MOTS EN ANGLAIS EN RAPPORT AVEC «DEVITRIFICATION»
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10 LIVRES EN ANGLAIS EN RAPPORT AVEC «DEVITRIFICATION»
Découvrez l'usage de
devitrification dans la sélection bibliographique suivante. Des livres en rapport avec
devitrification et de courts extraits de ceux-ci pour replacer dans son contexte son utilisation littéraire.
1
Techniques of Kiln-formed Glass
One strategy sometimes employed to prevent the formation of devitrification is to
use a fine layer of soft low- fluxing glass on the surface of the glass. This is
administered in a liquid suspension as a wet coating by brush or spray. This
keeps the ...
With increasing time for Czochralski growth of silicon, devitrification of silica
crucible has been observed at the interface between liquid silicon and the
crucible. Cristobalite was the only product of devitrification. The estimated
temperature of ...
3
Dictionary of Glass: Materials and Techniques
98 DEVITRIFICATION responsible for large-scale production, devitrification is
something of a nightmare and as far as is reasonably possible, both glass
composition and the cooling rates are designed to avoid it happening. Because
of this ...
4
The Complete Book on Glass and Ceramics Technology
However, a number of investigation have shown that even relatively small
percentage of second oxide have an appreciable effect on the devitrification rate.
Dietzel have measure the devitrification of a number of glasses in the Na2O-SiO2
...
NIIR Board of Consultants & Engineers,
2005
5
U.S. Geological Survey professional paper
Perhaps the tightly interlocking crystals of calcite prevented circulation of water,
and devitrification therefore was inhibited (Marshall, 1961, has suggested that
devitrification in the absence of water normally proceeds slowly). Incipient ...
Geological Survey (U.S.),
1902
6
Geological Survey Professional Paper
... such as the nature of welding, devitrification, vapor-phase crystallization, and
development of thermal remanent magnetism; and (4) evaluation of indirect
methods of obtaining temperatures in pyroclastic deposits, such as infrared
absorption ...
Geological Survey (U.S.),
1996
7
Tuffs: Their Properties, Uses, Hydrology, and Resources
POSTDEPOSITIONAL PROPERTIES Devitrification Crystallization and Alteration
The defining constituent of any magma is molten rock, but few magmas are
entirely liquid. Magmas are generally erupted with some proportion of crystals ...
8
Igneous and Metamorphic Petrology
The other secondary crystallization that occurs in ash-flow deposits is
devitrification of glass shards and pumice (Figures 7.35). Devitrification chiefly
affects the middle to upper parts of the deposit; the lower boundary of
devitrification against ...
9
5th Annual Conference on Composites and Advanced Ceramic ...
ponents can stabilize the base glass; together in the RCG coating they give it a
substantial resistance to devitrification. The stabilization of the base glass
achieved by the boron silicide is the result of its partial oxidation at 1200 °C
during ...
10
Archaeological Conservation Using Polymers: Practical ...
ARCHAEOLOGICAL conservat1on Devitrification USING POLYMERS
Devitrification is a natural process that occurs in siliceous material. In flint and
obsidian, this process provides the basis for obsidian hydration dating. The
surface of any ...
10 ACTUALITÉS CONTENANT LE TERME «DEVITRIFICATION»
Découvrez de quoi on parle dans les médias nationaux et internationaux et comment le terme
devitrification est employé dans le contexte des actualités suivantes.
Stage Optimizes Electron, Correlative Microscopy Workflow
The cassette can be easily and safely transported from the observation chamber—without contamination or devitrification—to an electron ... «Laboratory Equipment, févr 15»
RF Heating of Magnetic Nanoparticles Improves the Thawing of …
... that is much less susceptible to the typical failures encountered with traditional thawing approaches (including cracking and devitrification). «Scicasts, oct 14»
The Features and Options of the Marshall Tubular Furnaces Series …
... are involved or for quartz work tubes operating at temperatures causing devitrification due to contamination by the standard mullite muffle. «Azom.com, août 14»
Glass: a fragile industry?
By controlling the temperature of cooling, [this] avoids devitrification or crystallisation,” Felix Antonio Martinez Sendoya, Colombian Silica's CEO ... «Industrial Minerals, mars 13»
Mars Exploration Rovers Update: Opportunity Begins Wrapping …
But they could be concretions of a different kind than the blueberries, or impact spherules, or perhaps devitrification spherules as previously ... «The Planetary Society, mars 13»
Mars Exploration Rovers Update: Opportunity Zeroes In on Clay …
Or they could be impact spherules, or devitrification spherules formed of glassy material that crystallizes into spherical structures. Although most ... «The Planetary Society, janv 13»
Mars Exploration Rovers Update: Opportunity Finds Thrill of …
Another notion is that they could be "devitrification spherules that form when glassy materials crystallize producing radiating crystals in ... «The Planetary Society, oct 12»
Mars Opportunity rover reaches Matijevic Hill
... impact spherules formed in impact events, or devitrification spherules resulting from formation of crystals from formerly melted material. «TG Daily, sept 12»
Mars rover Opportunity working at 'Matijevic Hill' site
Others include that they may be accretionary lapilli formed in volcanic ash eruptions, impact spherules formed in impact events, or devitrification ... «Phys.Org, sept 12»
GIA Discovers Lead Glass-Filled Synthetic Ruby
But it also displayed a moderately prominent orange-to-blue flash effect, small clusters of whitish devitrification products, and flattened gas ... «Jewelers Circular Keystone Online, sept 12»