An external skeleton steel wire pressurized diamond anvil device

Abstract

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.

Description

Technical Field

[0001] This invention relates to an external steel wire pressure-type diamond anvil cell device, belonging to the field of high pressure scientific research. Background Technology

[0002] A diamond press is a static compression device that can provide ultra-high pressure. Its main working parts consist of a pair of diamond anvils and a sealing gasket. During use, the sample, pressure-transmitting medium, and pressure calibrator are placed within the pressure chamber formed by the diamond anvils and sealing gasket. Pressure is applied via a pressure bolt. Due to the very small area of ​​the diamond anvils, extremely high pressure can be obtained within the pressure chamber, allowing for the study of material properties under ultra-high pressure. X-ray transmission imaging is an important method for characterizing materials under ultra-high pressure conditions; however, limitations imposed by existing DAC structures restrict the maximum imaging angle to only 152°.

[0003] The combination of nanoscale transmission X-ray microscopy and a diamond anvil cell (DAC) for high-resolution, non-destructive three-dimensional imaging of materials under extreme conditions is an important tool in high-pressure physics research. For X-ray computed tomography (CT), the more angles the sample is imaged from, the more complete the information obtained, which is more beneficial to the research. Because existing diamond anvil cells use a bolt-on pressing method, sufficiently robust support columns are required. These columns block X-rays and hinder imaging within a certain angle range. Although researchers have improved the diamond anvil cell structure to achieve a maximum viewing angle of 152°, a 28° imaging angle is still missing, which is detrimental to research. However, due to the limitations of the support column structure, the imaging angle cannot be further expanded.

[0004] This invention solves the problem of insufficient X-ray transmission imaging angle for samples in diamond-coated presses. The invention changes the press's pressurization method to fine steel wire tensioning, eliminating the need for a support column structure. The steel wire diameter is on the order of millimeters, maximizing the press's imaging angle range. Summary of the Invention

[0005] The purpose of this invention is to solve the problems existing in the prior art and to provide an external skeleton steel wire pressure type diamond anvil device.

[0006] The objective of this invention is achieved through the following technical solution:

[0007] A steel wire pressure-type diamond anvil cell device with an outer frame includes an upper outer frame, pressure screws, pressure washers, a movable sleeve, a key, a steel wire set screw, an upper diamond mounting platform fixing screw, an upper pressure platform, an upper diamond mounting platform, a pressure wire, an upper diamond anvil, a lower diamond anvil, a lower diamond mounting platform, a pressure wire set screw, a lower diamond mounting platform fixing screw, a lower pressure platform, and a lower outer frame. An upper pressure platform is located at the center of the upper outer frame. The side of the upper pressure platform is fixed to the upper diamond mounting platform located at its center by upper diamond mounting platform fixing bolts. The pressure screws and pressure washers on the upper part of the upper outer frame are connected to the upper part of the movable sleeve inside the upper pressure platform. The upper pressure platform and the movable sleeve are connected by a key via a threaded connection. A lower pressure platform is located at the center of the lower outer frame. The lower pressure platform is fixed to the lower diamond mounting platform located at the center of the lower pressure platform by a lower diamond mounting platform fixing screw. The upper and lower outer frames are opposite to each other and fixedly connected. The upper diamond anvil under the upper diamond mounting platform and the lower diamond anvil on the lower diamond mounting platform are opposite to each other. One end of the pressure wire is fixed at the lower part of the movable sleeve inside the upper pressure platform and is fixed by a wire set screw on the side of the movable sleeve. A fixing hole for the pressure wire is provided at the position of the extension line of the central axis of the lower pressure platform and the movable sleeve. The other end of the pressure wire is fixed in the fixing hole of the lower pressure platform and is fixed by a pressure wire set screw on the side of the lower pressure platform.

[0008] The present invention provides an outer frame steel wire pressure type diamond anvil device, wherein the upper outer frame and the lower outer frame are connected by a shaft hole fit, and the upper outer frame and the lower outer frame are chamfered rectangular structures.

[0009] This invention discloses an external steel wire pressure-type diamond anvil cell device, wherein the upper diamond mounting platform and the lower diamond mounting platform are each fixed and adjusted by four upper diamond mounting platform fixing screws and four lower diamond mounting platform fixing screws.

[0010] The present invention discloses an external frame steel wire pressure type diamond anvil device, wherein the pressure steel wire is fixed by a set screw, the lower pressure platform is pressed into the lower pressure platform by a lower diamond mounting platform fixing screw, and the upper pressure platform is connected to the moving sleeve by two staggered steel wire set screws.

[0011] This invention discloses an external skeleton steel wire pressure-type diamond anvil cell device, which replaces the press press method with fine steel wire tensioning and pressure application, eliminating the need for a support column structure. The steel wire diameter is on the order of millimeters, maximizing the press's imaging angle range. Current solutions all use a support column structure, with a maximum imaging angle of 152°. This invention, using a steel wire tensioning and pressure application method, achieves an imaging angle exceeding 170°. Currently, there are no other alternative solutions that can achieve the objectives of this invention. Attached Figure Description

[0012] Figure 1 This is a top view of the outer skeleton steel wire pressure type diamond anvil device of the present invention.

[0013] Figure 2 This is a cross-sectional view (AA) of the external skeleton steel wire pressure type diamond anvil device of the present invention.

[0014] Figure 3 This is an exploded view of the outer skeleton steel wire pressure type diamond anvil device of the present invention.

[0015] Figure 4 This is a side view of the upper outer frame of the diamond anvil device with outer frame steel wire pressure.

[0016] Figure 5 This is a top view of the upper outer frame of the diamond anvil device with outer frame steel wire pressure.

[0017] Figure 6 This is a side view of the lower outer frame in the outer frame steel wire pressure type diamond anvil device of the present invention.

[0018] Figure 7 This is a bottom view of the lower outer frame of the diamond anvil device with outer frame steel wire pressure.

[0019] Figure 8 This is a cross-sectional view of the mechanical pressing mechanism in the outer skeleton steel wire pressure type diamond anvil device of the present invention.

[0020] Figure 9 This is a top view of the mechanical pressing mechanism in the outer skeleton steel wire pressure-type diamond anvil device of the present invention.

[0021] In the attached diagram, the following symbols are used: 1 is the upper outer frame; 2 is the pressure screw; 3 is the pressure washer; 4 is the movable sleeve; 5 is the key; 6 is the wire set screw; 7 is the upper diamond mounting platform fixing screw; 8 is the upper pressure platform; 9 is the upper diamond mounting platform; 10 is the pressure wire; 11 is the upper diamond anvil; 12 is the lower diamond anvil; 13 is the lower diamond mounting platform; 14 is the pressure wire set screw; 15 is the lower diamond mounting platform fixing screw; 16 is the lower pressure platform; and 17 is the lower outer frame. Detailed Implementation

[0022] The present invention will be further described in detail below with reference to the accompanying drawings: This embodiment is implemented under the premise of the technical solution of the present invention, and detailed implementation methods are given, but the protection scope of the present invention is not limited to the following embodiments.

[0023] Example 1: As Figure 1-9As shown in the figure, the diamond pressing device involving an outer frame steel wire pressure type consists of three parts: an outer support frame, a mechanical pressing mechanism, and a diamond pressing anvil. The overall structure is as follows: Figure 1-2 As shown, the exploded view is as follows Figure 3 As shown.

[0024] When pressurizing, tightening the pressurizing screw 2 causes the tightening wire 10 to be pulled taut, which in turn causes the lower pressurizing platform 16 to move upward. The lower diamond mounting platform 13 will move upward with the lower pressurizing platform. Since the diamond anvils are in contact with each other, the upward movement of the diamond mounting platform will increase the pressure of the diamond anvils, thus creating a high-pressure environment in the high-pressure chamber.

[0025] I. External Support Frame

[0026] Because pressure is transmitted using steel wire, the component cannot withstand torque before the wire is taut. Therefore, the entire component must be limited before pressure loading is complete to prevent relative rotation. This patent employs an external support frame to accomplish this function. The external support frame consists of upper and lower parts, connected by a shaft-hole fit, such as... Figure 4-7 As shown.

[0027] Both the upper and lower skeletons have experimental pre-drilled holes (central circular holes) at the bottom center for diffraction and transmission imaging. The upper skeleton has four pressure holes (four circular holes evenly distributed around the experimental pre-drilled holes), each corresponding to a pressure bolt. Both the upper and lower skeletons use a chamfered rectangular structure and four rectangular protrusions (to prevent the pressure platform from rotating during pressurization) to prevent the pressure platform from rotating within the skeleton.

[0028] The upper and lower outer frames serve as a stabilizing device during pressurization. Since only four pressurizing steel wires contact the diamond in the upper and lower pressurizing components, the device can only remain stable when the wires are taut and the force is evenly distributed. Therefore, the outer frames are needed before pressurization to prevent the upper pressurizing component from falling. After pressurization, the upper and lower frames are removed.

[0029] II. Mechanical Pressurization Mechanism

[0030] The diamond pressure mechanism consists of an upper pressure platform, a lower pressure platform, pressure screws, pressure washers, a movable sleeve, a key, steel wire, steel wire fixing screws, and diamond mounting platform fixing screws. Figure 8-9 As shown.

[0031] Each of the upper and lower pressure platforms has four fixing screws, used to fix and adjust the position of the diamond mounting platform.

[0032] The steel wire is fixed with set screws. The lower pressure plate is pressed into the pressure plate with one set screw. The upper pressure plate is connected to the sleeve with two staggered set screws.

[0033] The pressurizing mechanism consists of a pressurizing screw, a washer, a sleeve, a key, and an upper pressurizing platform. During pressurization, the pressurizing screw is rotated, and the washer restricts the axial displacement of the screw, allowing it to only rotate. The sleeve is connected to the upper pressurizing platform by a key, restricting the sleeve's rotational movement and allowing it to move only axially. This connection method transforms the rotational movement of the pressurizing screw into the axial movement of the sleeve, tightening the pressurizing wire to generate high-pressure chamber pressure.

[0034] III. Diamond anvil

[0035] The diamond anvil mechanism is the same as the existing diamond press device, with the diamond fixed on the diamond mounting platform.

[0036] The above description is merely a preferred embodiment of the present invention. These specific embodiments are different implementations based on the overall concept of the present invention, and the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A diamond anvil cell device with an outer frame steel wire pressure, characterized in that, The outer frame steel wire pressure type diamond anvil device includes an upper outer frame (1), a pressure screw (2), a pressure washer (3), a movable sleeve (4), a key (5), a steel wire set screw (6), an upper diamond mounting platform fixing screw (7), an upper pressure platform (8), an upper diamond mounting platform (9), a pressure steel wire (10), an upper diamond anvil (11), a lower diamond anvil (12), a lower diamond mounting platform (13), a pressure steel wire set screw (14), and a lower diamond mounting platform. The upper outer frame (1) has a mounting platform fixing screw (15), a lower pressure platform (16), and a lower outer frame (17). An upper pressure platform (8) is located at the center of the upper outer frame (1). The side of the upper pressure platform (8) is fixed to the upper diamond mounting platform (9) located at the center of the upper pressure platform (8) by an upper diamond mounting platform fixing screw (7). The pressure screw (2) and pressure washer (3) on the upper part of the upper outer frame (1) are threadedly connected to the upper part of the movable sleeve (4) inside the upper pressure platform (8). The upper pressure platform (8) and... The movable sleeves (4) are connected by a key (5); a lower pressure platform (16) is provided at the center of the lower outer frame (17), and the lower pressure platform (16) is fixed to the lower diamond mounting platform (13) located at the center of the lower pressure platform (16) by a lower diamond mounting platform fixing screw (15). The upper outer frame (1) and the lower outer frame (17) are opposite to each other and fixedly connected. The upper diamond anvil (11) under the upper diamond mounting platform (9) and the lower diamond anvil (13) on the lower diamond mounting platform (13) are connected by a key (5); the lower pressure platform (16) is provided at the center of the lower outer frame (17), and the lower diamond anvil (11) under the upper diamond mounting platform (9) and the lower diamond mounting platform (13) are connected by a key (5); the lower pressure platform (16) is provided at the center of the lower outer frame (17), and the lower diamond mounting platform (13) is ... 12) Relative arrangement; one end of the pressure wire (10) is fixed at the lower part of the movable sleeve (4) in the upper pressure platform (8) and fixed by the wire set screw (6) on the side of the movable sleeve (4). The lower pressure platform (16) is provided with a fixing hole for the pressure wire (10) at the position of the extension line of the central axis of the movable sleeve (4). The other end of the pressure wire (10) is fixed in the fixing hole of the lower pressure platform (16) and fixed by the wire set screw (14) on the side of the lower pressure platform (16).

2. The outer frame steel wire pressure type diamond anvil cell device according to claim 1, characterized in that, The upper outer frame (1) and the lower outer frame (17) are fitted with shaft holes, and the upper outer frame (1) and the lower outer frame (17) adopt a chamfered rectangular structure.

3. The outer frame steel wire pressure type diamond anvil cell device according to claim 1, characterized in that, The upper diamond mounting platform (9) and the lower diamond mounting platform (13) are fixed and adjusted by four upper diamond mounting platform fixing screws (7) and lower diamond mounting platform fixing screws (15).

4. The outer frame steel wire pressure type diamond anvil cell device according to claim 1, characterized in that, The pressure wire (10) is fixed with a set screw. The lower pressure platform (16) is pressed into the lower pressure platform (16) with a lower diamond mounting plate fixing screw (15). The upper pressure platform (8) is connected to the moving sleeve (4) with two staggered wire set screws (6).

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