Patent classifications
C23C18/1245
NANOPARTICLES AND SYSTEMS AND METHODS FOR SYNTHESIZING NANOPARTICLES THROUGH THERMAL SHOCK
Systems and methods of synthesizing nanoparticles on substrates using rapid, high temperature thermal shock. A method involves depositing micro-sized particles or salt precursors on a substrate, and applying a rapid, high temperature thermal pulse or shock to the micro-sized particles or the salt precursors and the substrate to cause the micro-sized particles or the salt precursors to become nanoparticles on the substrate. A system may include a rotatable member that receives a roll of a substrate sheet having micro-sized particles or salt precursors; a motor that rotates the rotatable member so as to unroll consecutive portions of the substrate sheet from the roll; and a thermal energy source that applies a short, high temperature thermal shock to consecutive portions of the substrate sheet that are unrolled from the roll by rotating the first rotatable member. Some systems and methods produce nanoparticles on existing substrate. The nanoparticles may be metallic, ceramic, inorganic, semiconductor, or compound nanoparticles. The substrate may be a carbon-based substrate, a conducting substrate, or a non-conducting substrate. The high temperature thermal shock process may be enabled by electrical Joule heating, microwave heating, thermal radiative heating, plasma heating, or laser heating.
PHOTOCATALYTIC COATING AND METHOD OF MAKING SAME
Described herein are methods for coating a substrate with a photocatalytic compound, and photocatalytic elements prepared by these methods.
METHOD FOR PRODUCING A COATING LAYER COATED ONTO THE INNER SURFACE OF A CONTAINER AND A CONTAINER OBTAINED WITH SUCH A METHOD
A method for producing a layer for coating the inner surface of a container and a glass or plastic container obtained by said method, wherein said container is suitable for containing products biocompatible with humans and/or animals. The method includes: forming a solution containing a solvent, water, a molecular precursor comprising alkoxy groups and an acid as a catalyst, mixing said solution to initiate hydrolysis and condensation, applying the resulting solution onto at least one portion of the inner surface of the container, while the solution is in the process of gelling, the resulting applied solution is then dried at a temperature for a predetermined time, before curing. The acid is citric acid, wherein said citric acid is at a concentration of less than 6 mol/l, and in that the solution comprises less than 1.5 units of precursor for each volume unit of acid.
Additive Manufacturing of Polymer Derived Ceramics
A layer by layer additive manufacturing system from liquid polymers for producing dense and defect free polymer-derived ceramic bodies of a three dimensional architecture.
Hybrid multilayer solar selective coating for high temperature solar thermal applications and a process for the preparation thereof
The present invention describes a hybrid multilayer solar selective coating having high thermal stability useful for high temperature solar thermal power generation. The hybrid multilayer solar selective coating of the present invention has been deposited using a novel combination of sputtering and sol-gel methods on metallic and non-metallic substrates, preferably on SS 304 and 321 with chrome interlayer. The hybrid multilayer solar selective coating of the present invention consists of stacks of Ti/chrome interlayer, aluminum titanium nitride (AlTiN), aluminum titanium oxynitride (AlTiON), aluminum titanium oxide (AlTiO) and organically modified silica (ormosil) layers. The chrome interlayer was deposited using an electroplating method, whereas, Ti, AlTiN, AlTiON and AlTiO layers were prepared using a four-cathode reactive unbalanced pulsed direct current magnetron sputtering technique. The ormosil layer was deposited using a sol-gel technique, which provides the enhanced absorptance and improved long term thermal stability in air and vacuum. The present invention provides a hybrid multilayer solar selective coating having absorptance >0.950, emittance <0.11 (SS substrate with chrome interlayer) and long term high thermal stability (in the order of 1000 hrs under cyclic heating conditions at 500° C. in air and 600° C. in vacuum). The hybrid multilayer solar selective coating of the present invention exhibits higher solar selectivity ratio in the order of 5-9 on metal and non-metal substrates. The hybrid multilayer solar selective absorber coating of the present invention has high oxidation resistance, stable microstructure, high adherence and graded composition particularly suitable for applications in concentrating collectors like evacuated receiver tubes and Fresnel receiver tubes useful for solar steam generation.
MULTI-FUNCTIONALIZED CARBON NANOTUBES
The present invention relates to a method of manufacturing coated carbon nanotubes, the method comprising the steps of: functionalizing the carbon nanotubes in a solvent comprising a silane polymer; coating the carbon nanotubes with a SiO.sub.2 layer; depositing metal catalyst particles on the SiO.sub.2 layer of the carbon nanotubes; and performing electroless plating to form an Ag coating on the SiO.sub.2 layer of the carbon nanotubes. The invention also relates Ag-coated CNTs, and to the use of Ag-coated CNTs as interconnects in a flexible electronic film.
Nanoparticles and systems and methods for synthesizing nanoparticles through thermal shock
Systems and methods of synthesizing nanoparticles on substrates using rapid, high temperature thermal shock. A method involves depositing micro-sized particles or salt precursors on a substrate, and applying a rapid, high temperature thermal shock to the micro-sized particles or the salt precursors to become nanoparticles on the substrate. A system may include a rotatable member that receives a roll of a substrate sheet having micro-sized particles or salt precursors; a motor that rotates the rotatable member so as to unroll the substrate; and a thermal energy source that applies a short, high temperature thermal shock to the substrate. The nanoparticles may be metallic, ceramic, inorganic, semiconductor, or compound nanoparticles. The substrate may be a carbon-based substrate, a conducting substrate, or a non-conducting substrate. The high temperature thermal shock process may be enabled by electrical Joule heating, microwave heating, thermal radiative heating, plasma heating, or laser heating.
SELECTIVE DEPOSITION OF METALS, METAL OXIDES, AND DIELECTRICS
Methods are provided for selectively depositing a material on a first surface of a substrate relative to a second, different surface of the substrate. The selectively deposited material can be, for example, a metal, metal oxide, or dielectric material.
Tungsten bronze thin films and method of making the same
The present disclosure relates to tungsten bronze thin films and method of making the same. Specifically, the present disclosure relates to a thin, homogeneous, highly conducting cubic tungsten bronze film with densely packed micron size particles and the process of making the film.
Aerogel laminate and thermal insulation material
A production method for an aerogel laminate includes a step of preparing a sol of producing a sol for forming an aerogel, an applying step of applying the sol obtained in the step of preparing a sol to a support having a heat ray reflective function or a heat ray absorbing function, and drying the sol to form an aerogel layer, an aging step of aging the aerogel layer obtained in the applying step, a washing step of washing the aged aerogel layer and performing solvent exchange, and a drying step of drying the aerogel layer washed in the washing step.