Author: Hemry J.D. Weinberg M.C. Uhlmann D.R.
Publisher: Springer Publishing Company
ISSN: 0022-2461
Source: Journal of Materials Science, Vol.33, Iss.15, 1998-08, pp. : 3853-3858
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Abstract
Transparent, durable films of lithium diborate gel can easily be prepared on a variety of substrates from supersaturated aqueous solutions of lithium hydroxide monohydrate and boric acid by spin-coating. The gel to dried gel to glass to crystalline lithium tetraborate (Li_2B_4O_7) transformation has been studied by infrared spectroscopy of thin films cast on potassium bromide windows. Examination by scanning electron microscopy disclosed that distinctly different crystal morphology was associated with a difference in the transformation rate observed between gel and dried gel films. Films of 250 nm to 30 μm in thickness have been produced.
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