Quantifying the kinetics of crystal growth by oriented aggregation

Nathan Burrows, Virany M. Yuwono, R. Lee Penn

Research output: Contribution to journalArticle

31 Citations (Scopus)

Abstract

Oriented aggregation is a nonclassical crystal growth mechanism resulting in new secondary particles composed of crystallographically aligned primary crystallites. These secondary crystals often have unique and symmetry-defying morphologies, can be twinned, and can contain stacking faults and other significant defects. A wide range of materials, such as titanium dioxide, iron oxides, selenides and sulfides, and metal oxyhydroxides, are known to grow by oriented aggregation under certain conditions. Evidence for oriented aggregation also has been observed in natural materials. Over the last decade, reports of this crystal growth mechanism have appeared with increasing frequency in the scientific literature. The development of kinetic models aimed at improving our fundamental understanding as well as facilitating purposeful control over size, size distribution, and shape has ranged from simple dimer formation models to polymeric models and population balance models. These models have enabled detection and characterization of crystal growth by oriented aggregation using methods such as small-angle x-ray scattering, among others, in addition to transmission electron microscopy. As our fundamental understanding of oriented aggregation improves, novel and complex functional materials are expected to emerge. This article presents a summary of some recent results, methods, and models for characterizing crystal growth by oriented aggregation.

Original languageEnglish (US)
Pages (from-to)133-137
Number of pages5
JournalMRS Bulletin
Volume35
Issue number2
DOIs
StatePublished - Jan 1 2010

Fingerprint

Crystallization
Crystal growth
crystal growth
Agglomeration
Kinetics
kinetics
Functional materials
selenides
Stacking faults
Crystal symmetry
Sulfides
x ray scattering
Iron oxides
Crystallites
iron oxides
titanium oxides
crystal defects
Dimers
Titanium dioxide
crystallites

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Physical and Theoretical Chemistry

Cite this

Burrows, Nathan ; Yuwono, Virany M. ; Penn, R. Lee. / Quantifying the kinetics of crystal growth by oriented aggregation. In: MRS Bulletin. 2010 ; Vol. 35, No. 2. pp. 133-137.
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Quantifying the kinetics of crystal growth by oriented aggregation. / Burrows, Nathan; Yuwono, Virany M.; Penn, R. Lee.

In: MRS Bulletin, Vol. 35, No. 2, 01.01.2010, p. 133-137.

Research output: Contribution to journalArticle

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