Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...

Articles Figures Tables About

Glass, chalcogenide

The unique features of chalcogenide glasses (Chap. 6), such as quasi-stability, photoconductivity, infrared transparency, non-linear optical properties, and ionic [Pg.24]

Similar stmctural units, but with higher fractions of E have been indentified by Si NMR in amorphous hydrogen-containing sulphur chalcogenide films deposited by plasma-enhanced chemical vapour deposition from molecular H2S and SiH4 (Shibao et al. 1994). [Pg.238]

Compounds such as Li2S and Na2S act as network modifiers in SiS2 glasses, creating non-bridging chalcogen atoms which can be detected by Si NMR as a [Pg.238]

The Si chemical shifts of glassy and crystalline chalcogenide compounds are collected in Table 4.5. [Pg.239]

The term chalcogenide refers to the elements in the VIA column of the periodic table, i.e., O, S, Se, Te, and Po. Since the isotopes of polonium are radioactive, no significant studies have been reported using polonium in glasses. If we consider the other four chalcogenides, we [Pg.106]

Two models exist for prediction of the number of bonds between different elements. If a glass contains two elements, A and B, we might find bonds between two A atoms, between two B atoms, or between one A and one B atom. If the probability of each type of bond is given by the statistical probability based on the ratio of each type of atom in the composition, we term the structure a random covalent network, or RCN. On the other hand, if we assume that A-B bonds are always favored [Pg.107]

Uhlmann and NJ. Kiiedel. Glass Science and Technology, Vol. I (Glass forming systems). Academic Piess (1983) TP848 G56. [Pg.316]

La Course, H.J. Stephens. The Physics of Non-crystalline Solid. Taylor and Francis, London (1992). [Pg.316]

Cable and J.M. Paiker. High Performance Glasses. Blackie, Glasgow (1992). TP862H54. J.G. Simmons. Contemp. Phys., 11, 21 (1970). [Pg.316]

Selenium chalcogenide glasses exhibit good infrared transmission properties. These are used as lenses (ZnSe, CdSe) in laser apphcations and have potential applications in fiber optics (qv) and in data storage and retrieval. [Pg.337]

The main problem in developing fibers for IR transmission is that silica glass is not transparent in that area of the spectrum. Suitable materials include the selenides and other chalcogenide glasses (particularly for the CO2 laser light source) and the fluorohafnate glasses. In addition, materials, such as zirconium fluo-... [Pg.423]

Tanaka K (2001) Chalcogenide Glasses. In Encyclopedia of Materials Science and Technology, Elsevier Science Ltd Oxford ISBN 0-08-0431526, pp. 1123-1131 Ovshinsky SR (1968) Reversible Electrical Switching Phenomena in Disordered Stmctures. Phys Rev Lett 21 1450-1453... [Pg.54]

Compared to the corresponding polycrystalline metal chalcogenides, chalcogenide glasses exhibit better chemical stability in acidic and redox media and often... [Pg.337]

Jasinski R, Trachtenberg I (1973) Evaluation of the ferric ion sensitive chalcogenide glass electrode. J Electrochem Soc 120 1169-1174... [Pg.347]

Jasinski R, Trachtenberg I, Rice G (1974) A chalcogenide glass electrode sensitive to cupric ions. J Electrochem Soc 121 363-370... [Pg.347]

Vlasov YG, Bychkov EA, Legin AV (1994) Chalcogenide glass chemical sensors Research and analytical applications. Talanta 41 1059-1063... [Pg.347]

VassUev V, Karadashka I, Parvanov S (2008) New chalcogenide glasses in the AgaTe-As2Se3-CdTe system. J Phys Chem Solids 69 1835-1840... [Pg.347]

Vassilev V, Tomova K, Parvanova V, Parvanov S (2007) New chalcogenide glasses in the GeSe2-Sb2Se3-PbSe system. Mater Chem Phys 103 312-317... [Pg.348]

Vlasov YG, Bychkov EA (1989) Sodium ion-selective chalcogenide glass electrodes. Anal Lett 22 1125-1144... [Pg.348]

Legin AV, Vlasov YG, Rudnitskaya AM, Bychkov EA (1996) Cross-sensitivity of chalcogenide glass sensors in solutions of heavy metal ions. Sens Actuators B 34 456 61 De Marco R, Shackleton J (1999) Cahbration of the Hg chalcogenide glass membrane ion-selective electrode in seawater media. Talanta 49 385-391... [Pg.348]

De Marco R, Mackey DJ (2000) Calibration of a chalcogenide glass membrane ion-selective electrode for the determination of free Fe in seawater I. Measurements in UV photooxidised seawater. Mar Chem 68 283-294 Van den Berg CMG (2000) Mar Chem 71 331-332... [Pg.348]

A direct potentiometric measurement of N02 in air appeared possible by means of a properly activated Fe-chalcogenide glass electrode158 with the approximate composition SegoGe Sbu doped with 1.7 -2% of Fe it yields a positive potential shift when equilibrated with N02 in the presence of air, being insensitive to NO, S02, CO and CH4. [Pg.366]

Le Sergent C., Chalcogenide glass optical fibers, Proc.SPIE 799 (1987), pp.18-24. [Pg.75]

See other pages where Glass, chalcogenide is mentioned: [Pg.288]    [Pg.313]    [Pg.330]    [Pg.330]    [Pg.332]    [Pg.332]    [Pg.333]    [Pg.333]    [Pg.335]    [Pg.335]    [Pg.315]    [Pg.401]    [Pg.70]    [Pg.24]    [Pg.25]    [Pg.25]    [Pg.336]    [Pg.337]    [Pg.337]    [Pg.337]    [Pg.338]    [Pg.338]    [Pg.338]    [Pg.339]    [Pg.334]    [Pg.137]    [Pg.17]    [Pg.96]    [Pg.315]   
See also in sourсe #XX -- [ Pg.24 , Pg.337 , Pg.338 ]

See also in sourсe #XX -- [ Pg.349 ]

See also in sourсe #XX -- [ Pg.6 , Pg.36 ]

See also in sourсe #XX -- [ Pg.102 , Pg.316 ]

See also in sourсe #XX -- [ Pg.14 , Pg.26 , Pg.44 , Pg.45 , Pg.55 , Pg.63 , Pg.355 , Pg.440 , Pg.674 , Pg.676 , Pg.680 , Pg.681 ]

See also in sourсe #XX -- [ Pg.2 , Pg.3 , Pg.3 , Pg.17 ]

See also in sourсe #XX -- [ Pg.2 , Pg.3 , Pg.3 , Pg.17 , Pg.18 ]

See also in sourсe #XX -- [ Pg.317 ]

See also in sourсe #XX -- [ Pg.346 ]

See also in sourсe #XX -- [ Pg.568 , Pg.571 ]

See also in sourсe #XX -- [ Pg.568 , Pg.571 ]

See also in sourсe #XX -- [ Pg.436 ]

See also in sourсe #XX -- [ Pg.411 , Pg.425 , Pg.426 , Pg.434 , Pg.436 ]



SEARCH



Chalcogenide

Chalcogenides

Glasse chalcogenide

© 2024 chempedia.info