Effect of impurity on two-dimensional nucleation kinetics: case studies of magnesium and zinc on hydroxyapatite (0001) face
Article Abstract:
The edge free energy, (gamma), on the (0001) face of a hydroxyapatite crystal in the presence of magnesium and zinc as impurities was estimated for determining the effect of impurity on the two-dimensional (2D) nucleation rate J. Results indicated that the impurities inhibited the growth rate of the (0001) face by adsorbing at kink sites of 2D island, and up to a certain concentration, magnesium and zinc did not affect the energy barrier for 2D nucleation.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 2001
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Direct growth rate measurement of hydroxyapatite single crystal by Moire phase shift interferometry
Article Abstract:
A study was conducted to determine the growth rate of hydroxyapatite (001) in pseudophysiological solution by Moire phase shift interferometry. The hydroxypatite crystals were prepared by the hydrolysis of monetite based on a reaction process. Common-type interferometry was utilized to eliminate disturbances from mechanical vibrations. Results indicated that layers grown on the seed crystals were calcium-deficient hydroxypatite.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 1998
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Medium effects on the reductive cleavage of the carbon-halogen bond in methyl and methylene halides
Article Abstract:
A study to determine the thermodynamics and kinetics of dissociative electron transfer to a series of small aliphatic halocarbon molecules, including CH3Br, CH2Br2, CH3I, and CH2I2 was performed. The kinetics of halocarbon reduction may be enhanced due to the change in the reaction medium.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 2001
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