Reports

Phase Separation in Pyrex Glass

Science  25 Apr 1969:
Vol. 164, Issue 3878, pp. 418-419
DOI: 10.1126/science.164.3878.418

Abstract

The contrast between phases in pyrex glass was heightened for viewing in the electron microscope by exchanging silver ions for sodium ions in the glass. The scale of phase separation in pyrex was foud to be about 30 angstroms; sample of commercial soda-lime glass, prepared in the same way, showed no phase separtion.

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