Blue Coloration and Colloidal Silver Growth in Float Glass for Automotive Defogger

Eiji Ichikura, Shigeaki Yonemori, Makoto Satoh and Yasuo Hayashi

Anomalous blue coloration of the fired silver
paste which occasionally occurs in the float glass
for automotive defogger is studied. The coloration
corresponds to the reflection maximum at ca. 450
nm, due to over-grown Ag colloids inside the
glass, the diameter of which is more than 8?10nm.
This coloration is subject to the glass composition
(Fe and surface Sn) and the firing condition
(temperature and time) of the glass.

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The Authors

Mr. Eiji Ichikura Eiji Ichikura Asahi Glass Mr. Eiji Ichikura is a specialist of X-ray micro-beam analysis(especially EPMA).<br> <br> The areas of his expertise includes; Glass material characterization, design of powder glass and glass-cer... Read more