OSTWALD RIPENING DURING LIQUID PHASE SINTERING - EFFECT OF VOLUME FRACTION ON COARSENING KINETICS.

P. W. Voorhees*, M. E. Glicksman

*Corresponding author for this work

Research output: Contribution to journalConference articlepeer-review

154 Scopus citations

Abstract

A fast algorithm for solving the multiparticle diffusion problem (MDP) is described, permitting simulation of coarsening dynamics by cyclic time-stepping and updating the diffusion solution for large random particle arrays. The rate constants controlling the growth of the average particle and particle distribution functions were obtained by numerical simulations up to a volume fraction of 0. 55. A new statistical mean field theory has been developed which reproduces the MDP simulation data accurately and makes clear how the linear mean-field approximations must be modified to describe real systems. The predictions compare favorably with experimental measurements made over a wide range of volume fraction solid of the kinetics of Ostwald ripening in liquid phase sintered Fe-Cu alloys.

Original languageEnglish (US)
Pages (from-to)1081-1088
Number of pages8
JournalMetallurgical transactions. A, Physical metallurgy and materials science
Volume15 A
Issue number6
StatePublished - Jun 1 1984
EventAct and Liq Phase Sintering of Refract Met and Their Compd - Atlanta, Ga, USA
Duration: Mar 9 1983Mar 9 1983

ASJC Scopus subject areas

  • Engineering(all)

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