devitrifikasyon

listen to the pronunciation of devitrifikasyon
التركية - الإنجليزية
devitrification
The formation of small crystals in a glass as a result of slow cooling from the molten state
The act or process of devitrifying, or the state of being devitrified
the process in which a glass (noncrystalline or vitreous solid) transforms to a crystalline solid
A crystalline growth that appears as a scum or matte finish on the surface of some glasses when heated to fusing temperatures
in the glassy base, which are then called devitrification products
The term literally means "un-glass" and means just that Under certain adverse conditions the elements at the surface of glass can break down and leave a white powdery-looking deposit Sometimes devitrification can be eliminated by reheating, but often it cannot and it must be removed by acid-polishing
(1) The process whereby glass becomes partly crystallized as it cools (usually too slowly) from the molten state; (2) the crystals formed by this process Devtrification may also occur on the surface as a result of the unstable composition of the glass, unsuccessful annealing or accidental firing It is not caused by reaction between the glass and its environment, which is known as weathering
{i} act of becoming crystalline and brittle (Geology)
Specifically, the conversion of molten glassy matter into a stony mass by slow cooling, the result being the formation of crystallites, microbites, etc
The crystallization of a ceramic melt during cooling Devitrification is desirable in achieving certain visual effects (e g matteness) and undesirable when a transparent or glossy transparent glaze is desired
devitrifikasyon
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