Forget everything you learned in school about glass: textbooks are already rewriting
From school bench, we were idle: glass — liquid — it slowly flows, the glass is an amorphous substance — it does not have a crystal lattice, the glass is, the glass is … We all studied, nothing interesting, read the textbooks, everything is written in them.
Well, what can be interesting in the glass? Humanity is familiar with this substance for several thousand years. But, for example, plastic, polymers, graphene … Everything new, unknown, study Yes, study. Know yourself, sit and do opening.
And it turns out to be accurately before the futility. These are all new-fashioned plastics and polymers are studied along and across, and about the glass (and, by the way, we do not know anything at all.
Modern science still does not know anything about how the glass melt is rejected, nothing is known, as with so many different chemical compositions, glass can have one and the same physical properties. Even a notorious crystal lattice, about which science declared that the glass didn’t have it as a fact, suddenly unexpectedly niggy … Found.
Yes Yes Yes! You did not hear. The glass found a crystal lattice. Naturally, not such, which is observed in the «traditional» crystalline substances, and there is a cross between strict order and chaos.
But it is!
For this notorious lattice, all chemists, physics and even journalists crashed into two camps. Each camp nominated, theoretically substantiated and, most importantly, practically proved its own glass theory.
At the head of the first camp, William Zachariasen (died in 1979), who put forward the theory of «deformed lattice» or a glass mesh. According to this theory, there are some tetrahedra in the glass, which are mixed with the void, and all together forms a certain network, an ordered structure.
At the head of the second camp, the Russian academician A. A. Lebedev stands, who claims that the glass is initially inherent in micro-crystallization: in the amorphous medium, the glass substances are located microstructures, which the researcher called «crystallites» (that is non-vulture).
I can say to the honor of our scientists that Lebedev’s theory today is considered more accurate. Americans, wanting to disprove his theoretical constructions, and, having spent a number of experiments, came to the conclusion that he was right than caused a small scandal in the scientific world.
However, not so long ago, data were obtained that refute both the other theory. Conducting the process of transit process from the molten state into a solid international group of scientists, it came to the conclusion that the crystal lattice in the glass is in all states, as if paradoxically sounded it.
Currently, the work on the study of glass properties continues — researchers are looking for a new theory that would explain all the properties of this material, but the new concept is still in its infancy.