Kinetics of the Massicot‐Litharge Transformation During Comminution

Lin, I. J.; Niedzwiedz, S.

doi:10.1111/j.1151-2916.1973.tb12358.x

Cited by 16 publications

(7 citation statements)

References 7 publications

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“…2 also shows polonged milling duration in impact milling (IM) reduced massicot content in precursor drastically. Massicot can be transformed readily to litharge with a mechanical stimulation at room temperature; similar findings have been reported by Lin and Niedzwiedz [15].…”

Section: Resultssupporting

confidence: 71%

Effect of Impact Milling and Ball Milling on Microstructure of Lead Titanate Powders Synthesized by Solid-State Reaction

Choo¹,

Murshidi²,

Mohamad³

et al. 2013

JMSE-B

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Abstract:Single phase lead titanate (PbTiO 3 ) was prepared by solid-state route using lead (II) oxide (PbO) and titanium dioxide (TiO 2 ) as precursors. The effects of using impact mill (IM) and ball mill (BM) in solid state reaction have been observed. X-ray diffraction (XRD) pattern was recorded at room temperature and analyzed by employing Rietveld method. X-ray diffraction (XRD) pattern shows that the PbTiO 3 particles are tetragonal with tetragonality (c/a) ratio ranging from 1.058 to 1.063 and average crystallite size from 40.8 to 64.2 nm. It is found that the impact mill (IM) can be used to produce pure tetragonal perovskite with a lower tetragonality and average crystallite size.

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Section: Resultssupporting

confidence: 71%

Effect of Impact Milling and Ball Milling on Microstructure of Lead Titanate Powders Synthesized by Solid-State Reaction

Choo¹,

Murshidi²,

Mohamad³

et al. 2013

JMSE-B

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“…Some studies have reported on the PbO transformation during the milling process. The stress‐induced PbO‐massicot to PbO‐litharge transformation was reported a long time ago for the PbO system 31 . The PbO transformation was also observed in the mechano‐synthesis of Pb(Zn 1/3 Nb 2/3 )O 3 –PbTiO 3 (PZN–PT) 19 .…”

Section: Resultsmentioning

confidence: 78%

Mechano‐Synthesis of Lead–Magnesium–Niobate Ceramics

Kuščer

Holc

Kosec

et al. 2006

Journal of the American Ceramic Society

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The synthesis of Pb(Mg 1/3 Nb 2/3 )O 3 (PMN) with high-energy milling was studied by X-ray powder diffraction (XRD) using the Rietveld-refinement method. The results are discussed in terms of the qualitative and quantitative composition of the crystalline and amorphous phases as a function of milling time. The mechano-synthesis of PbO, Nb 2 O 5 , and MgO leads to the formation of perovskite PMN. In the initial stage of milling, particle size reduction and a high degree of amorphization were observed, together with the simultaneous formation of perovskite and pyrochlore-type structures. A mechanism for the formation of PMN by the mechano-synthesis route is proposed.

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“…The transformations of lithargemassicot and massicot -litharge were reported for milling of PbO and the transformation aragonite -calcite and calcitearagonite were observed during the milling of calcium carbonate. The kinetics of the massicot -litharge (massicot = orthorhombic a-PbO, litharge = tetragonal b-PbO) polymorphous transformation in a rotation ball mill has been studied 121,133 a-PbO -b-PbO…”

Section: Oxidic Compoundsmentioning

confidence: 99%

Hallmarks of mechanochemistry: from nanoparticles to technology

et al. 2013

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The aim of this review article on recent developments of mechanochemistry (nowadays established as a part of chemistry) is to provide a comprehensive overview of advances achieved in the field of atomistic processes, phase transformations, simple and multicomponent nanosystems and peculiarities of mechanochemical reactions. Industrial aspects with successful penetration into fields like materials engineering, heterogeneous catalysis and extractive metallurgy are also reviewed. The hallmarks of mechanochemistry include influencing reactivity of solids by the presence of solid-state defects, interphases and relaxation phenomena, enabling processes to take place under non-equilibrium conditions, creating a well-crystallized core of nanoparticles with disordered near-surface shell regions and performing simple dry time-convenient one-step syntheses. Underlying these hallmarks are technological consequences like preparing new nanomaterials with the desired properties or producing these materials in a reproducible way with high yield and under simple and easy operating conditions. The last but not least hallmark is enabling work under environmentally friendly and essentially waste-free conditions (822 references).

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Kinetics of the Massicot‐Litharge Transformation During Comminution

Cited by 16 publications

References 7 publications

Effect of Impact Milling and Ball Milling on Microstructure of Lead Titanate Powders Synthesized by Solid-State Reaction

Effect of Impact Milling and Ball Milling on Microstructure of Lead Titanate Powders Synthesized by Solid-State Reaction

Mechano‐Synthesis of Lead–Magnesium–Niobate Ceramics

Hallmarks of mechanochemistry: from nanoparticles to technology

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