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Glazed ceramic ware

阅读:619发布:2023-09-10

专利汇可以提供Glazed ceramic ware专利检索,专利查询,专利分析的服务。并且Disclosed are compositions and methods for glazing low-expansion ceramic ware with an opaque, non-porous, acid-resistant, lowexpansion, semi-crystalline glass-ceramic glaze which can be subjected to relatively high firing temperatures (relatively high with respect to firing temperatures for low-expansion glazes) without the formation of ''''wash boarding'''' or other surface defects associated with overfiring. The compositions are lithium aluminosilicate frits containing sufficient ZrO2 so that zirconia is present as a crystalline phase in the fired glaze. The invention shows particular advantage for making glazes of adjustable and low expansion for thermal shock-resistant ceramic whiteware, for example, dinnerware, cookware and ceramic tile.,下面是Glazed ceramic ware专利的具体信息内容。

  • 2. The article of manufacture of claim 1, said ceramic body containing at least about 50 percent of cordierite mineral.
  • 3. As an article of manufacture, a ceramic body having a fired glaze frit coating thereon, said coating being a low expansion, non-porous, semicrystalline glass-ceramic glaze containing zirconia or zircon as one of the crystalline phases, said coating having a coefficient of expansion of less than 5 X 10 6/*C., and comprising prior to firing 100 parts frit; 0 to 15 parts ceramic clay (other than montmorillonite clay); 0 to 5 parts montmorillonite; 0 to 20 parts ceramic colorant; 0 to 20 parts ceramic opacifier; 0 to about 0.4 part electrolyte; and 0 to 90 parts water; said frit consisting essentially of:
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