Transparent glass ceramics

Ideally the product is a fine-grained ceramic containing interlocking crystals with sizes ranging from less than 10 nm in transparent glass-ceramics to several micrometres, with a residual, usually small, glass content. The behaviour of the material is largely determined by the choice of the cry-... [Pg.882]

The importance of transparent glass-ceramics doped by Cr as potential new materials for luminescent solar concentrators and tunable lasers is considerable It has been shown that Cr(III) exhibits exceptionally high quantum efficiency of luminescence in these materials as compared to glasses of the same compositions . Cr is also used as a probe for nucleation of and crystallization of cordierite into glass-ceramics . ... [Pg.65]

Reisfeld, R. Potential uses of Cr(III) doped transparent glass-ceramics in luminescent solar eoncentrators. Report Series Swedish Academy of Engineering Seienees in Finland (Helsinki) 40, part I (Proc. Advaneed Summer School on the Eleetronie Strueture of New Materials, Loviisa, August 1984) pp. 7-34, Helsinki 1985... [Pg.93]

PREPARATION AND CHARACTERIZATION OF NEODYMIUM -DOPED LZS TRANSPARENT GLASS-CERAMICS... [Pg.635]

Preparation and Characterization of Neodymium-Doped LZS Transparent Glass-Ceramics... [Pg.636]

A.S. Gouveia-Neto, E.B. da Costa, L.A. Bueno, S.J.L. Ribeiro, Intense red upconversion emission in infrared excited holmium-doped PbGe03-PbF2-CdF2 transparent glass ceramic, /. Lumin., 110, 79-84 (2004). [Pg.648]

As a result of carefully controlled thermal treatment, the initial glass is converted into a polycrystalline material in which the final properties depend on the nature of the precipitated phases, the final degree of crystallinity, the size of the crystallites, etc. The material is generally opaque, although translucent and even transparent glass-ceramics have been produced. The small size of the grains and the absence of porosity are characteristics of glass-ceramics. These result in excellent mechanical properties. This is explained in part by the action of the microcrystal-... [Pg.459]

TABLE 26.4 Base Compositions and Applications of Transparent Glass-Ceramics Based on Quartz Solid Solutions... [Pg.476]

Sanitized AG has developed Sanitized Silver, which uses a transparent glass ceramic carrier, requires a relatively low dose level, has good high-temperature resistance and is said not to affect the appearance of transparent plastics by dulling them. It has been granted FDA approval for food contact. Ciba Specialty Chemicals has some silver zeolite antimicrobial products those for thin or transparent articles are glass-based. [Pg.88]

Zerodur. Trade-name. A transparent glass-ceramic with very low thermal expansion. (Jenaer Glaswerk Schott u. Gen, Mainz). [Pg.360]

Transparent glass-ceramics of the Si02-Al203-Li20 system are used to produce color filter substrates for polysilicon thin-film-transistor liquid crystal displays for laptop color PCs. Nippon Electric Glass Co., Ltd., Japan,... [Pg.245]

Kiselev A., Reisfeld R., Greenberg E., Buch A.N., and Ish-Shalom M., "Spectroscopy of Cr(III) in P-quartz and Petalite-like Transparent Glass-Ceramics Ligand Field Strength of Chromium(III)," Chem. Phys. Lett., 105, 405-408 (1984). [Pg.347]

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