Abstract:
A composition for forming a high temperature, alkali resistant refractory fiber. The compositional formulation, by weight, is 46-52% silica, 32-38% alumina, 13-18% zirconia with a silica to zirconia ratio in the range from 2.6 to 3.8. These fibers have a maximum service temperature in the range of 2550.degree. F. (1400.degree. C.) to 2650.degree. F. (1455.degree. C.) and exhibit better shrinkage resistance than similarly rated commercially available refractory fiber.
Abstract:
This invention relates to the production of sodium fluoride opal glasses tinted in a shade lying in the range from "cream-like" to "beige" by an iron-sulfur system, the analyzed quantities of sulfur (S), sulfide ions (S.sup.-2), iron (Fe), and ferric ions (Fe.sup.+3) conforming to the following expressions:S.sup.-2 /S.gtoreq.0.1570.ltoreq.Fe.ltoreq.300 ppm0.05.ltoreq.Fe.sup.+3 /Fe.sup.+2 .ltoreq.1and 3.ltoreq.S.sup.-2 .ltoreq.160 ppm when the ZnO content is below 0.1%. The glasses are especially applicable for use in culinary ware.
Abstract translation:本发明涉及通过铁 - 硫系统生产在“奶油状”至“米色”范围内的阴影中的分析量的硫(S),硫化物离子(S- 2),符合以下表达式的铁(Fe)和铁离子(Fe + 3):S-2 / S> / = 0.15 70 Fe = 300ppm 0.05 Fe = 3 + Fe 当ZnO含量低于0.1%时,+2 1和3 S-2 = 160ppm。 眼镜特别适用于烹饪用具。
Abstract:
The present invention is primarily concerned with the production of transparent glass-ceramic articles especially suitable for use as cooking utensils nucleated with up to 6% TiO.sub.2 and containing up to 0.25% Fe.sub.2 O.sub.3 and, perhaps, up to 0.1% MnO.sub.2, which exhibits a light brown tint that the human eye perceives essentially constant when the dominant wavelength is held between 577-581 nm, purity between 8-15%, and the transmission factor between about 65-80. The desired tint is obtained by including 0.0025-0.02% CoO+Cr.sub.2 O.sub.3, consisting of 0.001-0.01% CoO and 0.001-0.01% Cr.sub.2 O.sub.3, in the base composition of the glass-ceramic. An opaque glass-ceramic article exhibiting a light, warm creamy color perceived by the human eye as essentially constant when the dominant wavelength is held between 570-585 nm, the reflectance factor is in excess of 64, and the purity factor is no greater than 8% can be produced from like base compositions which are crystallized in situ at higher temperatures.
Abstract translation:本发明主要涉及透明玻璃陶瓷制品的生产,其特别适合用作高达6%TiO 2成核的炊具,并且含有高达0.25%的Fe 2 O 3,以及高达0.1%的MnO 2,其表现出光 当主波长保持在577-581nm之间,纯度在8-15%之间,透射因子在约65-80之间时,人眼感觉到基本上恒定的棕色色调。 通过在玻璃 - 陶瓷的基础组合物中包含由0.001-0.01%CoO和0.001-0.01%Cr 2 O 3组成的0.0025-0.02%CoO + Cr 2 O 3来获得所需的着色。 当主波长保持在570-585nm之间时,表现出由人眼感觉到的光,温暖的奶油色的基本不变的不透明玻璃陶瓷制品,反射系数超过64,纯度因子不大于 8%可以从在较高温度下原位结晶的相似的基础组合物生产。
Abstract:
Dark blue dyed furnace sight glass of soda-lime-silica further containing carbon and oxides of iron and cobalt with substantially no infrared transmission and which sight glass affords a view of details in the melting operation. Other ingredients may include K.sub.2 O, MgO, Al.sub.2 O.sub.3 or ZrO.sub.2.
Abstract:
Electrochemical devices use a vitreous material having a general formulaxAaR.sub.b --yNmRc--zN.sub.n Y.sub.pwherein A is Si, Ge, P, S, B, Nb, As, V, Cr or Mo; R is O, S or Se; N is Li, Na, K or Ag and Y is I, Br, Cl, F, ClO.sub.4, CF.sub.3, SO.sub.3, SCN or SO.sub.4 with the proviso that the material contain at least two salts NY. Such materials have increased cationic conductivity.
Abstract:
An at least double silicate of an alkali metal and at least one other metal is prepared by interreacting (i) an aqueous solution of an alkali metal silicate and (ii) a solution of an oxide of such at least one other metal, or salt thereof, in the presence of (iii) a water-miscible polar organic liquid, whereby said at least double silicate is suspended in the organic reaction medium in insoluble and finely divided form. The separated product is an admirable glass-former.
Abstract:
Quartz glass includes iron and aluminum. The total iron content ranges from 0.01 to 5% by weight, and the total aluminum content ranges from 0.01 to 10% by weight. The quartz glass exhibits infrared rays-absorbing ability and visible light-transmitting ability. Also a process for making such a quartz glass is disclosed.
Abstract:
A thallium-containing optical glass composition which contains the following oxides in the indicated proportions in mole %:______________________________________ SiO.sub.2 35-80 Tl.sub.2 O 4-26 Tl.sub.2 O + R.sub.2 O 8-42 (in which R is an alkali metal) ZnO 6-26 ZrO.sub.2 0-2 Al.sub.2 O.sub.3 0-8 SnO and/or SnO.sub.2 0-5 B.sub.2 O.sub.3 0-less than 10 ______________________________________ and satisfies the following relations:O.ltoreq.K.sub.2 O.ltoreq.104.ltoreq.Na.sub.2 O+Li.sub.2 O.ltoreq.260.1.ltoreq.ZrO.sub.2 +Al.sub.2 O.sub.3 +SnO and/or SnO.sub.2 .ltoreq.8 ##EQU1##
Abstract translation:含有以摩尔%表示的比例的以下氧化物的含铊的光学玻璃组合物:-SiO 2 35-80 -Tl 2 O 4-26 -Tl 2 O + R 2 O- 8-42 - (其中R是碱金属)-ZnO 6 -26-ZrO 2 0-2 -Al 2 O 3 0-8 -SnO和/或SnO 2 0-5 -B 2 O 0小于10,并且满足以下关系:O = K 2 O = 10 4 Na 2 O + Li 2 O = 26 0.1 ZrO 2 + Al 2 O 3 + SnO和/或SnO 2 b>
Abstract:
A thallium-containing optical glass composition which comprises the following oxides in the indicated proportions in mole %: SiO.sub.2 35-80, Tl.sub.2 O 1-30, Tl.sub.2 O+R.sub.2 O (R being an alkali metal) 1-35, ZnO 0-35, GeO.sub.2 0-30, BaO 0-25, TiO.sub.2 0-20, MgO 0-20, B.sub.2 O.sub.3 0-less than 10, ZrO.sub.2 0-2, Al.sub.2 O.sub.3 0-8, SnO 0-5, CaO 0-10, SrO 0-10, PbO 0-10, La.sub.2 O.sub.3 0-5, Bi.sub.2 O.sub.3 0-8, and Ta.sub.2 O.sub.5 0-2, and satisfies the following relations:5.ltoreq.ZnO+GeO.sub.2 +BaO+TiO.sub.2 +MgO+B.sub.2 O.sub.3 .ltoreq.40,0.1.ltoreq.ZrO.sub.2 +Al.sub.2 O.sub.3 +SnO.ltoreq.8,and0.ltoreq.CaO+SrO+PbO+La.sub.2 O.sub.3 +Bi.sub.2 O.sub.3 +Ta.sub.2 O.sub.5 .ltoreq.10.
Abstract translation:含有铊的光学玻璃组合物,其含有以摩尔%表示的比例的以下氧化物:SiO 2 35-80,T 1/2 O 1-30,T 10 O + R 20(R为碱金属)1-35,ZnO 0-35,GeO 2 0-30,BaO 0-25,TiO 2 0-20,MgO 0-20,B 2 O 0小于10,ZrO 2 0-2,Al 2 O 3 0-8,SnO 0-5,CaO 0-10,SrO 0-10 ,PbO 0-10,La 2 O 3 0-5,Bi 2 O 3 0-8和Ta 2 O 5 0-2,并且满足以下关系:5 ZnO + GeO 2 + BaO + TiO 2 + MgO + B 2 O 3 < / = ZrO 2 + Al 2 O 3 + SnO 8,0
Abstract:
A partly hydrolyzed gelled polysiloxane mass is contacted with a solution of dopant metal compounds which diffuse therein under thermally controlled condition; alternatively, a partly hydrolyzed gelled polysiloxane mass containing distributed therein dopant metal compounds is contacted with a solvent into which said dopant metal compounds will partly diffuse under thermally controlled conditions.