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THE TEMPERATURE COEFFICIENT OF VISCOSITY AND ITS RELATION TO SOME OTHER PROPERTIES OF LIQUIDS AND GLASSES *
Author(s) -
Preston F. W.
Publication year - 1932
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1151-2916.1932.tb13945.x
Subject(s) - viscosity , thermodynamics , absorption (acoustics) , attenuation coefficient , materials science , temperature dependence of liquid viscosity , chemistry , wavelength , relative viscosity , optics , mineralogy , composite material , physics
A possible connection between the temperature coefficient of viscosity (not the viscosity itself), the latent heat of fusion or some similar work‐function, and the absorption spectrum of liquids and glasses is discussed. The three things seem to be connected in a fairly clear and simple manner. It is shown, for instance, that from viscosity data alone it is possible to predict the position of the ultra‐violet absorption band in glasses, and the black color of pitch. Also, that at high temperatures the ultra‐violet absorption band invades the visible spectrum and migrates down into the infra‐red, and that at room temperature the viscosity of typical soda‐lime‐silica glasses is of the order 1070 poises. A meaning is attached to the term “viscosity” at temperatures at which it can not be measured mechanically, and a means of tracing it optically down to absolute zero is suggested.