Investigation of the Glassy State by the Method of Enforced Crystallisation
JSGT 1927 V11 T039-T052
The method of forced crystallisation makes it possible to crystallise every glass and to determine the temperature of the beginning of crystallisation as well as the melting point of the newly-formed crystals. In the glass under investigation a constant lowering of temperature is maintained so that the temperature is reached at which the number of spontaneously forming nuclei reaches its maximum value. This value can be very small, as, for instance, in my study of acid borates of sodium in mixtures approaching pure B2O3, which I was obliged to maintain at such temperature conditions for three weeks uninterruptedly until the crystals began to form.
J. F. Ponomareff
