Results 81 to 90 of about 285,542 (360)
Journal of Economic Geology, 2013 Zafarabad iron deposit is located northwest of Divandareh, in the northern margin of Sanandaj-Sirjan plutonic-metamorphic zone. The deposit is in lentoid to tubular shape, within a shear zone and occrrued in host rocks of calc-schist and limestone ...
Mehrdad Barati, Meysam Gholipoor
doaj
Un depozit de obiecte din bronz descoperit la Pătrăuți, com. Pătrăuți, jud. Suceava
Arheologia MoldoveiA deposit made up of six bronze artifacts (a Transylvanian type celt, a chisel with a tube, three sickles with “button” and a raw fragment) was accidentally discovered in 2018, in the forest near Pătrăuţi village (on the road to Dragomirna), Suceava ...
Ion Mareș
doaj +1 more source
Nanochemical Processes In Solid-Phase Reduction Of Ferrioxide-Silicate Materials [PDF]
, 2013 Solid-phase carbon reduction of ferrioxide-silicate materials have been investigated on example of sedimentary iron ores of Kerch deposit. It was shown that nanochemical iron oxide reduction to sponge iron with flux-mineralizers is accomplished due to ...
Ilyashov, M.A. +4 more
core
Assessing Altered Coating Adhesion on Plasma‐Deoxidized Surfaces Under Oxygen‐Free Conditions
Advanced Engineering Materials, EarlyView.This study demonstrates the effectiveness of atmospheric pressure plasma pretreatment in modifying silicon and stainless steel surfaces to improve adhesion. Argon‐hydrogen plasma increases surface roughness and improves adhesion strength, whereas pure argon results in smoother surfaces and structural changes.
Selina Raumel +6 more
wiley +1 more source
Brazilian Journal of GeologyChemical signatures of iron oxides from dolomitic itabirite and high-grade iron ore from the Esperança deposit, located in the Quadrilátero Ferrífero, indicate that polycyclic processes involving changing of chemical and redox conditions are responsible ...
Lucilia Aparecida Ramos de Oliveira +4 more
doaj +1 more source
X-ray photoelectron spectroscopy study of radiofrequency-sputtered refractory compound steel interfaces [PDF]
Radiofrequency sputtering was used to deposit Mo2C, Mo2B5, and MoSi2 coatings on 440C steel substrates. Both sputter etched and preoxidized substrates were used, and the films were deposited with and without a substrate bias of -300 V. The composition of
Brainard, W. A., Wheeler, D. R.
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Investigation into high-temperature corrosion in a large-scale municipal waste-to-energy plant
, 2010 High-temperature corrosion in the superheater of a large-scale waste-to-energy plant was investigated. A comparison of nickel-/iron-based alloys and austenitic stainless steel probes placed in the furnace demonstrated that temperature and particle ...
Finney, K.N. +6 more
core +1 more source
Advanced Engineering Materials, EarlyView.This study demonstrates how optimizing laser power, scanning speed, and hatching distance in laser powder bed fusion can boost the productivity of Inconel 718 manufacturing by up to 29% while maintaining mechanical integrity. The work delivers a validated process window and cost–time analysis, offering industry‐ready guidelines for efficient additive ...
Amir Behjat +7 more
wiley +1 more source
A Discussion on Genetic Mechanism of the Kuerqis Iron Deposit in Fuyun County, Xinjiang
Yankuang ceshi, 2013 The large iron deposits in the southern margin of Altay had been studied systematically, but researches on some small Fe-rich type such as Kuerqis iron deposit are still obviously insufficient.
ZHANG Chao, LIU Fen, YANG Fu-quan
doaj
Weathering of the Ethiopian volcanic province: a new weathering index to characterize and compare soils [PDF]
, 2015 © Walter de Gruyter Berlin/Boston 2015.Soil formation occurs through numerous physical and chemical weathering processes acting to alter the parent rock on the Earths surface.
Baxter, PJ +6 more
core +1 more source