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US08178595B2 X-ray opaque barium-free glasses and uses thereof 有权
X射线不透明的无钡玻璃及其用途

X-ray opaque barium-free glasses and uses thereof
摘要:
Zirconium-containing BaO- and PbO-free X-ray opaque glasses having a refractive index nd of about 1.480 to about 1.517 and a high X-ray opacity with an aluminum equivalent thickness of at least about 180% are provided. Such glasses are based on a SiO2—B2O3—Cs2O—K2O—La2O3 system with additions of Al2O3, Li2O, Na2O and/or ZrO2. Such glasses may be used, in particular, as dental glasses or as optical glasses.
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