9 results about "Diamond anvil cell" patented technology

The application provides an exoskeleton steel wire pressurizing type diamond anvil cell device, and belongs to the field of high-pressure scientific research. The upper diamond press anvil of an upper diamond mounting table is oppositely arranged with the lower diamond press anvil of a lower diamond mounting table. One end of a pressurizing steel wire is fixed to the lower part of a moving sleeve in an upper pressurizing table and is fixed through a steel wire locking screw on the side of the moving sleeve. The other end of the pressurizing steel wire is fixed in a fixed hole of a lower pressurizing table and is fixed through a pressurizing steel wire locking screw on the side of the lower pressurizing table. The pressurizing mode of the press is changed to fine steel wire tensioning pressurizing, and the support column structure is cancelled. The diameter of the steel wire is in the millimeter level, and the imaging angle range of the press is maximally improved. The current scheme all adopts the support column structure, and the maximum imaging angle is 152°. The steel wire tensioning pressurizing mode is adopted in the application, the imaging angle exceeds 170°, and no other alternative scheme can complete the purpose of the application.

This application provides a testing device, assembly method, and electrical performance testing method for two-dimensional devices based on a diamond anvil cell, belonging to the field of high-voltage electrical transport measurement technology for two-dimensional materials. The two-dimensional device testing device includes a diamond anvil cell, a metal pad, an insulating part, and a two-dimensional device. The insulating part includes a first insulating part and a second insulating part. Second through holes are formed in the areas corresponding to the first through hole in both the first and second insulating parts. The inner walls of the two second through holes, the upper surface of the lower diamond anvil cell, and the lower surface of the upper diamond anvil cell together form a sample cavity. The two-dimensional device is housed within the sample cavity. The two-dimensional device includes a bottom grid, a first dielectric layer, an in-plane Hall electrode, a two-dimensional material, a second dielectric layer, and a top grid, stacked sequentially. This testing device can simultaneously control the grid voltage and pressure, thereby achieving the measurement of the electromagnetic transport characteristics of the two-dimensional material under the synergistic effect of the grid voltage and pressure.

The application relates to a method for preparing a high-brightness mixed fluorescent and phosphorescent white light-emitting IPA material, and belongs to the technical field of white light-emitting organic material preparation. The method comprises the following steps: taking a blue fluorescent emission dominated IPA as an initial material; pressurizing the initial sample to 16.0-23 GPa through a diamond anvil cell; and then discharging the diamond anvil cell to normal pressure to obtain a bright mixed fluorescent and phosphorescent white light-emitting IPA material. The IPA sample prepared through pressure engineering has high-brightness white light emission based on fluorescent and phosphorescent mixing, and the initial fluorescent and phosphorescent components of the IPA material are uneven. The preparation process is simple, the synthesis is at room temperature, the method is green and environment-friendly, and the method has high repeatability. The method greatly expands the selection range of the design of high-brightness white light-emitting materials.

The application relates to a device for electrode mask of nanometer thin film material in a diamond anvil cell and a use method thereof, and relates to the fields of mask plates and diamond anvil cell equipment, in particular to a device for electrode mask of nanometer thin film material in a diamond anvil cell and a use method thereof. The application aims to solve the technical problem that the preparation of nanometer thin film material electrodes in the existing diamond anvil cell is difficult. The device for electrode mask of nanometer thin film material in a diamond anvil cell is composed of a connecting plate, a diamond anvil cell, a metal frame, a positioning bolt, a vertical direction displacement table and a fixing bolt; the displacement of the diamond anvil cell in a horizontal plane and the up-down movement of the mask plate in the vertical direction are controlled, so that the mask plate and the thin-layer two-dimensional material can be precisely aligned in a three-dimensional space; in combination with the existing electron beam evaporation or thermal evaporation equipment, the nanometer thin film material can be conveniently electrode designed and prepared on the anvil surface of the diamond anvil cell.

This utility model discloses a diamond press hinge beam casting system, comprising: a core assembly molding system and a gating system. The core assembly molding system uses manual core box making, with partial covering using chromite sand. The core assembly includes multiple sets of outer cores, rod cores, and a central core. The outer skin uses a carbon dioxide ester hardened water glass sand process applied in a molding production line, employing a 3-box + 1-box combination. The gating system combines bottom casting and riser casting. The bottom casting uses a one-to-four reverse pouring method, and the riser casting uses a T-shaped tee method. This utility model meets the casting precision requirements of the product, reduces mold making costs, shortens the production cycle, and improves production efficiency.

The utility model discloses a kind of diamond anvil cell press cavity with visual online pressure marking superhigh pressure inflation equipment, including shell, the inside middle position of shell is provided with baffle, the inside below of shell is provided with inner frame, the inside of shell is provided with superhigh pressure operating assembly and superhigh pressure inflation assembly;Superhigh pressure operating assembly includes superhigh pressure container, superhigh pressure container includes shell, the front end of shell is provided with front end sealing mouth, the inside of shell is provided with diamond pressure cavity placement area, the rear end of shell is provided with flange sapphire window sealing area for optical measurement and imaging observation, superhigh pressure operating assembly further includes the pressure calibration and imaging system ruby pressure marking system for diamond pressure cavity in superhigh pressure container;By adopting electrical equipment combination, complete remote operation function, make user operation more safe;Visual cavity design is used, cooperate optical path imaging acquisition system, realize customer visual pressure marking function.

This invention relates to the field of ultra-high pressure physics experimental apparatus, and particularly to a three-faced diamond anvil cell and its design method. The anvil includes a central anvil face and sequentially connected first, second, and third inclined faces. Each inclined face has a radially increasing first to third diameter and a first to third inclined face angle, forming a gradient load-bearing transition zone. The design method includes: establishing a diamond-tungsten gasket coupled constitutive model; parametrically modeling the three-faced structure; performing finite element optimization with the goal of maximizing the pressure at the center of the sample chamber and constraints such as the maximum principal strain of the diamond as the basis; and determining the optimal geometric parameters. This invention breaks through the pressure bottleneck of approximately 400 GPa of traditional diamond anvil cells, achieving a static high pressure of 600 GPa, and reducing the risk of stress concentration and failure at the anvil face.