The influence of foreign particles in the formation of polycrystalline solidification patterns

James A. Warren, László Gránásy, T. Pusztai, T. Börzsönyi, G. Tegze, Jack F. Douglas

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Crystallization of real materials is often influenced by impurities unintentionally introduced into the melt, although the influence of such heterogeneities has received relatively limited consideration in the scientific literature devoted to the modeling of crystal growth. Recent observations on clay-polymer blend films indicate that particulate additives, in addition to serving as nucleating agents, may also perturb crystal growth, leading to the formation of irregular dendritic morphologies. Here we examine the formation of these "dizzy dendrites" using a phase field theory in which randomly distributed foreign particle inclusions perturb the crystallization by deflecting the tips of the growing dendrite arms. We include a complete description of the equations solved, as well as a slight correction to our previous treatment of this problem.

Original languageEnglish
Title of host publicationSolidification Processes and Microstructures: A Symposium in Honor of Wilfried Kurz
EditorsM. Rappaz, C. Beckermann, R. Trivedi
Pages379-385
Number of pages7
Publication statusPublished - 2004
EventSolidification Processes and Microstructures: A Symposium in Honor of Wilfried Kurz - Charlotte, NC., United States
Duration: Mar 14 2004Mar 18 2004

Other

OtherSolidification Processes and Microstructures: A Symposium in Honor of Wilfried Kurz
CountryUnited States
CityCharlotte, NC.
Period3/14/043/18/04

Fingerprint

Crystal growth
Solidification
Crystallization
Polymer blends
Clay
Impurities

Keywords

  • Grain Boundaries
  • Heterogeneities
  • Solidification

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Warren, J. A., Gránásy, L., Pusztai, T., Börzsönyi, T., Tegze, G., & Douglas, J. F. (2004). The influence of foreign particles in the formation of polycrystalline solidification patterns. In M. Rappaz, C. Beckermann, & R. Trivedi (Eds.), Solidification Processes and Microstructures: A Symposium in Honor of Wilfried Kurz (pp. 379-385)

The influence of foreign particles in the formation of polycrystalline solidification patterns. / Warren, James A.; Gránásy, László; Pusztai, T.; Börzsönyi, T.; Tegze, G.; Douglas, Jack F.

Solidification Processes and Microstructures: A Symposium in Honor of Wilfried Kurz. ed. / M. Rappaz; C. Beckermann; R. Trivedi. 2004. p. 379-385.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Warren, JA, Gránásy, L, Pusztai, T, Börzsönyi, T, Tegze, G & Douglas, JF 2004, The influence of foreign particles in the formation of polycrystalline solidification patterns. in M Rappaz, C Beckermann & R Trivedi (eds), Solidification Processes and Microstructures: A Symposium in Honor of Wilfried Kurz. pp. 379-385, Solidification Processes and Microstructures: A Symposium in Honor of Wilfried Kurz, Charlotte, NC., United States, 3/14/04.
Warren JA, Gránásy L, Pusztai T, Börzsönyi T, Tegze G, Douglas JF. The influence of foreign particles in the formation of polycrystalline solidification patterns. In Rappaz M, Beckermann C, Trivedi R, editors, Solidification Processes and Microstructures: A Symposium in Honor of Wilfried Kurz. 2004. p. 379-385
Warren, James A. ; Gránásy, László ; Pusztai, T. ; Börzsönyi, T. ; Tegze, G. ; Douglas, Jack F. / The influence of foreign particles in the formation of polycrystalline solidification patterns. Solidification Processes and Microstructures: A Symposium in Honor of Wilfried Kurz. editor / M. Rappaz ; C. Beckermann ; R. Trivedi. 2004. pp. 379-385
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