Tellurite glass

Details Tellurite glass Tellurite glass

1986-06-30

1987-03-24

Bell, Mark L.

Compositions: ceramic

Ceramic compositions

Glass compositions, compositions containing glass other than...

501900, C03C 312

Patent

active

046525360

ABSTRACT:
Tellurite glass is disclosed, consisting essentially of 60 to 85 mol % of TeO.sub.2, up to 25 mol % of Li.sub.2 O, up to 35 mol % of Na.sub.2 O, up to 25 mol % of K.sub.2 O, up to 25 mol % of Rb.sub.2 O, up to 15 mol % of Cs.sub.2 O, up to 10 mol % of MgO, up to 5 mol % of CaO, up to 5 mol % of SrO, 1 to 30 mol % of BaO, up to 30 mol % of ZnO, up to 30 mol % of PbO, and up to 5 mol % in total of La.sub.2 O.sub.3, ZrO.sub.2, TiO.sub.2, Nb.sub.2 O.sub.5, Ta.sub.2 O.sub.5 and WO.sub.3 with the total content of K.sub.2 O, Rb.sub.2 O and Cs.sub.2 O being from 1 to 25 mol %, and the total content of ZnO and PbO being from 1 to 30 mol %. The tellurite glass has a reduced light path difference with temperature difference and an increased figure of merit.

REFERENCES:
patent: 2763559 (1956-09-01), Weissenberg et al.
patent: 3291620 (1966-12-01), Eustropjeu et al.
patent: 3661600 (1972-05-01), Izumitani et al.
patent: 3690908 (1972-09-01), Greco et al.
patent: 3845406 (1974-10-01), Cooley
patent: 3855545 (1974-12-01), Cooley
patent: 4312660 (1982-01-01), Blair et al.

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