摘要:
The present invention relates to a glass substrate comprising at least one ion pattern obtained by a treatment for exchanging the alkali metal ions of the glass with silver ions originating from an outside source, said substrate being formed from a glass having a specific composition and said ion pattern having a variation in the refractive index greater than or equal to 0.03, a depth greater than or equal to 100 μm and a light transmission coefficient at 410 nm (TL410) greater than or equal to 60%.
摘要:
The invention relates to a glass yarn capable of being obtained by a method consisting of mechanically drawing molten glass threads flowing from orifices disposed at the base of a die, of which the chemical composition is substantially free from boron oxide and comprises the following constituents within the limits defined hereinafter expressed in percentages by weight: SiO240 to 50 Al2O318 to 28 CaO4 to 15 MgO0 to 6 Na2O10 to 14 Na2O + K2O + Li2O13 to 20 It also relates to composites containing such yarns.
摘要翻译:本发明涉及一种能够通过以下方法获得的玻璃丝,所述方法包括机械抽出设置在模具底部的孔口流动的熔融玻璃丝,其中化学组成基本上不含氧化硼,并且包括以下组分 以下以重量百分比表示的极限:SiO 2 40至50 Al 2 O 3 18至28 CaO 4至15 MgO 0至6 Na 2 O 10至14 Na 2 O + K 2 O + Li 2 O 13至20还涉及含有这种纱线的复合材料。
摘要:
The present invention relates to a chemically resistant glass composition for the production of reinforcing strands which comprises the following constituents within the limits defined below, expressed in mol %: SiO2 67-72%; ZrO2 5-9.5%, preferably ≧7.5%; R2O (R=Na, K and Li) 11-17%; Li2O 0-5.5%; K2O 0-5.5%; Na2O
摘要翻译:本发明涉及一种用于生产增强线材的耐化学腐蚀性玻璃组合物,其包含下列限定的以下成分,以摩尔%表示:SiO 2 67-72%; ZrO 2为5-9.5%,优选为≥7.5%。 R2O(R = Na,K和Li)11-17%; Li2O 0-5.5%; K2O 0-5.5%; Na2O <10%; 和CaO 3-9%,该组合物还含有少于1%的杂质(Al 2 O 3,Fe 2 O 3,Cr 2 O 3,TiO 2,MgO,SrO,BaO和P 2 O 5)并且不含F。它还涉及由该组合物获得的玻璃丝 以及基于含有这种链的有机或无机材料的复合材料。
摘要:
The invention relates to a glass yarn capable of being obtained by a method consisting of mechanically drawing molten glass threads flowing from orifices disposed at the base of a die, of which the chemical composition is substantially free from boron oxide and comprises the following constituents within the limits defined hereinafter expressed in percentages by weight: SiO240 to 50 Al2O318 to 28 CaO4 to 15 MgO0 to 6 Na2O10 to 14 Na2O + K2O + Li2O13 to 20 It also relates to composites containing such yarns.
摘要翻译:本发明涉及一种能够通过以下方法获得的玻璃丝,所述方法包括机械抽出设置在模具底部的孔口流动的熔融玻璃丝,其中化学组成基本上不含氧化硼,并且包括以下组分 以下以重量百分比表示的极限:SiO 2 40至50 Al 2 O 3 18至28 CaO 4至15 MgO 0至6 Na 2 O 10至14 Na 2 O + K 2 O + Li 2 O 13至20还涉及含有这种纱线的复合材料。
摘要:
The invention relates to the field of display screens, especially plasma screens.One subject of the invention is a glass composition which comprises the constituents below in the following weight proportions: SiO2 55-75%; Al2O3 1-5%; ZrO2 1-5%; Na2O 1-5.5%; K2O 1-9%, preferably 1-8.5%, and advantageously 1-7.5%; CaO 7-11%; and SrO 3-9%, preferably 3.5-9%, and advantageously 4.5-9%, said composition having an Al2O3/ZrO2 weight ratio varying from 0.7 to 1.8, preferably from 0.7 to 1.2. The substrates obtained have a strain point at least equal to 570° C. and a coefficient of thermal expansion α20-300 between 70 and 90×10−7/° C..
摘要:
The invention relates to glass fibres having a chemical composition that contains the following constituents in the limits defined hereafter and expressed in percentage by weight, namely: 38 to 49 SiO2; 15 to 25 Al2O3; 1 to 15 CaO; 0 to 4 MgO; 14 to 25 Na2O; 0 to 10 K2O; 0 to 8 B2O3; 0 to 3 Fe2O3; and 0 to 3 P2O5.
摘要翻译:本发明涉及具有化学组成的玻璃纤维,其含有下述定义的下列成分,并以重量百分比表示,即:38至49 SiO 2; 15至25个Al 2 O 3 3; 1〜15 CaO; 0〜4 MgO; 14至25 Na 2 O; 0至10K 2 O; 0至8 B 2 O 3 3 0至3 Fe 2 O 3 3; 和0至3个P u> O u> 5。
摘要:
The present invention relates to a chemically resistant glass composition for the production of reinforcing strands which comprises the following constituents within the limits defined below, expressed in mol %: SiO2 67-72%; ZrO2 5-9.5%, preferably ≧7.5%; R2O (R=Na, K and Li) 11-17%; Li2O 0-5.5%; K2O 0-5.5%; Na2O
摘要:
The invention relates to a furnace for continuously melting a silica-containing compound comprising at least two series-arranged baths each of which is provided with at least one burner submerged into molten material. Said invention also relates to a method for producing silica-containing compounds, the silica and the melt thereof being loaded into the first bath. The invention is intentionally adapted for the high performance production of frits for re-enameling ceramic products (sandstone, faience and burnt clay) at low temperatures and a fast transition time.
摘要:
The invention relates to a composition comprising mica and glass, said glass comprising: 10 to 30 mol % of SiO2 5 to 40 mol % of BaO 15 to 30 mol % of B2O3, the sum of the concentrations of zinc oxide, alkali metal oxide and alkaline earth oxide in the glass extending from 15 to 65 mol %. This composition is intended to be molded at a temperature above the Tg of the glass so as to form composite parts that can serve as an electrical insulator.
摘要翻译:本发明涉及包含云母和玻璃的组合物,所述玻璃包括:10-30%(摩尔)的SiO 2 5至40mol%的BaO 15至30mol%的B 2 O 3,氧化锌,碱金属氧化物的浓度和 玻璃中的碱土金属氧化物从15增加到65mol%。 该组合物旨在在高于玻璃的Tg的温度下模塑,以形成可用作电绝缘体的复合部件。
摘要:
The invention relates to reinforcing glass strands, the composition of which comprises the following constituents within the limits defined below expressed as percentages by weight: SiO262-72% Al2O3 2-10% CaO 7-20% MgO1-7% Na2O + K2O + Li2O 10-14.5% Li2O0-2% BaO + SrO + ZnO0-4% B2O30-4% F20-2% As2O3 0-0.15% These strands are composed of a low-cost glass offering an excellent compromise between the mechanical properties represented by the tensile strength and the fiberizing conditions.The invention also relates to the composites based on organic and/or inorganic material(s) and the aforementioned glass strands.