Translucent or opaque colored glass-ceramic article providing a cooking surface and its use
    9.
    发明申请
    Translucent or opaque colored glass-ceramic article providing a cooking surface and its use 审中-公开
    提供烹饪表面的半透明或不透明有色玻璃陶瓷制品及其用途

    公开(公告)号:US20050252503A1

    公开(公告)日:2005-11-17

    申请号:US11124853

    申请日:2005-05-09

    摘要: The translucent or opaque colored glass-ceramic article provides a cooking surface and has an adjustable light transmission in a visible range under 15%, as measured for a 4 mm sample thickness; a flaw-free upper surface with an impact resistance of greater than 18 cm breaking height, as tested with a 200 g steel ball in a falling ball test; a temperature difference resistance of greater than 500° C.; a high crystallinity with keatite mixed crystals as principal crystal phase in an interior of the glass-ceramic article and with a residual glass phase fraction of less than 8% by weight; a glassy upper surface layer of from 0.5 to 2.5 μm thick, which is substantially free of high quartz mixed crystals and which inhibits chemical reactions, and a content of enriched ingredients in the residual glass phase in the interior of the glass-ceramic and in the glassy surface layer of ΣNa2O+K2O+CaO+SrO+BaO+F+refining agents of from 0.2 to 1.6% by weight.

    摘要翻译: 半透明或不透明的玻璃陶瓷制品提供烹饪表面,并且在可见光范围内具有可调节的光透射率,在15mm的样品厚度下测量; 一个无瑕疵的上表面,具有大于18厘米断裂高度的抗冲击强度,在落球试验中用200克钢球测试; 耐温差大于500℃。 在玻璃陶瓷制品的内部具有作为主要晶相的酮铁矿混合晶体的高结晶度,残余玻璃相分数小于8重量%; 玻璃状上表面层厚度为0.5至2.5μm,其基本上不含高石英混晶并且抑制化学反应,并且玻璃陶瓷内部残余玻璃相中富集成分的含量 SigmaNa 2 O + K 2 O + CaO + SrO + BaO + F +澄清剂的玻璃状表面层为0.2至1.6重量%。