由玻璃和陶瓷组成的混合物可制成具有宽光谱透射的材料,透射波长从近紫外到毫米波,甚至微波。这种材料比玻璃有更高的机械强度。硅酸盐陶瓷的透射从紫外的0.16μm到红外的4μm。如果引入碱或硷土氧化物,紫外透射范围变小,而引入过渡金属可在可见光谱范围产生透射峰。玻璃陶瓷中的OH在2.5～3.0波长的吸收远低于所有玻璃(后者在此范围截止)。玻璃陶瓷用一系列玻璃成分控制结晶的方法制造。混合物被熔融、成形和退火。材料内 A mixture of glass and ceramic can be made into a material that has a wide spectral transmission with transmission wavelengths ranging from near UV to millimeter waves and even microwaves. This material has a higher mechanical strength than glass. The transmittance of silicate ceramics ranges from 0.16 μm for UV to 4 μm for IR. If an alkali or alkaline earth oxide is introduced, the UV transmission range becomes smaller, and the introduction of the transition metal produces a transmission peak in the visible spectrum. The absorption of OH in glass ceramics at 2.5 to 3.0 wavelengths is much lower than that of all glasses, the latter in this range. Glass ceramics are manufactured using a series of glass compositions that control the crystallization. The mixture is melted, shaped and annealed. Inside the material