12 results about "Oriented crystal" patented technology

The application discloses a kind of directional crystal mould shell automatic detection cleaning system.In the application, by transient air pressure excitation and multi-scale wavelet domain digital speckle correlation detection, the micro crack identification ability is identified from surface opening defect to sub-surface strain anomaly stage, which significantly improves the detection sensitivity of hidden cracks and wall thickness thinning defects, and replaces artificial visual experience determination with full-field strain cloud quantification grading, which significantly reduces the missed detection rate and the quality risk caused by human error. Strain-cleanness dual-factor fusion evaluation simultaneously completes the judgment of structural integrity and internal cavity cleanliness at the same station, improving the completeness and automation of defect evaluation, reducing the drag of batch offline sampling and chemical permeation operation on production rhythm, and eliminating the need for fluorescent penetrant immersion and cleaning process with transient pulse excitation method, which improves the single-piece detection rhythm and reduces the cost of hazardous chemicals procurement, storage and waste liquid treatment.

The invention discloses a transparent conductive film with a hardness gradient composite structure and a flexible electronic device, and relates to the technical field of flexible electronics. The transparent conductive thin film comprises a flexible substrate, a gradient buffer layer and a metal oxide conductive layer, and the gradient buffer layer forms a hardness gradient which is gradually increased from the flexible substrate to the metal oxide conductive layer; the gradient buffer layer takes methane, silane and nitrous oxide as gas sources and is prepared by adopting a PECVD (Plasma Enhanced Chemical Vapor Deposition) process, and in the deposition process, the flow of the methane is configured to be linearly decreased, and the flow of the silane and the nitrous oxide is configured to be linearly increased; according to the invention, the gradient buffer layer effectively obstructs water vapor and organic volatile matters released by the flexible substrate, the hardness gradient of the gradient buffer layer promotes the formation of a metal oxide highly oriented crystal structure, and the interface stress is improved; the prepared transparent conductive film has the remarkable advantages of low defect density, good conductivity, high bending resistance and good long-term stability.

The invention belongs to the field of carbon fiber composite materials, and discloses a lightweight superconductive carbon fiber composite cable and a preparation method thereof, the cable is composed of a carbon fiber bundle layer, a multifunctional composite coating, a superconductive functional layer, an insulating layer, a shielding layer and a protective layer in sequence; the multifunctional composite coating is prepared from 60 to 65 parts of a polyamide acid precursor, 8 to 12 parts of 4-aminopropyltrimethoxysilane, 1 to 2 parts of glutaraldehyde, 3 to 5 parts of graphene nanosheets and 15 to 20 parts of a YBaCuOx precursor; a YBaCuOx ceramic layer with oriented crystals and continuous micro-channel cooling is obtained on the surface of the composite coating in situ by the superconductive functional layer through a pre-sintering, calcining and annealing cycle process combining sol-gel deposition and supercritical COdrying; the prepared cable has the advantages of high critical current density, zero resistance loss, excellent thermal-mechanical stability and extremely low self weight, and is suitable for the fields of high-frequency and long-distance lossless power transmission and low-temperature magnetic resonance.

The utility model aims to provide a piezoelectric crystal processing orientation clamp, which is used for orienting the end face of a crystal and is characterized by comprising an orientation base, a clamp, an adjusting bolt, a bolt sleeve and a nylon sheet. The adjusting bolt is installed on the clamp through a screw hole, the bolt sleeve is installed on the front end face of the adjusting bolt, the nylon piece wraps the crystal and is placed in the clamp, the crystal is clamped and fixed through the adjusting bolt, and the crystal is flatly placed on an X-ray orientation device with an orientation base. The angle of an X-ray transmitting tube and the angle of an X-ray receiving tube are adjusted according to the diffraction theta angle value of the end face of the crystal needing to be orientated, the deflection angle of the end face of the crystal can be adjusted by rotating the adjusting bolt according to the diffraction theta angle value of the end face of the crystal tested by the X-ray, and the crystal end face orientation can be completed on the clamp by utilizing the clamp. And secondary orientation and gluing operation can be omitted, the processing efficiency is improved, and the operation difficulty is reduced.

In a packaging bag (10) including multilayer films for packaging (5) including a heat-sealable resin layer (3) on a surface and formed by bonding two of the heat-sealable resin layers (3) of the multilayer films for packaging (5), oriented crystals are present in a seal portion (7) formed by bonding the heat-sealable resin layers (3).

A substrate, an electronic device, and a module are provided. The substrate provided by embodiments includes a carrier substrate formed from a polycrystalline material having a main support surface, where an observation region on the main support surface or on any transverse interface parallel to the main support surface contains (101)-oriented crystal grains, and a proportion of the (101)-oriented crystal grains in the observation region is 7% to 20% of a total number of grains in the observation region, and where the observation region measures 150 μm×150 μm.

The application belongs to the technical field of perovskite solar cells, and particularly relates to a two-dimensional perovskite vertically-grown solar cell and a preparation method thereof. The solar cell comprises, from bottom to top, a substrate layer, an electron transport layer, a perovskite absorption layer, a hole transport layer and a metal top electrode layer. The electron transport layer comprises a tin dioxide film and tin dioxide nanoparticles, and the tin dioxide nanoparticles are arranged on the side of the perovskite absorption layer of the tin dioxide film. The perovskite absorption layer comprises a two-dimensional perovskite material layer and a three-dimensional perovskite material layer, the two-dimensional perovskite material layer is in contact with the tin dioxide nanoparticles, and the three-dimensional perovskite material layer is in contact with the hole transport layer. The rough surface of the tin dioxide nanoparticles, the two-dimensional perovskite material layer and the three-dimensional perovskite material layer realize vertically-oriented crystal growth, reduce the existence of grain boundaries, improve the diffusion length and migration efficiency of carriers, and thus improve the photoelectric conversion efficiency.

Provided is a biaxially oriented polypropylene film that has high stiffness and can easily retain a bag shape when made into a packaging bag even if the film is made thinner, and at the same time, that can maintain water vapor barrier properties even if the film is made thinner, and has few wrinkles in and around the sealed portion when heat-sealed to make a packaging body. The biaxially oriented polypropylene film satisfies the following (1) and (2): (1) a half width of a peak derived from an oriented crystal in a width direction in angular dependency of a (110) plane of polypropyleneα-type crystal obtained by wide-angle X-ray diffraction measurement is 26° or smaller; (2) the ratio of (III) to the total of a crystalline component (I), a restrained amorphous component (II), and an unrestrained amorphous component (III) classified by pulse NMR according to solid-echo method is 7% or lower.

An ultra-high thermal-conductivity diamond is provided. The ultra-high thermal-conductivity diamond is polycrystalline diamond with a highly oriented crystals along <110> or <100> direction. It has a diameter of ≥100 mm in linear dimension and a thickness of ≥300 m, a thermal conductivity of ≥1800 W / (m·K) at 298K, and at least one surface with Ra≤10 nm, and further includes one or more of the following features: a content of nitrogen impurity ≤100 ppb, a dielectric constant ≥5.4 a dielectric loss tangent tanδ≤6×10−5, a volume resistivity ≥1×1011 Ωm, and a breakdown voltage ≥1000 V. The method for synthesizing the ultra-high thermal-conductivity diamond includes: providing a substrate for the diamond growth and a microwave plasma reactor, and performing the epitaxial growth of the ultra-high thermal-conductivity diamond on the substrate surface by using the reactor.

This invention discloses a gold-based gas diffusion electrode and its preparation method for the electrochemical synthesis of hydrogen peroxide, belonging to the field of electrochemical catalysis and synthesis technology. The gold-based gas diffusion electrode comprises a polyethylene film substrate and a gold catalyst layer supported on the substrate surface. The gold catalyst layer is formed in situ by magnetron sputtering and has a crystal structure with gold {200} crystal planes as the main exposed or predominantly oriented crystal planes. By controlling the sputtering deposition conditions, gold layer thickness, and interface structure, a gas diffusion electrode with low gold loading, high oxygen transport efficiency, and high two-electron oxygen reduction selectivity can be obtained. When used for the oxygen reduction electrosynthesis of hydrogen peroxide, this electrode can achieve high hydrogen peroxide selectivity, mass activity, and operational stability with relatively low amounts of noble metals. The preparation method of this invention is simple, requires no complex post-processing or additional binders, and is suitable for the electrochemical synthesis of hydrogen peroxide in acidic, neutral, or alkaline electrolyte systems.

The invention relates to the field of semiconductor materials, in particular to a preparation method of a c-axis oriented crystal IGZO film. According to the preparation method of the c-axis orientation crystal IGZO thin film, atomic layer deposition equipment is utilized, the GaO layer is formed through deposition firstly, then the ZnO layer is formed through deposition, and then the InO layer is formed through deposition, accurate interlayer covering can be achieved, and under the condition that additional process treatment is not needed, the thickness of the thin film can be reduced. The proportion of Zn / (In + Ga + Zn) can be accurately controlled by controlling technological parameters (such as the source bottle temperature, the introduction time, the gas flow and the cycle index of a zinc source) in the deposition process, and then the crystallinity and the electrical property of IGZO are improved.

The present invention provides a substrate and printed circuit board containing a nano-twin metal layer that can easily accommodate fine pitches such as microbumps and offer superior reliability. [Solution] The present invention relates to a substrate comprising a substrate, a seed layer disposed on the substrate, and a nanotwin metal layer disposed on the seed layer, wherein the seed layer comprises a randomly oriented crystal structure, a crystal structure preferentially oriented on the (200) plane and / or a crystal structure preferentially oriented on the (220) plane, and a printed circuit board formed using the same.