Skip to main content
padlock icon - secure page this page is secure

Glass sintering with concurrent crystallisation. Part 2. Nonisothermal sintering of jagged polydispersed particles

Buy Article:

$27.00 + tax (Refund Policy)

We propose a model, translated into an algorithm, to simulate nonisothermal sintering of polydispersed glass undergoing concurrent crystallisation. The model is based on the two classical sintering stages proposed by Frenkel and Mackenzie-Shuttleworth. The input parameters are green density, particle size distribution, surface tension, viscosity, number of surface nucleation sites (N s) and crystal growth velocity. We test the model using physical parameters and densification rates for two distinct glasses: a (devitrifying) cordierite glass having a narrow distribution of jagged particles and an alumino-borosilicate glass, ABS (which is stable against crystallisation) having widely polydispersed jagged particles. The experimental densities of the compacts saturate at slightly different values than predicted. Entrapped gases or glass degassing explains the residual porosity in ABS while partial surface crystallisation accounts for density saturation in cordierite glass. The algorithm provides a powerful simulation tool to design the densification of (devitrifying or stable) glass compacts having any particle size distribution, subjected to any heating rate, thus minimising the number of time consuming laboratory experiments.
No References
No Citations
No Supplementary Data
No Article Media
No Metrics

Keywords:

Document Type: Regular Paper

Publication date: October 1, 2002

  • Access Key
  • Free content
  • Partial Free content
  • New content
  • Open access content
  • Partial Open access content
  • Subscribed content
  • Partial Subscribed content
  • Free trial content
Cookie Policy
X
Cookie Policy
Ingenta Connect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more