Physical Properties of Mechanically Activated Grains

Petrov, Milan; Milošević, Siniša

doi:10.1007/978-1-4419-8666-5_26

Cited by 3 publications

(1 citation statement)

References 1 publication

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“…Ispitivanje je vršeno u vibro mlinu sa prstenovima Humbolt Wedag sa karakteristikama šarže [6][7][8][9] koja omogućavaju intenzivni MH tretman potrebnih komponenata;…”

Section: Materijal I Metodeunclassified

Mechanochemical-thermal process of obtaining masking pigment

Petrov¹,

Sokić²,

Gulisija³

et al. 2014

Zas Mat

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Mehanohemijsko-termički postupak dobijanja maskirnog pigmenta U ovom radu je ispitivana mogućnost dobijanja maskirnog pigmenta mehanohemijsko termičkim postupkom kao i energetsko učešće mehanohemijskog tretmana u dobijanju maskirnog pigmenta stehiometrijske formule Co 0,51 Zn 0,29 Mg 0,41 Cr 1,24 Al 0,24 Ti 0,31 O 4. Mehanohemijski i termički tretirani uzorci smeše oksida radi dobijanja kompleksnog spinela su eksperimentalno istraživani u više serija opita, pri čemu su menjani parametri vezani za rad visokoenergetskog vibracionog mehanoaktivatora. Mehanohemijskom aktivacijom smeše oksida (Cr 2 O 3 , C O-oksida, ZnO, TiO 2 , MgO i Al 2 O 3), u vibracionom mehanoaktivatoru sa prstenovima od 30; 60 i 90 min, a zatim termičkim tretiranjem u elektrootpornoj peći, pri vremenu zadržavanja uzorka od 1h, dobija se materijal spinelne strukture koji je pogodan kao maskirni pigment u vojnoj industriji.

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“…Ispitivanje je vršeno u vibro mlinu sa prstenovima Humbolt Wedag sa karakteristikama šarže [6][7][8][9] koja omogućavaju intenzivni MH tretman potrebnih komponenata;…”

Section: Materijal I Metodeunclassified

Mechanochemical-thermal process of obtaining masking pigment

Petrov¹,

Sokić²,

Gulisija³

et al. 2014

Zas Mat

Self Cite

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Energy conversion in phosphate ore grain mixture activated via ultra-centrifugal mill

Andrić

Terzić

Petrov

et al. 2015

International Journal of Mineral Processing

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Mechanical activation as sintering pre-treatment of talc for steatite ceramics

et al. 2014

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The effect of vibratory mill induced mechanical activation on the change of the particle size, crystallinity and the phase transformations of the minerals present in the activated material, was studied with the purpose of decreasing of the sintering temperature of talc (Mg3Si4O10(OH)2) as raw material which is the basic component of the steatite ceramics. The aims of the conducted investigation were, also, increasing of the reactivity of the comminuted raw material and establishing of the optimal activation period. The properties of the activated talc induced by mechanical force were expressed in form of the grain inertia change which was measured by means of automatic grain counter. Mechanically activated grains are the most convenient mineral form for physical concentration since the energy change of the mill-material system is recorded on them. The effect of dry grinding on the structure, particle size and shape of talc was studied by means of XRD, DTA and SEM/EDS methods. Activation of talc produced an increase of the starting surface area value progressively from 4.5 m2/g up to a maximum of 108.5 m2/g achieved at 30 min. A subsequent decrease of rate of surface area change and the rate of size reduction were observed following the prolonged grinding. Talc activated in vibratory mill for optimal 30 min showed properties which positively influence the decrease of sintering temperature and the increase of the sintering rate of steatite ceramics. [Projekat Ministarstva nauke Republike Srbije, br. 172057, br. 45008 i br. 33007]

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Physical Properties of Mechanically Activated Grains

Cited by 3 publications

References 1 publication

Mechanochemical-thermal process of obtaining masking pigment

Mechanochemical-thermal process of obtaining masking pigment

Energy conversion in phosphate ore grain mixture activated via ultra-centrifugal mill

Mechanical activation as sintering pre-treatment of talc for steatite ceramics

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