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Surface Modification and Planar Defects of Calcium Carbonates by Magnetic Water Treatment.

Liu CZ, Lin CH, Yeh MS, Chao YM, Shen P - Nanoscale Res Lett (2010)

Bottom Line: Calcite were found to form faceted nanoparticles having 3x (01̄14) commensurate superstructure and with well-developed {112̄0} and {101̄4} surfaces to exhibit preferred orientations.The (hkil)-specific coalescence of calcite and rapid lath growth of aragonite under the combined effects of Lorentz force and a precondensation event account for a beneficial larger particulate/colony size for the removal of the carbonate scale from the steel substrate.The coexisting magnetite particles have well-developed {011} surfaces regardless of MWT.

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ABSTRACT
Powdery calcium carbonates, predominantly calcite and aragonite, with planar defects and cation-anion mixed surfaces as deposited on low-carbon steel by magnetic water treatment (MWT) were characterized by X-ray diffraction, electron microscopy, and vibration spectroscopy. Calcite were found to form faceted nanoparticles having 3x (01̄14) commensurate superstructure and with well-developed {112̄0} and {101̄4} surfaces to exhibit preferred orientations. Aragonite occurred as laths having 3x (01̄1) commensurate superstructure and with well-developed (01̄1) surface extending along [100] direction up to micrometers in length. The (hkil)-specific coalescence of calcite and rapid lath growth of aragonite under the combined effects of Lorentz force and a precondensation event account for a beneficial larger particulate/colony size for the removal of the carbonate scale from the steel substrate. The coexisting magnetite particles have well-developed {011} surfaces regardless of MWT.

No MeSH data available.


Appendix 1: Experimental setup for the MWT conducted in this study.
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Figure 11: Appendix 1: Experimental setup for the MWT conducted in this study.

Mentions: See figure 11


Surface Modification and Planar Defects of Calcium Carbonates by Magnetic Water Treatment.

Liu CZ, Lin CH, Yeh MS, Chao YM, Shen P - Nanoscale Res Lett (2010)

Appendix 1: Experimental setup for the MWT conducted in this study.
© Copyright Policy
Related In: Results  -  Collection

Show All Figures
getmorefigures.php?uid=PMC2991221&req=5

Figure 11: Appendix 1: Experimental setup for the MWT conducted in this study.
Mentions: See figure 11

Bottom Line: Calcite were found to form faceted nanoparticles having 3x (01̄14) commensurate superstructure and with well-developed {112̄0} and {101̄4} surfaces to exhibit preferred orientations.The (hkil)-specific coalescence of calcite and rapid lath growth of aragonite under the combined effects of Lorentz force and a precondensation event account for a beneficial larger particulate/colony size for the removal of the carbonate scale from the steel substrate.The coexisting magnetite particles have well-developed {011} surfaces regardless of MWT.

View Article: PubMed Central - HTML - PubMed

ABSTRACT
Powdery calcium carbonates, predominantly calcite and aragonite, with planar defects and cation-anion mixed surfaces as deposited on low-carbon steel by magnetic water treatment (MWT) were characterized by X-ray diffraction, electron microscopy, and vibration spectroscopy. Calcite were found to form faceted nanoparticles having 3x (01̄14) commensurate superstructure and with well-developed {112̄0} and {101̄4} surfaces to exhibit preferred orientations. Aragonite occurred as laths having 3x (01̄1) commensurate superstructure and with well-developed (01̄1) surface extending along [100] direction up to micrometers in length. The (hkil)-specific coalescence of calcite and rapid lath growth of aragonite under the combined effects of Lorentz force and a precondensation event account for a beneficial larger particulate/colony size for the removal of the carbonate scale from the steel substrate. The coexisting magnetite particles have well-developed {011} surfaces regardless of MWT.

No MeSH data available.