Unleaded transparent vitreous ceramic compositions

Details Unleaded transparent vitreous ceramic compositions Unleaded transparent vitreous ceramic compositions

1997-01-16

1999-11-02

Group, Karl

Compositions: ceramic

Ceramic compositions

Glass compositions, compositions containing glass other than...

501 14, 501 18, 501 21, 501 66, 501 67, C03C 802, C03C 814, C03C 820

Patent

active

059769998

ABSTRACT:
A composition which represents a new class of unleaded transparent vitreous ceramic which is described as an `Advanced or Combined Intermediate-Oxide Alkali Borosilicate. The composition comprises in combination a specially developed alkali borosilicate and a major addition selected from combinations of the group of traditionally accepted opacifiers, consisting of Zirconium, Tin, and Titanium, the said elements being present in said combination in amounts 0.5 to 43.9 wt % in terms of the Oxide form. The major addition will consist of at least two of said elements. The composition may include minor additions (.ltoreq.10 wt %) of any other element or elements which do not cause loss of transparency.

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patent: 5292690 (1994-03-01), Kawachi et al.
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Dictionary of Ceramic Science & Engineering Loran O'Bannon 1984 (No Month) pp. 54, 94, 117, 122 & 270.

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