devitrification


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devitrification

[dē‚vi·trə·fə′kā·shən]
(chemistry)
The process by which the glassy texture of a material is converted into a crystalline texture.

devitrification

Crystallization in glass.
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6(Q1h)120 and PLAA6(Q1h)120 which demonstrates that the devitrification of RAF might occur at a higher temperature in these samples.
The secondary minerals nontronite and locally celadonite represent the first crystallised species lining the outer part of the cavities Other mineral phases occurring during the early stage were calcite and cryptocrystalline silica Nontronite was probably formed by basalt devitrification due to hydration, although ferromagnesian mineral phases present in the basalts might have also contributed to its formation.
2[degrees]C, the storage modulus began to decrease as the temperature increased because of the devitrification of the adhesive.
Subsequently U can be leached during the alteration or devitrification of the glass (Nash 2010).
Alkali-ion exchange during devitrification and hydration of glasses in ignimbrite cooling-units.
Herbert Insley (1923-1953) Petrographic microscope, devitrification, composition of cement clinker, powder x-ray diffraction, initiated course in petrographic microscopy.
Second, we took notice that the very high polarity of collagen, consisting of amino group, carboxyl group and active hydrogen, gives high adhesion under the hydrophilic state, the collagen shows a very unique devitrification phenomenon which has been said to show a softening at the temperature of approximately 0 [degree] C[16], and also the collagen has micro and complicated fiber shape, receiving an idea from the ecology of animals in cold climates.
Devitrification Behavior and Crystal-Glassy Mixed-Phase Structures Observed in Partially Crystallized Cu-Based Glassy Alloys
We do not assigned this last one to the RAF whose devitrification begins around 80[degrees]C and finishes around 130[degrees]C under the same crystallization conditions [40] and is expected to occur above its vitrification temperature in aged samples [22].
Nanocrystalline soft magnetic alloys prepared by devitrification of melt-spun amorphous ribbons are interesting because of their magnetic properties superior to previously used materials, offering large inductions and good temperature stability.
The highest level dyke samples exhibit microcrystalline texture consisting of intergrown fibrolites rimming quartz and feldspar phenocrysts, reflecting greater degrees and rates of supercooling or devitrification (Stirling 1981; MacLellan and Trembath 1991), akin to aplite.