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Monday, February 3, 2020 | History

2 edition of Surface properties of silicate glasses. found in the catalog.

Surface properties of silicate glasses.

KoraМЃnyi, GyoМ€rgy.

Surface properties of silicate glasses.

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Published by Akadámiai Kiadó, Pub. House of the Hungarian Academy of Sciences in Budapest .
Written in English

    Subjects:
  • Glass.,
  • Silicates.,
  • Surface chemistry.

  • Edition Notes

    Statement[Translated by Ferenc Tamás]
    Classifications
    LC ClassificationsTA450 .K6513
    The Physical Object
    Pagination104 p.
    Number of Pages104
    ID Numbers
    Open LibraryOL5762173M
    LC Control Number71208050

    Knoche, D. This is consistent with the fact that LPS nanophase crystallized in the latter case while remaining amorphous after RTT procedure. It might be caused by the effect of small size of nanospheres of LPS:Ce and different refractive index of surrounding medium Metzer et al. Taking two corresponding glasses of the same basicity, or proportion of silicic acid to the bases present, those formulae which have the greater complexity of bases produce the more fusible glasses.

    Meissnerova, O. Hoskova; Sb. Clare, L. Such glasses should be " de-graded " and re-melted in order more thoroughly to diffuse and distribute the denser portions throughout the mass. To a lesser extent, similar increase is observed also in insulating Gd2O3:Eu nanocrystals Mercier et al.

    Clare, L. The nanocomposites are transparent when silica matrix is amorphous, see Fig. In often investigated composition areas the large number of data does allow a higher prediction accuracy than measurements within one single laboratory permit. Clay- water relations Clay materials contain water in several forms. Quartz glassware is a highly silicious glass. Fowkes and T.


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Surface properties of silicate glasses. by KoraМЃnyi, GyoМ€rgy. Download PDF Ebook

During the years, ion-exchange processes were developed and industrialized for numerous applications, such as chemical strengthening of glass articles [ 23 ], gradient index GRIN lenses [ 45 ] and planar waveguides [ 6 ]; the ion-exchange properties of glass have Surface properties of silicate glasses.

book also used to explain the functioning of the pH glass electrode and the chemical durability of glass [ 7 ]. The characterization by XRD showed that they remain amorphous after such a treatment. The specific heat of glass increases slightly the temperature is increased up to the transformation range.

After the ion-exchange process is completed, the articles are rinsed with water and dried, being immediately ready for successive use. Further details are summarized in statistics textbooks and at Principles of Statistical Glass Modeling. But the development of true bulk single crystal scintillators started only at the end of s when Tl-doped NaI and CsI and CdWO4 crystals were reported to be applicable for scintillation detection Weber, The surplus of SiO2 leads to the phase separation of Y2Si2O7 which forms spherical particles in order to minimize the surface energy like the oil droplets in the water.

Therefore, it is unlikely to obtain inaccurate results through unintentionally entering a glass composition for which the model is not valid for.

Silicate glass

The scientifically founded development of new products and technical processes has traditionally been of vital importance at Schott and has always been per formed on a scale determined by the prospects for application of our special glasses. The latter is bound to exchangeable cations or directly to the clay mineral surfaces.

London, A, Regular round Y2Si2O7 particles of tens of nanometers size embedded in the silica matrix are clearly observed. In less demanding applications the suitably doped glasses are also used. Bouquet and S. RTT procedure indicates the possibility to obtain transparent bulk optical elements with scintillating REPS:Ce nanophase, but more experimental work has to be done to achieve good transparency and crack-free samples.

The Chemical And Physical Properties Of Glass. Continued

Brearley; Geochim. The latter three samples were made by an analogous sol-gel route, single crystal was grown by Czochralski method Feng et al. Prokopowicz-Prigogine and W. The former is considerably greater than either of the latter, indicating that montmorillonite has a prominent plastic nature.

In contrast, one single experimental investigation may take several hours or days, including high personal and equipment expenses, and the measurement accuracy still needs to be confirmed statistically afterwards by comparing results with those of other investigators.

Surface Determined Properties of Silicate Glasses

Under these conditions of cooling, glass is apt to " fly," or collapse and fall to pieces, Surface properties of silicate glasses. book to the outer portions giving way under the great strain. Faraday Soc. Polymere, vol. Several different methods were reported for the preparation of powder silicate phosphors which were considered for another applications like FED or cathodoluminescence screens Holloway et al.

The layers of [Si2O7] groups are organized this way:Si atom of the [Si2O7] group shares one oxygen atom from the [LuO6] layer above and two from the one below in the c-direction, the Si atom from the opposite side is in a reverse situation Yan et al.

Koide, K. PL decay shows nanosecond decay time of 34 ns Fig. Part 2. For this diagonal impact abrasion test, 3kg of sand with a 0.

Left image SEM shows the Surface properties of silicate glasses. book aspect of sample while right image TEM shows the formation of nanometres-sized crystals.

Stein, J. SpectraSolve software package Ames Photonics was used to apply deconvolution procedures to extract true decay times. Dingwell, M. Jpn [email protected]{osti_, title = {Handbook of glass properties}, author = {Bansal, N.P.

and Doremus, R.H.}, abstractNote = {This volume is a compilation of data on the properties of glasses. The authors examine and correlate the data on the properties of multicomponent commercial silicate glasses, vitreous silica, and binary and ternary laboratory glasses.

Note: Citations are based on reference standards. However, formatting rules can vary widely between applications and fields of interest or study. The specific requirements or preferences of your reviewing publisher, classroom teacher, institution or organization should be applied.

Mechanical properties. Density: The surface of glass is affected if it is exposed for a long time to alkalis (and ammonia gases in damp air) in conjunction with high temperatures. Float glass will also react to compounds that contain hydrofluoric acid under normal conditions.

These .Dec 07,  · Analysis and development of glasses with desired physical properties based on pdf composition pdf property statistics. This website promotes the statistical analysis and calculation (modeling) of physical properties of silicate, borosilicate and other specialty glasses based on global glass databases for facilitating process modeling, process control, and development.Taking silicate glasses as a typical case, the glass structure is defined by SiO 4 tetrahedral units which are connected by sharing one corner oxygen ion.

[2,3] This structural unit is very similar to that occurring in corresponding silicate crystals; i. e. the short-range structure of .systems (see Patterson, ).

The partitioning ebook these isotopes inside the magmas and silicate melts observed at the Earth surface gives key constrains on geochemical and geophysical processes occurring in the deep Earth.

Lead silicate glasses are interesting Cited by: