Paper Title:
Transparent Glass-Ceramics Derived from Spontaneously Crystallized Phosphosilicte Glasses
  Abstract

Transparent phosphosilicate glass-ceramics were prepared by heating the spontaneously crystallized precursor glasses in which crystals have formed during cooling of the melts. And the effects of compositional variation on the crystalline phases, degree of crystallization and transparency were investigated by using X-ray diffraction (XRD), differential scanning calorimetry (DSC) and scanning electron microscopy (SEM). It is found that Mg2+ tends to exist in silicate-rich phase rather than phosphate-rich phase, such MgO is more beneficial to the transparency of phosphosilicate glass-ceremics compared to CaO. In addition, the substitution of P2O5 for SiO2 enhances the tendency of phase separation, and hence the precipitation of Na2MgSiO4 crystals for the precursor glasses as well as glass-ceramics with good transparency.

  Info
Periodical
Advanced Materials Research (Volumes 239-242)
Edited by
Zhong Cao, Xueqiang Cao, Lixian Sun, Yinghe He
Pages
1096-1100
DOI
10.4028/www.scientific.net/AMR.239-242.1096
Citation
S. J. Liu, Y. F. Zhang, "Transparent Glass-Ceramics Derived from Spontaneously Crystallized Phosphosilicte Glasses", Advanced Materials Research, Vols. 239-242, pp. 1096-1100, 2011
Online since
May 2011
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Price
$32.00
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