Abrupt boundaries of intermediate phases and space filling in oxide glasses

K. Rompicharla; D. I. Novita; Ping Chen; P. Boolchand; M. Micoulaut; W. Huff

doi:10.1088/0953-8984/20/20/202101

Abrupt boundaries of intermediate phases and space filling in oxide glasses

Disordered Systems and Neural Networks 2009-11-13 v1

Authors: K. Rompicharla , D. I. Novita , Ping Chen , P. Boolchand , M. Micoulaut , W. Huff

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Abstract

Modulated DSC measurements on bulk (Na2O)x(GeO2)1-x glasses show a sharp reversibility window in the 14% < x < 19% soda range, which correlates well with a broad global minimum in molar volumes. Raman and IR reflectance TO and LO mode frequencies exhibit anomalies between xc(1) = 14% (stress transition) and xc(2) = 19% (rigidity transition), with optical elasticity power-laws confirming the nature of the transitions . Birefringence measurements dramatize the macroscopically stress-free nature of the Intermediate Phase in the reversibility window.

Keywords

oxide glasses intermediate phase reversibility window rigidity transition stress transition modulated DSC optical elasticity birefringence

Cite

@article{arxiv.0803.4109,
  title  = {Abrupt boundaries of intermediate phases and space filling in oxide glasses},
  author = {K. Rompicharla and D. I. Novita and Ping Chen and P. Boolchand and M. Micoulaut and W. Huff},
  journal= {arXiv preprint arXiv:0803.4109},
  year   = {2009}
}

Abrupt boundaries of intermediate phases and space filling in oxide glasses

Abstract

Keywords

Cite

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