2023
Abdasht chromite mine is located in the ultramafic complex of southern Iran, which has abundant chromite reserves such as Soghan, Esfandagheh, Faryab, etc.
Saeed Khojastehfar   +2 more
doaj   +1 more source

Thermodynamic and Elastic Properties of Magnesite at Mantle Conditions: First‐Principles Calculations

open access: yesGeochemistry, Geophysics, Geosystems, 2018
Magnesite (MgCO3) is a likely main host of carbonates in the mantle and plays an important role in the transport and storage of carbon in the Earth's mantle. Its physical properties at high pressure and high temperature (PT) are crucial for understanding
Chao Yao   +3 more
doaj   +1 more source

Effect of Magnesite Diameter on Magnesite Reforming Rate

open access: yesKAGAKU KOGAKU RONBUNSHU, 2005
マグネサイト改質速度におよぼすマグネサイト粒径の影響を実験的に検討した.マグネサイトのみを加熱した場合,粒径が大きくなると分解速度定数は小さくなった.マグネサイトに硝酸マグネシウム6水和物を混合した場合,粒径10−3 m以上では,マグネサイトのみかけの分解速度定数が無添加の場合とほぼ同じであった.一方,マグネサイトの粒径が10−3 m以下の場合,みかけの分解速度定数は粒径の−2乗に比例して大きくなることがわかった.
Ohira, Yuichi   +3 more
openaire   +1 more source

Study on the Preparation and Optical Properties of Ce3+ Doped GdAlO3 Nanoparticles by Co-Precipitation Method

open access: yesCrystals
Nanoparticles of GdAlO3:Ce were synthesized with sodium dodecylbenzene sulfonate (SDBS) as the dispersant and ammonia as the precipitant by co-precipitation reaction to prepare precursors under different conditions.
Pengyuan Qi   +5 more
doaj   +1 more source

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