Abstract: This invention is directed to ceramic metal composite useful as a refractory and having improved abrasion, corrosion, and oxidation resistance. The ceramic metal composite of the present invention is comprised of ceramic refractory aggregate, metal particulate, and a nonaqueous binder wherein the ceramic refractory aggregate, metal particulate, and binder residuals react to form a three-dimensional ceramic-metal matrix. The ceramic-metal matrix is further stabilized by bonds between the metal particulate, reaction products of the metal particulate, and the ceramic refractory aggregate.

Abstract: The present invention relates to a composition and a method for producing hexagonally-packed mesoporous metal oxides wherein the metal oxide is selected from transition metals and lanthanide metals. The composition includes hexagonally packed metal oxide mesostructures that are resistant to pore collapse upon removal of surfactant and are thermally stable. The composition can include a surfactant complexed with the metal. Also described are methods for producing the hexagonally-packed mesoporous metal oxides. The present invention also relates to compositions and methods for producing porous metal oxides. The compositions include microporous and mesoporous metal oxides that are resistant to pore collapse upon removal of surfactant and are thermally stable. Also described are methods for producing microporous metal oxides.

Abstract: A crystallized glass and a manufacturing method therefor are disclosed. The crystallized glass comprises .beta.-spodumene solid solution as the predominant crystal phase, and is produced by forming a melted raw glass, cooling and thereafter heat-treating it. The raw glass has a composition comprising, expressed in terms of weight percent: 52-65% SiO.sub.2 ; 8-15% Al.sub.2 O.sub.3 ; 0-4% P.sub.2 O.sub.5, 3-8% TiO.sub.2, and 0-4% ZrO.sub.2, wherein the following inequality is satisfied,0.1<(% of P.sub.2 O.sub.5 +% of ZrO.sub.2)/(% of TiO.sub.2)<0.8; 0-10% ZnO, 0-10% MgO, and 0-5% BaO, wherein the following inequality is satisfied,<(% of ZnO+% of MgO+% of BaO)<15; 3-12% Li.sub.2 O; 0-4% K.sub.2 O; and As.sub.2 O.sub.3 and Sb.sub.2 O.sub.3, wherein the following inequality is satisfied,0<% of As.sub.2 O.sub.3 +% of Sb.sub.2 O.sub.3 <2.

Abstract: A high silica zeolite (UTD-1) using bis(pentamethyl-cyclopentadienyl)cobalt(III) hydroxide, Cp*.sub.2 CoOH is disclosed. UTD-1 is a large pore molecular sieve having one dimensional channels running in parallel. The synthesis and characterization of silicates incorporating titanium, vanadium, aluminum or boron in the silicate framework is described. Calcined Ti-UTD-1 containing cobalt oxide and the cobalt free molecular sieves are shown to be effective oxidation catalysts. Oxidation of alkanes with hydrogen peroxide and t-butylhydroperoxide (t-BHP) and the room temperature oxidation of cyclohexane to adipic acid are demonstrated.

Abstract: A zirconia material resistant to low temperature degradation and process for manufacturing thereof includes heat treating zirconia material or zirconia composite material at 1200.degree.-1700.degree. C. in the presence of nitrogen source.

Abstract: An object of the present invention is to provide a glassy sintered body and to effectively reuse scrapped glass.The glassy sintered body of the present invention is made by preparing a raw material of the body by adding ceramic clay to glass as a main element so as to adjust the amount of water and kneading the glass and the clay, forming the raw material into a prescribed form, and sintering the formed material.

Abstract: This invention relates to new crystalline organic compositions having unique combinations of framework-confined uniform mesopores and textural mesopores and to a method for their preparation. The compositions typically possess a framework wall thickness of at least about 17 .ANG., small elementary particle size of less than about 400 .ANG., and ratio of textural to framework-confined mesoporosity of greater than about 0.2. The formation of the mesoporous structure is accomplished by a novel self-assembly mechanism involving hydrogen bonding between neutral amine surfactant (S.degree.) and neutral inorganic oxide precursor (I.degree.). This S.degree.I.degree. templating approach allows for facile and environmentally benign recycling of the cost-intensive template by simple solvent extraction methods.

Abstract: A method for the preparation of new quasi-crystalline, porous inorganic oxide compositions formed in the presence of fluoride ion possessing a disordered assembly of worm-like channels. The method uses an interaction between various nonionic polyethylene oxide based surfactants (N.degree.) and neutral inorganic oxide precursors (I.degree.) in an aqueous solution and then the formation of dispersed particles in the aqueous solution in the presence of fluoride. This (N.degree. I.degree. F.sup.-) templating approach introduces several new concepts to mesostructure synthesis. The application of the low-cost, non-toxic and biodegradable surfactants and ambient reaction temperatures, introduces environmentally clean synthetic techniques to the formation of mesostructures. Recovery of the template can be achieved through solvent extraction where the solvent may be water or ethanol.

Abstract: A novel micro-meso porous amorphous titanium silicates having a molar composition in terms of the anhydrous oxides of TiO.sub.2 :(5-400) SiO.sub.2, the said titanium silicates being further characterised by (a) the absence of any line corresponding to individual oxides of titanium and silicon in its x-ray diffraction pattern, (b) the presence of interatomic vectors around 1.6-1.7, 2.7-2.8, 4.1-4.2 and 5.0-5.2 .ANG. in the radial electron density distribution, (c) an absorption band around 220 nm in the ultraviolet region corresponding to tetrahedral Si--O--Ti linkage, (d) an absorption band around 960 cm.sup.-1 in infrared region corresponding to tetrahedral Si--O--Ti linkage and (e) a bimodal pore size distribution with the first peak width maximum at a value less than 10 .ANG. and the second peak width maximum between 10 and 100 .ANG., respectively; and a process of preparing said micro-meso porous amorphous titanium silicates wihout any nitrogenated organic base and at a neutral pH of around 7.

Abstract: A lanthanum-lead-zirconium-titanium perovskite having the general composition Pb.sub.1-a La.sub.a (Mg.sub.x/2 W.sub.x/2)Ti.sub.y Zr.sub.z O.sub.3, wherein 0.01.ltoreq.a.ltoreq.0.05, 0.01.ltoreq.x.ltoreq.0.06, 0.4.ltoreq.y.ltoreq.0.5, 0.4.ltoreq.x.ltoreq.0.5, and x+y+z=1, which is doped with 0.5-2 mol % MnO.sub.2, has very good hard piexoelectric properties, for example a low loss factor tan .delta. and a high quality factor. This perovskite does not degrade under direct-current conditions. Since it has low sintering temperatures, it can be used to manufacture multilayer actuators having hard piexoelectric properties. A piezoelectric ceramic composition comprising such a perovskite can very suitably be used for hard multilayer actuators.

Abstract: Crystalline zeolites are prepared using a small quantity of an organic templating compound and a larger quantity of an amine component containing at least one amine having from one to eight carbon atoms, ammonium hydroxide, or mixtures thereof.

Abstract: A method is disclosed for preparing crystalline aluminosilicate zeolite L from a reaction mixture containing only sufficient water to produce zeolite L. In one embodiment, the reaction mixture is self-supporting and may be shaped if desired. In the method, the reaction mixture is heated at crystallization conditions and in the absence of an added external liquid phase, so that excess liquid need not be removed from the crystallized product prior to drying the crystals.

Abstract: This invention relates to new crystalline organic compositions having unique combinations of framework-confined uniform mesopores and textural mesopores and to a method for their preparation. The compositions typically possess a framework wall thickness of at least about 17.ANG., small elementary particle size of less than about 400.ANG., and ratio of textural to framework-confined mesoporosity of greater than about 0.2. The formation of the mesoporous structure is accomplished by a novel self-assembly mechanism involving hydrogen bonding between neutral amine surfactant (S.degree.) and neutral inorganic oxide precursor (I.degree.). This S.degree.I.degree. templating approach allows for facile and environmentally benign recycling of the cost-intensive template by simple solvent extraction methods.

Abstract: A window glass comprising at least one sheet of glass coated with an electroconductive ITO layer, pyrolyzed from powdered components, combined with a flexible plastic material of the PVB, PU, PVC type, with an index approaching more the index of the ITO layer than the index of air, with which the said layer is coated, and a sheet of glass dyed in the mass, with the same color as the ITO layer, and with properties of reduced energy transmission also entering advantageously into the composition of the window glass is provided. The invention particularly applies to the production of heated windshields for automobiles.

Abstract: A method is disclosed for preparing crystalline aluminosilicate Y zeolite from a reaction mixture containing only sufficient water to produce Y zeolite. In one embodiment, the reaction mixture is self-supporting and may be shaped if desired. In the method, the reaction mixture is heated at crystallization conditions and in the absence of an added external liquid phase, so that excess liquid need not be removed from the crystallized product prior to drying the crystals.

Abstract: ZSM-22 zeolite which is particularly pure and whose synthesis does not require the synthesis mixture to be stirred can be produced by the addition to the synthesis mixture of a small quantity e.g. 1000 ppm, of preformed ZSM-22 zeolite seed crystals.

Abstract: A ceramic enamel composition contains 40-80% by weight of at least one lead-free metal oxide frit containing precursors of Zn.sub.2 SiO.sub.4, such as ZnO and SiO.sub.2, wherein the amount of Zn.sub.2 SiO.sub.4 precursors is less than about 35% by weight of the at least one lead-free metal oxide frit, 0.05-15% by weight of a zinc silicate seed material, and 19-37% by weight of a pigment. The zinc silicate seed material preferably contains crystalline Zn.sub.2 SiO.sub.4. The enamel preferably also contains a bismuth silicate seed material. The ceramic enamel can be employed as a coating around the periphery of automotive glass and is effective in improving appearance and reducing degradation of underlying adhesives by ultraviolet radiation.

Abstract: The invention relates to a material comprised of silicotitanates having a crystalline structure similar to MCM-41 zeolites, said material being characterized in that it contains in its lattice atoms of titanium and channels in its porous structure whose average sizes exceed 10 .ANG., making possible its utilization in catalytic reactions wherein are involved large organic molecules, such as the oxidation of olefins to epoxides and glycols, alcohols to cetones, thio-ethers to sulfoxides and sulfones, and phenol to catechol and hydroquinone, and if Al is introduced into the structure it is then possible to prepare bifunctional catalysts "oxidant-acid/base." In order to obtain such product, and aqueous solution is used which contains the ion NR.sub.1 N.sub.2 N.sub.3 N.sub.4.sup.+ as well as another aqueous solution which contains tetramethyl ammonium hydroxide and a silica source (e.g. aerosil.RTM.. After homogenization, more silica is added, as is the Ti source ?e.g. Ti(C.sub.2 OH.sub.5).sub.4 !.

Abstract: Crystalline tectosilicate ZSM-5 zeolite may be prepared which comprise substantially needle-shaped agglomerates. Tectosilicate ZSM-5 zeolite having a .sup.29 Si NMR spectrum having at least three peaks indicates the presence of Si atoms in the structure having 0, 1 or 2 T-atoms as nearest neighbors.

Abstract: The invention relates to glass substrates intended for use as a support in data storage units, reinforced by surface ion exchanges and whose matrix comprises the constituents given hereinafter in the following weight proportions:______________________________________ SiO.sub.2 45-65% Al.sub.2 O.sub.3 0-20% B.sub.2 O.sub.3 0-5% Na.sub.2 O 4-12% K.sub.2 O 3.5-12% MgO 0-8% CaO 0-13% ZrO.sub.2 0-20% ______________________________________the sum of the oxides SiO.sub.2, Al.sub.2 O.sub.3 and ZrO.sub.2 remaining equal to or below 70%, said composition optionally incorporating the oxides BaO and/or SrO in proportions 11%.ltoreq.MgO+CaO+BaO+SrO.ltoreq.24% and the alkaline oxides are introduced in the following weight percentages 0.22%.ltoreq.Na.sub.2 O/Na.sub.2 O+K.sub.2 O.ltoreq.0.60.