摘要:
The zirconium-containing and lithium-containing borosilicate glasses have a higher resistance to chemical attack and have the following composition (in % by weight on an oxide basis): SiO2, 71 to
摘要翻译:含锆和含锂的硼硅酸盐玻璃具有较高的耐化学腐蚀性,并且具有以下组成(以氧化物为基准的重量%):SiO 2,71至<73%; B 2 O 3,7〜10% Al2O3,6〜9% Li2O,0.5〜2% Na2O,0〜10% K2O,0〜10% MgO,0〜2% CaO,0〜3%; 0〜3%; BaO,0〜3%; ZnO,0〜3%; ZrO 2,0.8〜3% CeO 2,0〜1%,以及适合于精炼量的精制剂,条件是Li 2 O + Na 2 O + K 2 O的总量为0.5〜10.5%,条件是 MgO + CaO + SrO + BaO + ZnO为0〜3%。 这些具有5.2〜5.7×10 -6 / K的热膨胀系数α20/ 300的硼硅酸盐玻璃特别适用于密封Fe-Co-Ni合金的玻璃。
摘要:
A polarizing glass comprising geometrically anisotropic particles dispersed in an oriented manner in at least the surface of a glass base body. The glass base body is denoted by the weight percentages of 50-65 percent SiO2, 15-22 percent B2O3, 0-4 percent Al2O3, 2-8 percent ZrO2, 6 percent
摘要:
Provided are glass compositions uniquely applicable for the preparation of ultrafine fibers for filtration and separation applications. The glasses meet all physical and chemical criteria, including that for biodissolution rate.
摘要:
The principal object of the present invention is organic lens molds, constituted wholly or in part of at least one specific inorganic glass, advantageously strengthened by a chemical tempering or a thermal tempering. Said glass has the following composition, expressed in percentages by weight: SiO2 56-66, Al2O3 2.5-10, B2O3 0.5-7, Li2O 0-3, Na2O 8-15, K2O 3-12, with Li2O+Na2O+K2O 12-20, ZnO 2-12, MgO 0-3, TiO2 0-0.5, ZrO2 1-9, CaO 0-1, BaO 0-2, SrO 0-2, with MgO+CaO+SrO+BaO 0-5, Cl 0-0.5, As2O3+sb2O3 0-1. The invention also deals with novel inorganic glasses which have the above composition with a single exception relative to the Al2O3 content: Al2O3 2.5-4.
摘要翻译:本发明的主要目的是有机透镜模具,全部或部分由至少一种特定的无机玻璃构成,有利于通过化学回火或热回火加强。 所述玻璃具有以重量百分数表示的以下组成:SiO 2 56-66,Al 2 O 3 2.5-10,B 2 O 3 0.5-7,Li 2 O 0-3,Na 2 O 8-15,K 2 O 3-12,Li 2 O + Na 2 O + K 2 O 12 -20,ZnO 2-12,MgO 0-3,TiO 2 0-0.5,ZrO 2 1-9,CaO 0-1,BaO 0-2,SrO 0-2,MgO + CaO + SrO + BaO 0-5, Cl 0-0.5,As2O3 + sb2O3 0-1。 本发明还涉及具有上述组成的新型无机玻璃,相对于Al 2 O 3含量为单一例外:Al 2 O 3 2.5-4。
摘要:
An object of the invention is to provide a low temperature fired porcelain having an optimum firing temperature not higher than 1000° C. a reduced dielectric constant ∈ r, an improved quality coefficient and a low incidence of cracks. The invention provides a low temperature-fired porcelain comprising a barium component in a calculated amount of 10 to 64 weight percent when calculated as BaO, a silicon component in a calculated amount of 20 to 80 weight percent when calculated as SiO2, an aluminum component in a calculated amount of 0.1 to 20 weight percent when calculated as Al2O3, a boron component in a calculated amount of 0.3 to 1.0 weight percent when calculated as B2O3 a zinc component in a calculated amount of 0.5 to 20 weight percent when calculated as ZnO, and a bismuth component in a calculated amount of not higher than 20 weight percent when calculated as Bi2O3.
摘要翻译:本发明的目的是提供一种具有不高于1000℃的最佳烧成温度的低温烧制瓷,降低的介电常数εr,改善的质量系数和低的裂纹发生率。 本发明提供一种低温焙烧瓷,其计算量为10〜64重量%的钡成分,以BaO计,计算量为20〜80重量%的硅成分,以SiO 2计,铝成分 当以Al 2 O 3计算时,计算量为0.1〜20重量%,计算量为0.3〜1.0重量%时的硼成分,当以ZnO计算为0.5〜20重量%的计算量的B 2 O 3为锌成分时,以及 当以Bi 2 O 3计算时,计算量不超过20重量%的铋组分。
摘要:
The invention relates to an alkali-free aluminoboro-silicate glass which has the following composition (in % by weight, based on oxide): SiO2 >60-65; B2O3 6.5-9.5; Al2O3 14-21; MgO 1-8; CaO 1-6; SrO 1-9; BaO 0.1-3.5; with MgO+CaO+SrO+BaO 8-16; ZrO2 0.1-1.5; SnO2 0.1-1; TiO2 0.1-1; CeO2 0.01-1. The glass is particularly suitable for use as a substrate glass in display technology.
摘要翻译:本发明涉及一种无碱铝硼硅酸盐玻璃,其具有以下组成(以重量%计,基于氧化物):SiO 2> 60-65; B2O3 6.5-9.5; Al2O3 14-21; MgO 1-8; CaO 1-6; SrO 1-9; BaO 0.1-3.5; MgO + CaO + SrO + BaO 8-16; ZrO2 0.1-1.5; SnO2 0.1-1; TiO2 0.1-1; CeO2 0.01-1。 该玻璃特别适用于显示技术中的基板玻璃。