Abstract: A process for producing a porous ceramic body comprises a) mixing a coated porogen with a silicate or a oxide ceramic precursor, wherein the porogen is decomposable to gaseous decomposition products and optionally solid products upon heating, and is coated with a coating agent; b) forming a green body from the mixture obtained in step (a); and c) firing the green body obtained in step (b) to obtain the ceramic body, whereby the porogen decomposes to form pores within the ceramic body and the coating agent is deposited at the inner surface of the pores. The porogen is coated with a coating agent which, upon firing, is deposited at the inner surface of the ceramic pores, so that porous ceramics having decreased weight and improved porosity are obtained, while maintaining at the same time good mechanical strength. A green body and a porous ceramic body obtainable with the above-mentioned process are described too.

Abstract: A plurality of soda-lime glass batch materials are formed into granules that include a core and a shell surrounding the core. The core comprises a first portion of the plurality of glass batch materials, and the shell comprises a remaining portion of the plurality of glass batch materials. These core-shell granules can be melted in a glass furnace to produce molten soda-lime glass in less time and at a lower temperature than conventional soda-lime glass batch preparations.

Abstract: Treatment methods for coated or uncoated proppants that can, among other things, control fugitive dust during typical handling procedures with typical transport equipment and/or add functional features to the proppant solid are disclosed herein.

Abstract: Cements, such as alkali activated aluminosilicate, may be used as coatings on proppants, such as brown sand and white sand, to improve the strength thereof. The resulting coated proppants show increased strength as well as produced fines of lower than about 10 wt % at 10,000 psi closure stress.

Abstract: A process for the treating a mature fine tailings stream is provided. Treatment comprises contacting an alkali metal silicate or polysilicate microgel and an activator with mature fine tailings, entrapping the sand and clay fines within a polysilicate microgel, spreading the silica microgel over a surface, and allowing the silica microgel to dry, and producing a trafficable surface.

Abstract: Methods are disclosed for synthesizing nanocomposite materials including ferromagnetic nanoparticles with polymer shells formed by controlled surface polymerization. The polymer shells prevent the nanoparticles from forming agglomerates and preserve the size dispersion of the nanoparticles. The nanocomposite particles can be further networked in suitable polymer hosts to tune mechanical, optical, and thermal properties of the final composite polymer system. An exemplary method includes forming a polymer shell on a nanoparticle surface by adding molecules of at least one monomer and optionally of at least one tethering agent to the nanoparticles, and then exposing to electromagnetic radiation at a wavelength selected to induce bonding between the nanoparticle and the molecules, to form a polymer shell bonded to the particle and optionally to a polymer host matrix. The nanocomposite materials can be used in various magneto-optic applications.

Abstract: In at least one embodiment, a compressed gaseous fuel storage pellet is provided comprising a gas adsorbent material and a thermally conductive material extending substantially an entire dimension of the pellet and having a thermal conductivity of at least 75 W/mK. The pellet may include at least two layers of gas adsorbent material spaced apart along a compression direction of the pellet and a substantially continuous layer of the thermally conductive material disposed between the at least two layers of gas adsorbent material. The pellet may further include thermally conductive projections which intersect the layer(s) of thermally conductive material.

Abstract: Silica-dysprosium oxide core-shell nanoparticles and a method for preparing the silica-dysprosium oxide core-shell nanoparticles are disclosed. Initially, ethyl silicate, n-butanol, ethylenediamine, and distilled water are mixed in the presence of ultrasonic radiation to prepare silica nanoparticles. Then, the silica nanoparticles are isolated. Next, the isolated silica nanoparticles, an acid, n-butanol, and dysprosium oxide are mixed in the presence of ultrasonic radiation to prepare silica-dysprosium oxide core-shell nanoparticles. Finally, the silica-dysprosium oxide core-shell nanoparticles are isolated.

Abstract: The present invention relates to thermally conductive pigments which consist of a substrate and a coating applied thereto comprising aluminium oxide and/or aluminium oxide hydrate, to a process for the preparation of these pigments, and to the use thereof.

Abstract: A relatively low density, high strength round proppant material having (i) a round core made of a sintered mixture of fly ash and clay or, in some instances, fly ash, clay, and bauxite; and (ii) an outer shell made of sintered bauxite, and a method of making the same.

Abstract: Functionalized nanoparticles, which are obtainable by combining in a first step a functionalized dyestuff, a silicon-based spacer and a catalyst, and in a second step reacting the product obtained in the first step with a co-reactive organic silicon, aluminum, zirconium or titanium compound. Optionally, the thus obtained functionalized nanoparticles can be combined or encapsulated with a polymer. The functionalized nanoparticles are useful as colorants and fluorescents in plastics, paints, inks, electronic materials, cosmetic articles, and the like.

Abstract: A method for manufacturing a hollow metal sphere with a mesoporous structure is disclosed, which comprises the following steps: (A) providing a hollow sphere template with a mesoporous structure, wherein the hollow sphere template comprises: a first shell with plural channels penetrating the first shell, the material of the first shell comprises a mesoporous silica material, and the mesoporous silica material has a cubic Ia3d symmetry pore structure; (B) mixing the hollow sphere template with a metal precursor; (C) reducing the metal precursor; and (D) removing the hollow sphere template to obtain a hollow metal sphere with a mesoporous structure. In addition, the present invention also provides a hollow metal sphere with a mesoporous structure prepared by the aforementioned method.

Abstract: Hydrophilic coating compositions and methods to make and use the compositions are disclosed. The compositions include a photocatalytic pigment material made up of an inorganic pigment and a monomeric anti-oxidants and free radical scavenger that is contacted to the surface of the inorganic pigment.

Abstract: The present invention relates to composite materials with a high dielectric constant and high dielectric strength and to methods of producing the composite materials. The composite materials have high dielectric constants at a range of high frequencies and possess robust mechanical properties and strengths, such that they may be machined to a variety of configurations. The composite materials also have high dielectric strengths for operation in high power and high energy density systems. In one embodiment, the composite material is composed of a trimodal distribution of ceramic particles, including barium titanate, barium strontium titanate (BST), or combinations thereof and a polymer binder.

Abstract: The present invention relates to a core-shell nanoparticle, a method of fabricating the same and a gas sensor using the same, more particularly to a core-shell nanoparticle which includes a core including a first metal oxide and a shell including a second metal oxide, the first metal oxide and the second metal oxide being oxides of the same metal having different oxidation states, a method of fabricating the same and a gas sensor using the same.

Abstract: A method for producing organic-inorganic composite particles includes preparing a cyclic olefin monomer expressed by general formula (1) and inorganic particles coated with a compound having a carbon-carbon double bond, and binding at least one of the cyclic olefin monomer and a cyclic olefin polymer derived from the cyclic olefin monomer to the carbon-carbon double cong by bringing the cyclic olefin monomer into contact with the inorganic particles in the presence of a catalyst for ring opening metathesis polymerization of the cyclic olefin monomer:

Abstract: Simplified and improved processes are provided for manufacturing titanium dioxide pigments including a surface treatment whereby a plurality of inorganic oxides or a combination of one or more inorganic oxides with one or more inorganic phosphates are applied to a titanium dioxide base pigment. Aqueous acid-soluble sources of the desired inorganic oxides and/or phosphates are predissolved in an aqueous acid, and these can be added on a batch wise or more preferably on a continuous basis to an alkaline slurry containing the titanium dioxide base pigment and to which aqueous alkaline-soluble sources of the desired inorganic oxides are being or have been added previously. Co-precipitation of the oxides and/or oxides and phosphates is then accomplished by an adjustment of the pH, to provide a surface treated pigment with excellent homogeneity of the deposited mixed oxides and/or oxides and phosphates.

Abstract: An apparatus for producing grafted Group IV nanoparticles is provided and includes a source of Group IV nanoparticles. A chamber is configured to carry the nanoparticles in a gas phase and has an inlet and an exit. The inlet configured to couple to an organic molecule source which is configured to provide organic molecules to the chamber. A plasma source is arranged to generate a plasma. The plasma causes the organic molecules to break down and/or activate in the chamber and bond to the nanoparticles. A method of producing grafted Group IV nanoparticles is also provided and includes receiving Group IV nanoparticles in a gas phase, creating a plasma with the nanoparticles, and allowing the organic molecules to break down and/or become activated in the plasma and bond with the nanoparticles.

Abstract: A process for preparing encapsulated pigment granules, including the steps of (1) loading iron oxide powder into a mixer; (2) rotating the mixer to cause the iron oxide powder to continuously cascade within the mixer, so as to form compacted pigment granules; and (3) spraying liquid encapsulation solution onto the cascading compacted pigment granules to cause the cascading compacted pigment granules to be encapsulated.

Abstract: A system, formulation and method for producing ceramic vacuum micro spheres utilizing a spray dryer having a top mounted atomizer rotary wheel and a side or bottom mounted dual fluid nozzle, forming microspheres by spraying solution from the top mounted atomizer rotary wheel and simultaneously coating the microspheres by spraying solution from the side or bottom mounted dual fluid nozzle, transferring the microspheres to a secondary heating unit, and drying the microspheres, all under vacuum of between 1 to 5 millibars.

Abstract: Algae-resistant roofing granules include a mineral core and an exterior coating including clay, colloidal silica, phosphate, a metal oxide, and a photocatalytic particulate having an average size under 100 nm. By varying the proportions of the components to the binder for the exterior coating, improved control of the pot life of the coating composition can be achieved, and the binder can be formulated to accommodate different manufacturing conditions.

Abstract: According to various embodiments the present disclosure provides porous particles and methods and apparatus for forming porous microparticles. According to a specific embodiment, the present disclosure provides microparticles with multi-nodal porosity and methods for forming the same. According to a still further embodiment, the present disclosure provides microfluidic device-based methods for forming microparticles with multi-nodal nanoporosity. Furthermore, the present disclosure provides populations of monodisperse mesoporous microparticles with multi-nodal nanoporosity and methods and apparatus for forming the same. According to a specific embodiment, the present disclosure provides populations of monodisperse mesoporous microparticles formed using a microfluidic device.

Abstract: Iron-silicon oxide particles with a core and an outer shell have improved heating rates in a magnetic field. The core contains maghemite, magnetite, and haematite. The outer shell is essentially or exclusively silicon dioxide. The crystallite diameter of the haematite determined by X-ray diffraction is greater than 120 nm. A ratio of the brightness of the Debye-Scherrer diffraction ring by electron diffraction at a lattice plane spacing of 0.20+/?0.02 nm, comprising maghemite and magnetite, to the brightness of the Debye-Scherrer diffraction ring by electron diffraction at a lattice plane spacing of 0.25+/?0.02 nm, comprising maghemite, magnetite and haematite, is no more than 0.2.

Abstract: Liquid silicone rubber base polymer compositions having improved color are prepared by reaction of fumed silica reinforcing filler with a silazane, and without drying the silazane-treated filler, an aliphatically unsaturated silicone is added, heated to above 80° C., and then further aliphatically unsaturated silicone is added. The compositions have improved whiteness and color reproducibility.

Abstract: The invention relates to a process for preparing a core-shell structured lithiated manganese oxide, comprising the steps of providing spinel LiMxMn2-xO4 particles, where M is one or more metal ions selected from the group consisting of Li, Mg, Cr, Al, Co, Ni, Zn, Cu, and La, and 0?x<1, as core particles, and subjecting the spinel particles to a heat-treatment with a reactive chemical reagent in the form of liquid or gas to form a shell layer on the surface of the core particles, and to the prepared core-shell structured lithiated manganese oxide, and its use as a cathode material for a lithium ion battery

Abstract: A method includes combining a coating material and an uncoated particulate core material in a solution having a selected ionic strength. The selected ionic strength promotes coating of the uncoated particulate core material with the coating material to form coated particles; and the coated particles can be collected after formation. The coating material has a higher electrical conductivity than the core material.

Abstract: Disclosed is a resin-coated metal pigment comprising 100 parts by weight of a metal pigment and 0.1 to 50 parts by weight of a resin, wherein the resin is attached on the surface of the metal pigment. The resin-coated metal pigment is produced by circulating a portion of a slurry solution containing the metal pigment in an external-circulation type vessel during the resin coating treatment in a reaction vessel and applying a vibration to the external-circulation type vessel with an ultrasonic wave.

Abstract: The invention relates to a method for coating metallic effect pigments with silicon oxide, in which alkoxysilane(s) and/or silicon halide(s) in organic solvent are reacted with water in the presence of metallic effect pigments, where the reaction includes at least two steps, where (a) the reaction is carried out with addition of acid in a first step and with addition of base in a second step or where (b) the reaction is carried out with addition of base in a first step and with addition of acid in a second step. The invention further relates to the coated metallic effect pigments producible by way of the method of the invention, and also to the use thereof.

Abstract: A method of forming an aggregate. The method comprising forming a green pellet including waste glass and additive(s). The unfired pellets are coated with a refractory material and sintered such that some of the additive/additives breaks down to generate gas which is at least partially retained in the microstructure of the mixture to form pores, the additive/additives so being that upon heating the additive/additives and glass combine to produce glass ceramics.

Abstract: The present invention relates to a process for synthesizing carbon nanotubes by continuous chemical vapour deposition at the surface of reinforcements, said reinforcements constituting a mixture A (i) of particles and/or fibres of a material comprising at least one oxygen atom and (ii) of particles and/or fibres of a material chosen from carbides and/or of a material comprising at least one silicon atom, said process comprising the following steps, carried out under a stream of inert gas(es) optionally as a mixture with hydrogen: (i) heating of said mixture of reinforcements A in a reaction chamber at a temperature ranging from 400° C. to 900° C.

Abstract: The present invention relates to a method for preparing hierarchically ordered structures of inorganic phosphate particles, homogeneously deposited on the surface of a phyllosilicate, which is characterized in that it comprises the following steps: a) obtaining an acid solution of precursor compounds of an inorganic phosphate; b) preparing a dispersion of particles of a phyllosilicate in aqueous medium and acidifying the phyllosilicate dispersion by adding at least one acid, thereby obtaining an acid dispersion; c) mixing the acid solution obtained in step a) with the dispersion obtained in step b); and d), with stirring, adding a base to the mixture obtained in step c) until the required pH value for precipitating the corresponding inorganic phosphate on the phyllosilicate particles has been achieved, resulting in a hierarchically ordered structure of homogeneously distributed submicrometric or nanometric inorganic phosphate particles supported on the phyllosilicate surface.

Abstract: Disclosed is a process for producing a resin-coated metal pigment comprising 100 parts by weight of a metal pigment and 0.1 to 50 parts by weight of a resin, wherein the resin is attached on the surface of the metal pigment, the process comprising applying an ultrasonic vibration during resin coating treatment.

Abstract: The present invention relates to a method of preparing calcium carbonate coated calcium hydroxide particles by combining calcium hydroxide and dry ice in an acquiescent manner. The invention further relates to an apparatus for carrying out the method and to the use of the calcium carbonate coated calcium hydroxide particles of the method as filler for use with thermoplastics polymers.

Abstract: The anode active material of the present invention comprises an amorphous SiOx C composite with a core-shell structure consisting of a core comprising particles of a silicon oxide (SiOx) free of Si crystals and a shell which is a coating layer formed on at least a part of the surface of the core and comprising a carbon material, thereby providing high capacity and effectively inhibiting volume expansion which has been caused in the use of Si, to improve life characteristics, and eventually providing a lithium secondary battery having such characteristics.

Abstract: A method for making a carbon nanotube based composite is provided. In the method, carriers, solution containing metal ions, and a carboxylic acid solution are mixed to form a mixed solution containing a complex compound. A reducing agent is added into the mixed solution. The metal ions are reduced to metal particles absorbed on the surface of the carriers. The carriers having the metal particles absorbed thereon are purified to obtain the carbon nanotube based composite.

Abstract: This invention relates to a negative electrode material for lithium-ion batteries comprising silicon and having a chemically treated or coated surface influencing the zeta potential of the surface. The active material consists of particles or particles and wires comprising a core (11) comprising silicon, wherein the particles have a positive zeta potential in an interval between pH 3.5 and 9.5, and preferably between pH 4 and 9.5. The core is either chemically treated with an amino-functional metal oxide, or the core is at least partly covered with OySiHx groups, with 1<x<3, 1<y<3, and x>y, or is covered by adsorbed inorganic nanoparticles or cationic multivalent metal ions or oxides.

Abstract: A method of coloring a surface of a zirconium-based metallic glass component that includes the step of imparting interference colors by carrying out an anodizing process using an alkaline solution to form a film having a thickness of 300 nm or less on the surface of the zirconium-based metallic glass component.

Abstract: A method of producing powder product includes the steps of: Feeding a precursor powder material into a jet mill; feeding a gas into the jet mill to initiate a jet milling operation to produce size-reduced particles; and coating size-reduced particles with oil so that newly exposed surfaces of size-reduced particles are coated with oil, wherein the coating step includes one or more of a post-milling oil injection process and a pre-milling oil injection process.

Abstract: The invention relates to metal-treated particles, methods for their preparation and methods for using metal-treated particles for, e.g., remediation of process waste-water, sewage, contaminated groundwater aquifers, and soil containing harmful contaminants. Another aspect of the invention relates to a metal-treated particle comprising a ferrosoferric oxide core and a metal supported on the core, where the average diameter or other largest transverse dimension of the core is from about 75 nm to about 990 nm and the amount of metal supported on the core is from about 8% to about 22% by weight, based on the weight of the metal-treated particle.

Abstract: A water treatment composition capable of effectively adsorbing pollutants from water is described. The composition includes magnetic extractants, which comprise magnetite nanoparticles containing functional groups. The composition is used to remove from water and aqueous streams oils and other contaminants. A process for removing contaminants from water and apparatus used in the process are also described.

Abstract: A high strength composite particle comprised of a series of incrementally applied resin microlayer coatings such that each of the microlayer partial coatings are interleaved with each other is described. Methods of making the composite particles, as well as methods of using such particles as a proppant in oil and gas well hydraulic fracturing are also described.

Abstract: A nanocomposite includes carbon-encapsulated transition metal oxide nanoparticles. The carbon-encapsulated transition metal oxide nanoparticles comprise a transition metal oxide core having a diameter of from 5 nm to 50 nm covered by a graphitic coating having a thickness of from 1 nm to 5 nm.

Abstract: Disclosed herein are composites capable of self-repairing. In some examples, the composites include a binding medium and a plurality of binding medium-repairing particles. The binding medium-repairing particles disclosed herein comprise a reactive agent encapsulated in a shell, where the reactive agent can interact with the binding medium to form an aggregate in the presence of an aqueous medium. Also disclosed herein are methods for making the composites and methods for making the binding medium-repairing particles.

Abstract: A process of growth in the thickness of at least one facet of a colloidal inorganic sheet. By sheet is meant a structure having at least one dimension, the thickness, of nanometric size and lateral dimensions great compared to the thickness, typically more than 5 times the thickness. By homostructured is meant a material of homogeneous composition in the thickness and by heterostructured is meant a material of heterogeneous composition in the thickness. The process allows the deposition of at least one monolayer of atoms on at least one inorganic colloidal sheet, this monolayer being constituted of atoms of the type of those contained or not in the sheet. Homostructured and heterostructured materials resulting from such process as well as the applications of the materials are also described.

Abstract: A thermoelectric material that comprises a binary main group matrix material and nano-particles and/or nano-inclusions of metal oxide dispersed therein, and has electrical properties of ternary doped materials. A process for making the thermoelectric material that includes reacting a reduced metal precursor with an oxidized metal precursor in the presence of nanoparticles.

Abstract: A method of forming a powder MjXp wherein Mj is a positive ion or several positive ions selected from alkali metal, alkaline earth metal or transition metal; and Xp is a monoatomic or a polyatomic anion selected from Groups IIIA, IVA, VA, VIA or VIIA; called complexometric precursor formulation or CPF. The method includes the steps of: providing a first reactor vessel with a first gas diffuser and an first agitator; providing a second reactor vessel with a second gas diffuser and a second agitator; charging the first reactor vessel with a first solution comprising a first salt of Mj; introducing gas into the first solution through the first gas diffuser, charging the second reactor vessel with a second solution comprising a salt of Mp; adding the second solution to the first solution to form a complexcelle; drying the complexcelle, to obtain a dry powder; and calcining the dried powder of said MjXp.

Abstract: A process for manufacturing titanium dioxide pigment is provided. The process comprises preparing an aqueous slurry of titanium dioxide particles. The process further includes deagglomerating the aqueous slurry of titanium dioxide particles using ultrasonication.

Abstract: A plurality of soda-lime glass batch materials are formed into granules that include a core and a shell surrounding the core. The core comprises a first portion of the plurality of glass batch materials, and the shell comprises a remaining portion of the plurality of glass batch materials. These core-shell granules can be melted in a glass furnace to produce molten soda-lime glass in less time and at a lower temperature than conventional soda-lime glass batch preparations.

Abstract: A thermoelectric material that comprises a ternary main group matrix material and nano-particles and/or nano-inclusions of a Group 2 or Group 12 metal oxide dispersed therein. A process for making the thermoelectric material that includes reacting a reduced metal precursor with an oxidized metal precursor in the presence of nanoparticles.

Abstract: Processes for producing organoamine-stabilized silver nanoparticles are disclosed. The processes comprise: (a) forming a solution comprising an organic solvent and a first amount of organoamine; (b) adding silver salt particles to the solution; (c) adding a second amount of organoamine to the solution; (d) adding an organohydrazine to the solution; and (e) reacting the solution to form organoamine-stabilized silver nanoparticles.