摘要:
An optically detectable, floatable arsenic- and antimony-free, glazable lithium-aluminosilicate glass that can be prestressed and the glass ceramic converted therefrom are described. The glass or the glass ceramic has a composition (in % by weight based on oxide) of essentially SiO2 55-69, Al2O3 19-25, Li2O 3.2-5, Na2O 0-1.5, K2O 0-1.5, MgO 0-2.2, CaO 0-2.0, SrO 0-2.0, BaO 0-2.5, ZnO 0-
摘要翻译:描述了一种光学上可检测的,可漂浮的无砷和无锑,可预应力的玻璃化铝 - 铝硅酸盐玻璃以及由其转化的玻璃陶瓷。 玻璃或玻璃陶瓷具有基本上为SiO 2 55-69,Al 2 O 3 3/3的组成(以氧化物计的重量%) > 19-25,Li 2 O 3.2-5,Na 2 O 0-1.5,K 2 O 0-1.5,MgO 0- 2.2,CaO 0-2.0,SrO 0-2.0,BaO 0-2.5,ZnO 0- <1.5,TIO 2 1-3,ZrO 2 1-2.5,SnO 2 i> 0.1 <1,Sigma TIO 2 + ZrO 2 + SnO 2 2.5-5,P 2 u> O 3,0-3,Nd 2 O 3,0.01-0.6,CoO 0-0.005,F 0-1 B 2 O 3 0-2。
摘要:
An optically detectable, floatable arsenic- and antimony-free, glazable lithium-aluminosilicate glass that can be prestressed and the glass ceramic converted therefrom are described. The glass or the glass ceramic has a composition (in % by weight based on oxide) of essentially SiO2 55-69, Al2O3 19-25, Li2O 3.2-5, Na2O 0-1.5, K2O 0-1.5, MgO 0-2.2, CaO 0-2.0, SrO 0-2.0, BaO 0-2.5, ZnO 0-
摘要翻译:描述了一种光学上可检测的,可漂浮的无砷和无锑,可预应力的玻璃化铝 - 铝硅酸盐玻璃以及由其转化的玻璃陶瓷。 玻璃或玻璃陶瓷具有基本上为SiO 2 55-69,Al 2 O 3 19-25,Li 2 O 3.2-5,Na 2 O 0-1.5,K 2 O 0-1.5,MgO 0-2.2, CaO 0-2.0,SrO 0-2.0,BaO 0-2.5,ZnO 0- <1.5,TiO 2 1-3,ZrO 2 1-2.5,SnO 2 0.1- <1,&lt; TiO 2 + ZrO 2 + SnO 2 2.5-5,P 2 O 5 -3,Nd2O3 0.01-0.6,CoO 0-0.005,F 0-1,B2O3 0-2。
摘要:
The invention relates to a glass and a glass-ceramic comprising beta-quartz and/or keatite solid solutions, and to a process for their production, and to their use as substrate material for coating. Glass-ceramic comprising beta-quartz and/or keatite solid solutions with a surface roughness without polishing of Ra 85% for a 4 mm thickness, and a composition in % by weight, based on the total composition, containing: Li2O3.0-5.5 Na2O0-2.5 K2O0-2.0 Σ Na2O + K2O0.5-3.0 Σ MgO + ZnO
摘要:
The invention relates to a glass powder, where at least one oxidizing agent or one reducing agent is added to the glass powder. The glass powder is preferably used as dental glass powder.
摘要:
An optically detectable, floatable arsenic- and antimony-free, glazable lithium-aluminosilicate glass that can be prestressed and the glass ceramic converted therefrom are described. The glass or the glass ceramic has a composition (in % by weight based on oxide) of essentially SiO2 55-69, Al2O3 19-25, Li2O 3.2-5, Na2O 0-1.5, K2O 0-1.5, MgO 0-2.2, CaO 0-2.0, SrO 0-2.0, BaO 0-2.5, ZnO 0-
摘要翻译:描述了一种光学上可检测的,可漂浮的无砷和无锑,可预应力的玻璃化铝 - 铝硅酸盐玻璃以及由其转化的玻璃陶瓷。 玻璃或玻璃陶瓷具有基本上为SiO 2 55-69,Al 2 O 3 19-25,Li 2 O 3.2-5,Na 2 O 0-1.5,K 2 O 0-1.5,MgO 0-2.2, CaO 0-2.0,SrO 0-2.0,BaO 0-2.5,ZnO 0- <1.5,TiO 2 1-3,ZrO 2 1-2.5,0.1 <1,SigmaTiO 2 + ZrO 2 + SnO 2 2.5-5,P 2 O 5 O-3, Nd2O3 0.01-0.6,CoO 0-0.005,F 0-1,B2O3 0-2。
摘要:
The invention relates to a glass and a glass-ceramic comprising beta-quartz and/or keatite solid solutions, and to a process for their production, and to their use as substrate material for coating. Glass-ceramic comprising beta-quartz and/or keatite solid solutions with a surface roughness without polishing of Ra 85% for a 4 mm thickness, and a composition in % by weight, based on the total composition, containing: Li2O 3.0-5.5 Na2O 0-2.5 K2O 0-2.0 &Sgr; Na2O + K2O 0.5-3.0 &Sgr; MgO + ZnO
摘要:
An improved filling material for a composite solder glass based on doped PbTiO3 is disclosed, in which up to 35 atom % of the Pb atoms and up to 35% Ti atoms are replaced by Mg and/or Ca and a portion of O atoms in the doped PbTiO3 is replaced with halogen atoms, preferably fluorine atoms. This filling material and composite solder glasses containing it are useful for hermetic sealing, soldering and/or coating of individual components made of glass material, glass-ceramic material, ceramic material and metal in the manufacturing of components and devices for electrical engineering and electronics, for hermetic encapsulation of electronic components, vacuum-tight seals or closures of display tubes or for display devices. They are also useful for coating and bonding of special glasses. The filling material can be made by reaction sintering of a powder mixture at temperatures of 800° C. to 1250° C.