Fluoride glasses

Journal Article · Sun Jan 01 04:00:00 EST 1989 · Annual Review of Materials Science; (United States)

DOI:https://doi.org/10.1146/annurev.ms.19.080189.000321· OSTI ID:5051741

Parker, J M ^[1]

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1. School of Materials, Univ. of Sheffield, Elmfield, Northumberland Road, Sheffield S10 2TZ (GB)

Crystalline fluorides play a significant role in materials science, e.g. as lenses in infrared (IR) optics (CaF{sub 2}), laser hosts (LaF{sub 3}, CaF{sub 2}), fast ion conductors ({beta}PbF{sub 2}), and fluoride ion sensitive electrodes (LaF{sub 3}). Their melts, however, are very fluid, largely ionic, and unlikely candidates for glass formation. Nevertheless, many fluoride glass forming systems have been identified, with useful properties such as extended IR transmission, and the added advantage of ease of fabrication. The development of these materials, with special emphasis on optical fibers, is considered in this paper. Fluoride glasses are often referred to by acronyms based on the initial letters of the component cation chemical symbols, in a sequence based more on historical development than amounts present. Examples include ZBLAN(ZrF{sub 4}-BaF{sub 2}-LaF{sub 3}-A1F{sub 3}-NaF), CLAP (CdF{sub 2}-LiF-A1F{sub 3}-PbF{sub 2}), and BZnYbT (BaF{sub 2}-ZnF{sub 2}-YbF{sub 3}- ThF{sub 4}) glasses. ZBLAN glasses have been studied in most detail and are the basis of much of the discussion here.

• OSTI ID: 5051741
• Journal Information: Annual Review of Materials Science; (United States), Journal Name: Annual Review of Materials Science; (United States) Vol. 19; ISSN 0084-6600; ISSN ARMSC
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360603* -- Materials-- Properties
CHEMICAL COMPOSITION
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
FLUORIDES
FLUORINE COMPOUNDS
GLASS
HALIDES
HALOGEN COMPOUNDS
LASER MATERIALS
MATERIALS
OPTICAL PROPERTIES
PHYSICAL PROPERTIES