Tantalum containing glasses and glass ceramics
    1.
    发明授权
    Tantalum containing glasses and glass ceramics 失效
    含钽的玻璃和玻璃陶瓷

    公开(公告)号:US06268303B1

    公开(公告)日:2001-07-31

    申请号:US09321035

    申请日:1999-05-27

    IPC分类号: C03C3097

    摘要: The present invention relates to a glass matrix which includes 4-70 wt. % SiO2, 0.5-20 wt. % Al2O3, 0-20 wt. % R2O, 0-30 wt. % R′O, 8-85 wt. % Ta2O5, 0-40 wt. % Nb2O5, and 0.01-1.0 wt. % R″2O3, where R2O+R″O is between about 2-35 wt. %, Ta2O5+Nb2O5 is between about 8-85 wt. %, R is selected from a group consisting of Li, Na, K, and combinations thereof, R′ is selected from a group consisting of Ba, Sr, Ca, Mg, Zn, Pb, and combinations thereof, and R″ is a rare earth element. The present invention also relates to use of the glass matrix in forming optic waveguides such as optic amplifiers. The present invention further relates to a transparent glass ceramic that contains pyrochlore, perovskite, or a combination thereof as its major crystal phase, and includes 4-40 wt. % SiO2, 1-15 wt. % Al2O3, 0-20 wt. % K2O, 0-12 wt. % Na2O, 0-5 wt. % Li2O, 8-85 wt. % Ta2O5, and 0-45 wt. % Nb2O5, wherein Ta2O5+Nb2O5 is at least about 20 wt. % and (K2O+Li2O+Na2O) is between about 5-20 wt. %. Also disclosed is a method of making the glass ceramic and use of the glass ceramic as a ferro-electric component in electro-optical devices or as a filtering core in an optical filtering device.

    摘要翻译: 本发明涉及一种玻璃基质,其包含4-70wt。 %SiO 2,0.5-20重量% %Al2O3,0-20wt。 %R 2 O,0-30重量% %R'O,8-85wt。 %Ta2O5,0-40wt。 %Nb2O5和0.01-1.0wt。 %R“2 O 3,其中R 20 + R”O为约2-35重量% %,Ta 2 O 5 + Nb 2 O 5为约8-85wt。 %,R选自Li,Na,K及其组合,R'选自Ba,Sr,Ca,Mg,Zn,Pb及其组合,R“为 稀土元素。 本发明还涉及玻璃基质在诸如光放大器之类的光波导中的应用。 本发明还涉及含有烧绿石,钙钛矿或其组合作为其主要结晶相的透明玻璃陶瓷,并且包括4-40重量% %SiO 2,1-15wt。 %Al2O3,0-20wt。 %K2O,0-12wt。 %Na 2 O,0-5wt。 %Li 2 O,8-85wt。 %Ta2O5和0-45wt。 %Nb 2 O 5,其中Ta 2 O 5 + Nb 2 O 5为至少约20wt。 %和(K 2 O + Li 2 O + Na 2 O)为约5-20wt。 %。 还公开了一种制造玻璃陶瓷的方法,并且将玻璃陶瓷用作电光器件中的铁电部件或光过滤装置中的滤芯。