Industrial Borate Glasses
One of the first factory produced boro-silicate glasses was made by Maës in Clichy, France around 1850. It was a glass one would call today a “boro-silicate crown” and its composition, according to an analysis reported by E. Zschimmer , was 56% silica, 7% boric acid, 17% potassia, 2% calcia, 14% zinc oxide, 4% lead oxide. Articles made of this glass included hollow ware and most likely optical elements. Although there appears to be no direct connection between this early boro-silicate glass and today’s wide variety of boron containing glasses, optical elements and hollow ware for special applications are still articles produced commonly from them.
KeywordsZinc Silicate Chromium Cobalt Boron
Unable to display preview. Download preview PDF.
- Zschimmer, E.: Die Glasindustrie in Jena, Eugen Diederichs Verl., Jena, 1912.Google Scholar
- Sullivan, E.C. and Taylor, W.C.: U.S. Pat. 1,304,622 and 1,304, 623 (1919).Google Scholar
- Deeg, E. and Richter, H.: Glas im Laboratorium, Editio Cantor, Aulendorf, 1965.Google Scholar
- Matthiesen, A.: Phil, Mag. (4), 31 (1866), p. 149.Google Scholar
- Deeg, E.: Glastechn. Ber. 31 (1958), p. 8.Google Scholar
- Weber, R.: Ann. Phys. 6 (1879), p. 431.Google Scholar
- Hood, H.P. and Nordberg, M.E.: U.S. Pat. 2,106,744 (1938) and 2,221, 709 (1940).Google Scholar
- Deeg, E.W., Krohn, D. ik.and Graf, R.E.: U.S. Pat. 3, 935, 020 (1976)Google Scholar
- Armistead, W.H. and Stookey S.D.: U.S. Pat. 3,208, 860 (1965)Google Scholar