Results 11 to 20 of about 909,392 (302)

Kinetics of Dissolution of an Amorphous Solid [PDF]

open access: yesThe Journal of Physical Chemistry B, 2018
The kinetics of dissolution of an amorphous solid is studied using a simple model of a glass that captures with reasonable accuracy the dynamic heterogeneities associated with the relaxation of an amorphous material at low temperatures. The intrinsic dissolution rate is shown to be proportional to the concentration of surface particles kinetically able
Ian Douglass, Peter Harrowell
openaire   +2 more sources

Topological Control on Silicates’ Dissolution Kinetics [PDF]

open access: yesLangmuir, 2016
Like many others, silicate solids dissolve when placed in contact with water. In a given aqueous environment, the dissolution rate depends highly on the composition and the structure of the solid, and can span several orders of magnitude. Although the kinetics of dissolution depends on the complexities of both the dissolving solid and the solvent, a ...
Pignatelli, Isabella   +3 more
openaire   +5 more sources

Evaluation of two white marbles for the correction of the aggressivity of fresh water of rivers

open access: yesScientific African, 2020
In order to correct aggressive water destined for consumption by remineralization, the kinetics of dissolution of marble, an available material primarily made of calcite, were determined.
T.N. Nguemtue   +3 more
doaj   +1 more source

Dual-barrel conductance micropipet as a new approach to the study of ionic crystal dissolution kinetics [PDF]

open access: yes, 2013
A new approach to the study of ionic crystal dissolution kinetics is described, based on the use of a dual-barrel theta conductance micropipet. The solution in the pipet is undersaturated with respect to the crystal of interest, and when the meniscus at ...
Massimo Peruffo   +11 more
core   +1 more source

A Comparative Study of the Biodurability and Persistence of Gold, Silver and Titanium Dioxide Nanoparticles Using the Continuous Flow through System

open access: yesNanomaterials, 2023
The potential for nanoparticles to cause harm to human health and the environment is correlated with their biodurability in the human body and persistence in the environment.
Odwa Mbanga   +2 more
doaj   +1 more source

Numerical modeling of dissolution process of spherical precipitates in alloys by differential quadrature method (DQM) [PDF]

open access: yesمواد نوین, 2021
Prediction of the dissolution kinetics of precipitates is important in various metallurgical processes such as welding, homogenization, and preheating of the age hardenable alloys.
nozar anjabin
doaj   +1 more source

Effect of divalent metal cations on hydroxyapatite dissolution kinetics relevant to dental caries and erosion. [PDF]

open access: yes, 2012
PhDIn recent years there has been an increasing awareness of the influence of various trace elements on reducing the progression of dental caries and of erosion. However, there are few clinical and even fewer in-vitro studies of the cariostatic effect of
Lingawi, Hanadi Saud
core   +2 more sources

The Kinetics of Calcite Dissolution/Precipitation

open access: yesJournal of Colloid and Interface Science, 1993
Abstract The channel-flow cell method is used to establish the dissolution/precipitation kinetics of calcite under wide ranges of bulk Ca1+ concentration (0-10 mM) and solution flow rate (10-30.3 cm3 s-1) for different bulk pH values. Detailed mathematical modeling of the heterogeneous reaction, and accompanying solution processes leads to the ...
Brown, C, Compton, R, Narramore, C
openaire   +2 more sources

Prediction of reversible α/γ phase transformation in multi-pass weld of Fe-Cr-Ni ternary alloy by phase-field method

open access: yesJournal of Advanced Joining Processes, 2021
Duplex stainless steel (DSS) is vulnerable to changes in the α/γ phase fraction due to the dissolution and precipitation of various compounds during multi–pass welding.
Dong–Cho Kim   +4 more
doaj   +1 more source

Experimental determination of plagioclase dissolution rates as a function of its composition and pH at 22°C. [PDF]

open access: yes, 2014
The steady-state, far-from-equilibrium dissolution rates of nine distinct plagioclases ranging in composition from An2 to An89 were measured in mixed flow reactors at 22 ± 2 C and pH from 2 to 11.
Gudbrandsson S., Wolff-Boenisch D., Gislason S. R. and Oelkers E. H.
core   +1 more source

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