Nanocomposite Magnetic Powder Materials using Mechano-chemical Synthesis

Mofa, N. N.; Ketegenov, T. A.; Mansurov, Zulkhair A.; Soh, Dea Wha

doi:10.4313/teem.2004.5.1.029

Cited by 3 publications

(3 citation statements)

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“…The difference between the silicon dioxide modifications (crystalline, amorphous) and the time of their activation affect the degree of carbonization, the onset and the development of the self-propagating high-temperature synthesis in the (SiO 2 + Al) system, and the phase composition and the properties of the synthesized materials. Compared to amorphous silicon dioxide, preliminarily mechanically activated quartz is carbonized to a higher degree, most probably, due to the defect structure of quartz and the presence of iron inclusions formed upon interaction with the walls of the steel vessel and milling balls during mechanical treatment of the powder in the planetary centrifugal mill [5,6].…”

Section: Resultsmentioning

confidence: 99%

Self-propagating high-temperature synthesis of nitride-and carbide-containing composite materials based on mechanically activated quartz

et al. 2008

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The possibility of preparing multicomponent refractory composites based on quartz-containing raw materials by self-propagating high-temperature synthesis is investigated. It is demonstrated that the combined use of preliminary mechanochemical treatment, thermal carbonization, and modification of batch mixtures with nitrogen-containing additives favors the formation of carbide and nitride phases in the synthesis products.

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Section: Resultsmentioning

confidence: 99%

Self-propagating high-temperature synthesis of nitride-and carbide-containing composite materials based on mechanically activated quartz

et al. 2008

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“…We selected these objects of study because MA quartz and mixtures based on it exhibit ferromagnetic properties and are distinguished by good sorption ability toward organic substances, the synthesized sorbents were used to collect petroleum spill over water, high water purification, etc. 44,45) . A ball mill from "NPO Mekhanobr" was used, the ratio between the weight of ball loading Mb to that of quartz M was set equal to 4 at Mb M 480 120 600 g. The number of balls N 120, and the totaled surface area b ≈ 370cm…”

Section: Arw Processes Caused By the Ma Of Quartzmentioning

confidence: 99%

“…Fig. 2 -quartz (preparation of a magnetic composite 18,33,34,44,45) ). MA time varied from 5 to 90 minutes.…”

Section: Kinetics and Simulation Of Arwmentioning

confidence: 99%

Phenomenology, Kinetics and Application of Abrasive-Reactive Wear during Comminution (Overview)

Уракаев

Шевченко

2007

KONA

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Valuable information on the phenomenology of mechanical activation will be obtained from the accurate characterization of wearing processes that take place within mechanochemical reactors. Favoring the contamination of reactant powders with material from a reactor s debris, for a long time such processes represented one of the greatest limitations to practical mechanochemistry applications. We will focus on two related aspects of mechanochemical processing by grinding in a ball mill: (i) nanoscale wear of the treated substances and of the milling tools (balls and container wall); and (ii) deposition of a powder coating on the surface of the milling tools (self-lining phenomenon). A new technology called abrasive-reactive wear (ARW) has been developed that utilizes wear debris as an integral component of the reaction system rather than treating it as a harmful impurity. This technology is applied to the preparation of nanocomposites and to the processing of mineral raw materials and industrial byproducts. This review includes preparation experiments, material characterization, ARW kinetics and simulation. Besides developing new technologies, ARW will contribute to a better understanding of the mechanochemical or mechanical alloying process in general.

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Mechanochemical treatment of silicon dioxide as an effective tool for regulating the SHS of composites

Mofa

Mansurov

Акназаров

2011

Int. J Self-Propag. High-Temp. Synth.

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Nanocomposite Magnetic Powder Materials using Mechano-chemical Synthesis

Cited by 3 publications

References 0 publications

Self-propagating high-temperature synthesis of nitride-and carbide-containing composite materials based on mechanically activated quartz

Self-propagating high-temperature synthesis of nitride-and carbide-containing composite materials based on mechanically activated quartz

Phenomenology, Kinetics and Application of Abrasive-Reactive Wear during Comminution (Overview)

Mechanochemical treatment of silicon dioxide as an effective tool for regulating the SHS of composites

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