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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Non-isothermal sinter-crystallization of jagged Li2O-Al2O3-SiO2 glass and simulation using a modified form of the Clusters model

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Author(s):
Soares, Viviane O. [1] ; Reis, Raphael C. V. M. [1] ; Zanotto, Edgar D. [1] ; Pascual, Maria J. [2] ; Duran, Alicia [2]
Total Authors: 5
Affiliation:
[1] Univ Fed Sao Carlos, Dept Mat Engn, Vitreous Mat Lab, BR-13565905 Sao Carlos, SP - Brazil
[2] CSIC, Inst Ceram & Vidrio, E-28049 Madrid - Spain
Total Affiliations: 2
Document type: Journal article
Source: Journal of Non-Crystalline Solids; v. 358, n. 23, p. 3234-3242, DEC 1 2012.
Web of Science Citations: 22
Abstract

We have tested a modified form of the Clusters model of sintering for the complex case of non-isothermal sintering with concurrent crystallization of a multicomponent lithium aluminum silicate (LAS) glass having a broad size distribution of jagged particles. We compared experimental and simulated densification data using a constant heating rate. Only one adjustable parameter was used: the particle shape factor (K-s). We discuss the results in light of some complicating factors, such as temperature gradients within the powder compacts and compositional shifts of the residual glass matrix due to crystallization, which lead to changes of viscosity. The modified Clusters model accurately predicted the temperature dependence of densification and the final (saturation) density of the glass particle compacts. (C) 2012 Elsevier B.V. All rights reserved. (AU)

FAPESP's process: 07/08179-9 - Kinetic processes in glasses and glass ceramics
Grantee:Edgar Dutra Zanotto
Support type: Research Projects - Thematic Grants
FAPESP's process: 10/18947-6 - Development of High-Toughness glass ceramics
Grantee:Viviane Oliveira Soares
Support type: Scholarships in Brazil - Post-Doctorate