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    • 9. 发明授权
    • Transparent or translucent inorganic material with high transmission in
the 2700-3300 nm wavelength range
    • 透明或半透明的无机材料,在2700-3300nm波长范围内具有高透射率
    • US5446008A
    • 1995-08-29
    • US165877
    • 1993-12-14
    • Georg KrollaPaul KisslPeter NassKurt Schaupert
    • Georg KrollaPaul KisslPeter NassKurt Schaupert
    • F24C7/04A47J36/02C03C3/085C03C3/097C03C3/11C03C4/10C03C10/00C03C10/04C03C10/14F24C15/10F26B3/30C03C3/083
    • C03C10/0027
    • A transparent or translucent inorganic material, especially a glass-ceramic and/or composite material, is provided with a low average thermal longitudinal expansion coefficient, .alpha., of from -1.times.10.sup.-6 K.sup.-1 to +2.times.10.sup.-6 K.sup.-1 in the temperature range of -50.degree.-700.degree. C., with the following composition (in weight percent):Li.sub.2 O, 2.5-6.0; Na.sub.2 O, 0-4.0; K.sub.2 O, 0-4.0; Na.sub.2 O+K.sub.2 O, 0.2-4.0; MgO, 0-3.0; ZnO, 0-3.0; BaO, 0-3.5; CaO, 0-1.0; SrO, 0-1.0; Al.sub.2 O.sub.3, 18-28; SiO.sub.2, 50-70; TiO.sub.2, 1.0-7.0; ZrO.sub.2, 0-3.5; TiO.sub.2 +ZrO.sub.2, 1.0-7.0; and P.sub.2 O.sub.5, 0-8.0,optionally with coloring components (in weight percent):V.sub.2 O.sub.5, 0-2.0; Cr.sub.2 O.sub.3, 0-2.0; MnO, 0-2.0; Fe.sub.2 O.sub.3, 0-2.0; CoO, 0-2.0; and NiO, 0-2.0,optionally, conventional refining agents, such as As.sub.2 O.sub.3, Sb.sub.2 O.sub.3, NaCl, and Ce.sub.2 O.sub.3, and optionally with high quartz (h-quartz) and/or keatite mixed crystals as the essential crystalline phase. The material exhibits a settable transmission and is suitable, in particular, for the production of plates, pipes, and molded articles, wherein the inorganic material has a water content of less than 0.03 mol/l.
    • 透明或半透明的无机材料,特别是玻璃 - 陶瓷和/或复合材料,在温度范围内具有-1x10-6K-1至+ 2x10-6K-1的低平均热纵向膨胀系数α -50℃-700℃,具有以下组成(重量百分比):Li 2 O,2.5-6.0; Na2O,0-4.0; K2O,0-4.0; Na2O + K2O,0.2-4.0; MgO,0-3.0; ZnO,0-3.0; BaO,0-3.5; CaO,0-1.0; SrO,0-1.0; Al2O3,18-28; SiO2,50-70; TiO2,1.0-7.0; ZrO 2,0-3.5; TiO2 + ZrO2,1.0-7.0; 和P 2 O 5,0-8.0,任选地具有着色组分(重量百分比):V2O5,0-2.0; Cr2O3,0-2.0; MnO,0-2.0; Fe2O3,0-2.0; CoO,0-2.0; 和NiO,0-2.0,任选的常规精炼剂,例如As2O3,Sb2O3,NaCl和Ce2O3,以及任选的高石英(h-石英)和/或酮铁矿混合晶体作为必需结晶相。 该材料具有可设定的透射性,特别适用于制造板,管和模制品,其中无机材料的水含量低于0.03mol / l。