Pressurizing device of hydrostatic pressure
A technology of hydrostatic pressure and pressurization device, which is applied in the direction of measuring device, using stable tension/pressure testing material strength, instruments, etc., which can solve the difficulty of leveling and aligning the diamond anvil surface, difficult to place cryostat, diamond Damage and other problems, to achieve the effect of simple structure, small size and easy operation
Inactive Publication Date: 2016-09-07
INST OF SEMICONDUCTORS - CHINESE ACAD OF SCI
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Problems solved by technology
[0003] The existing diamond-to-anvil pressure device has a large volume and complex structure, which is difficult to place in a cryostat, and the leveling and alignment of the upper and lower diamond anvil surfaces is very difficult, which may easily cause damage to the diamond
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[0020] see figure 1 and figure 2 As shown, the present invention provides a pressurizing device for hydrostatic pressure, comprising:
[0021] A cylinder 7, the opening of the cylinder 7 faces downward, and the center of the upper bottom of the cylinder 7 has an optical window 11, the optical window 11 is tapered, and is used as an incident window for excitation light, and is also a collection window for measuring sample signals ;
[0022] An upper base 3, which is located at the upper bottom of the cylinder 7, the two sides of the upper base 3 extending to the outer wall of the cylinder 7 have two pairs of upper adjustment screws 5 for adjusting the upper base 3 left, right, front, post position. The center of the upper base 3 also has a tapered opening corresponding to the optical window 11 of the cylinder 7, which is also a window for incident excitation light and sample signal collection;
[0023] A first diamond 1, which is located at the center of the upper base 3 i...
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The invention provides a pressurizing device of hydrostatic pressure. The pressurizing device comprises a cylinder, an upper base, a first diamond, a second diamond, a gasket, a piston and a lower base, wherein an opening of the cylinder is formed downwards; an optical window for emitting exciting light and collecting a measured sample signal is at the center of the upper bottom of the cylinder; the upper base is located at the upper bottom in the cylinder; the first diamond is located at the center of the upper base in the cylinder; the second diamond is located under the first diamond; the gasket is located between the first diamond and the second diamond and is in tight contact with the first diamond and the second diamond to form a sample chamber for storing a sample and a ruby; the piston is in sliding match with the inner diameter of the cylinder; and the lower base is similar to a T shape, is located at the lower end of the second diamond and is used for supporting the second diamond. The pressurizing device has the advantages of small size, simple structure, convenience for adjusting an anvil face and capability of being put in a low-temperature optical thermostat.
Description
technical field [0001] The invention relates to hydrostatic pressure pressurization technology, which is a pressurizing device capable of applying hydrostatic pressure under room temperature and low temperature environment. Background technique [0002] As an effective experimental method for studying semiconductor materials, hydrostatic pressure technology is widely used in the research fields of optical properties, electrical properties, and phase transitions of semiconductors. Applying hydrostatic pressure requires a diamond-to-anvil pressurization device. The principle of the diamond counter-anvil device is to place the sample in a pressure chamber formed by two opposite diamonds and spacers whose upper and lower anvil surfaces are parallel, fill the pressure chamber with a pressure transmission medium, and push the two diamonds to make them mutually When extruding, through the pressure transmission medium, a hydrostatic pressure will be generated on the sample. The di...
Claims
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Login to View More IPC IPC(8): G01N3/02G01N3/18
CPCG01N3/02G01N3/18
Inventor 丁琨窦秀明孙宝权
Owner INST OF SEMICONDUCTORS - CHINESE ACAD OF SCI