摘要:
An additive for use with concrete mixtures, comprising a colorant, wherein the colorant further comprises a pigment having a predetermined color, and wherein the inorganic pigment is suspended in a solution that comprises a predetermined percent by weight of water; a predetermined percent by weight of dispersant; and a predetermined percent by weight of defoamer; and a concrete densification agent into which the colorant is mixed, wherein the concrete densification agent further comprises a predetermined percent by weight of water; a predetermined percent by weight of a densifier; a predetermined percent by weight of a water repellant; a predetermined percent by weight of a defoamer; a predetermined percent by weight of urea; a predetermined percent by weight of a freeze-thaw stabilizer; and a predetermined percent by weight of a thickener.
摘要:
Provided are construction material granules. In one embodiment, the granules include a core enclosed by a layer comprising a conductive material and a layer comprising a dielectric material. Also provided are related methods of constructing such materials.
摘要:
A method relating to making a metal coated filler includes mixing a solution of an organic diol with a plurality of porous filler particles to obtain a support mixture; contacting a metal salt solution with the support mixture forming a reaction mixture; and heating the reaction mixture to a temperature within a temperature range from about 50 degrees Celsius to about 200 degrees Celsius. The metal cations in the metal salt solution are reduced to metal particles by the organic diol and are disposed on the porous filler particles and on filler particle pore surfaces. The metal coated filler may then be optionally isolated. Electrically and/or thermally conductive articles including the metal coated fillers and methods for their manufacture are also disclosed.
摘要:
A composition for use as a thermally conductive composition in a heat-generating electronic device is provided. The composition comprises physically treated fillers modified with a surface area modifying agent and one or more resins.
摘要:
Provided are construction material granules. In one embodiment, the granules include a core enclosed by a layer comprising a conductive material and a layer comprising a dielectric material. Also provided are related methods of constructing such materials.
摘要:
A pourable aqueous cement composition is disclosed. The cement composition comprises a hydraulic cement, water and a selectively removable material comprising a plurality of selectively corrodible metal powder particles dispersed within the cement or a nanomatrix powder compact, or a combination thereof. An article, including a downhole article, and more particularly a reconfigurable downhole article is disclosed. The article includes a hydraulic cement, wherein the hydraulic cement has at least partially set into a permanent form. The article also includes a selectively removable material dispersed within the cement, the selectively removable material comprising a plurality of selectively corrodible metal powder particles dispersed within the cement or a nanomatrix powder compact, or a combination thereof, wherein the selectively removable material is configured for removal in response to a predetermined wellbore condition.
摘要:
A method for making the mesoporous material includes the following steps: dissolving a nanocrystal powder in an organic solvent, and achieving a solution A with concentration of 1-30 mg/ml; dissolving a surfactant in water, and achieving a solution B with an approximate concentration of 0.002-0.05 mol/ml; mixing the solution A and the solution B in a volume ratio of 1:(5-30), and achieving a mixture; stirring and emulsifying the mixture, until an emulsion C is achieved; removing the organic solvent from the emulsion C, and achieving a deposit; washing the deposit with deionized water, and achieving a colloid; and drying and calcining the colloid, and eventually achieving a mesoporous material. The mesoporous material has a large specific surface area, a high porosity, and a narrow diameter distribution.
摘要:
A composition for use as a thermally conductive composition in a heat-generating electronic device is provided. The composition comprises physically treated fillers modified with a surface area modifying agent and one or more resins.
摘要:
Fibrous monolith composites suitable for use in high temperature environments and/or harsh chemical environments are provided, along with methods of preparation thereof. The fibrous monolith composites exhibit such beneficial properties as enhanced strength, corrosion resistance, thermal shock resistance and thermal cycling tolerance.
摘要:
Cement materials useful in dental and medical fields with improved mechanical properties is described. The cement material includes fluoroaluminosilicate powder and poly(acrylic acid) liquid. Biocompatible oxide powders are further included resulting in improved mechanical properties of maximum strength, rigidity and toughness. Variations of the cement material resulting in improved mechanical properties include the concentration of poly(acrylic acid) liquid, and combining the fluoroaluminosilicate powder with different biocompatible oxide powders. Useful oxide powders include hydroxyapatite powders, titanium oxide, zirconium oxide, aluminum oxide, and silica-containing e-glass powder. Preferably, about 10 vol. % of total amount of oxide powders is used to obtain optimum improvements. The total amount can be based on incorporation of a single or a combination of selected oxide powders. Titanium oxide and aluminum oxide improve toughness; titanium oxide also increases strength, and zirconium oxide enhances rigidity.