CN109289704A - A kind of high pressure chest device in minitype high voltage experimental provision - Google Patents
A kind of high pressure chest device in minitype high voltage experimental provision Download PDFInfo
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- CN109289704A CN109289704A CN201811213086.0A CN201811213086A CN109289704A CN 109289704 A CN109289704 A CN 109289704A CN 201811213086 A CN201811213086 A CN 201811213086A CN 109289704 A CN109289704 A CN 109289704A
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- aluminium oxide
- tungsten carbide
- pressure
- gasket
- oxide pressure
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J3/00—Processes of utilising sub-atmospheric or super-atmospheric pressure to effect chemical or physical change of matter; Apparatus therefor
- B01J3/04—Pressure vessels, e.g. autoclaves
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J3/00—Processes of utilising sub-atmospheric or super-atmospheric pressure to effect chemical or physical change of matter; Apparatus therefor
- B01J3/06—Processes using ultra-high pressure, e.g. for the formation of diamonds; Apparatus therefor, e.g. moulds or dies
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J3/00—Processes of utilising sub-atmospheric or super-atmospheric pressure to effect chemical or physical change of matter; Apparatus therefor
- B01J3/06—Processes using ultra-high pressure, e.g. for the formation of diamonds; Apparatus therefor, e.g. moulds or dies
- B01J3/065—Presses for the formation of diamonds or boronitrides
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- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Crystals, And After-Treatments Of Crystals (AREA)
Abstract
A kind of high pressure chest device in minitype high voltage experimental provision, it is bored including upper aluminium oxide pressure, lower aluminium oxide presses brill, gasket, sample cavity, upper tungsten carbide pedestal, lower tungsten carbide pedestal, molybdenum resistance wire, thermocouple, power supply, the upper aluminium oxide pressure is bored is equipped with gasket between lower aluminium oxide pressure brill, and the center of gasket is equipped with sample cavity；The upper aluminium oxide pressure is bored and lower aluminium oxide pressure bores and is connected respectively with upper tungsten carbide pedestal and lower tungsten carbide pedestal, is equipped with molybdenum resistance wire on upper tungsten carbide pedestal and lower tungsten carbide pedestal；The upper aluminium oxide pressure is bored and lower aluminium oxide pressure bores side and is equipped with thermocouple, and thermocouple is connected by electric wire with power supply.The present invention can substantially reduce the cost of high pressure chest in the selection of the material of critical component anvil, be more advantageous to and carry out High-Voltage Experimentation in wide range of areas.
Description
Technical field
Type of the present invention is related to a kind of a kind of dress of the high pressure chest in High-Voltage Experimentation device more particularly to minitype high voltage experimental provision
It sets.
Background technique
For pressure as thermodynamic parameter basic in physics system, structure and performance to substance have vital shadow
It rings.By physics basic theories it is found that structure, property and the state of substance can occur significantly to change under high pressure effect, this
The physical property that a little variations will lead to substance changes.Various elements can show different valence states under high pressure, mutually
Between the chemical reactions of some novelties can occur.The progress of high pressure research and the development of high-tension apparatus are inseparable, high-tension apparatus
It is divided into large-scale pressure apparatus and small sized super-pressure device.Large-scale pressure apparatus mainly includes belt type press, four sides high pressure apparatus, six
Face high pressure apparatus and split-sphere apparatus, are mainly used for diamond synthesis.Using level-one pressure chamber, large-scale pressure apparatus institute
Obtainable highest chamber pressure is lower than 12Gpa.When using polycrystalline diamond as mutli-anvil apparatus, obtainable limit chamber
Body pressure can get higher chamber pressure compared to large-scale pressure apparatus, small sized super-pressure device.The gold generally used now
The pressure that hard rock opposed anvils device (Diamond Anvil Cell, DAC) can be obtained 550Gpa in 1986, has been more than the earth's core
Pressure (350Gpa).In addition, minitype high voltage device can be surveyed with X-ray diffraction, neutron diffraction, Raman spectrum etc. more conveniently
Method for testing combines, and carries out the research of substance performance change under high pressure.
DAC is the small sized super-pressure device to grow up earliest, which starts from the 1950s.1958,
Valkenburg etc. recognizes that sample cavity can be observed by diamond top anvil, to establish DAC technique；And pass through by
DAC is placed under petrographic microscope, completes the observation of high pressure crystal form for the first time.In the early 1970s, having found ruby
Fluorescence R line with pressure rise and there is a phenomenon where linear displacements, surveyed to establish easy, rapid, reliable ruby fluorescence
Pressure method；The DAC pressure transmission " using 4: 1 methanol/ethanol mixed liquor as diamond transmission medium " is determined through experimentation to be situated between
Matter technology, the technology efficiently reduce the distribution gradient of cavity temperature and pressure, realize the protection to diamond anvil face.This
Outside, researcher also invented metal packing technology, and DAC pressure chamber is enable to obtain more uniform chamber pressure distribution；It is logical
It crosses and combines laser technology with DAC technique, the cavity of DAC device is made to have reached the experimental temperature of 3000K or more.Passing through will
DAC technique is combined with physical measurement technology, extends the scope of experiment of DAC device.
DAC device is divided into 3 parts, i.e. diamond anvil, support pressurized part and external mechanical devices；Wherein, Buddha's warrior attendant
Stone anvil structure is substantially the same, and pressurized part is supported then to differ greatly with external mechanical devices.Diamond anvil is by a pair of of gold
Hard rock opposed anvils and gasket composition, apply pressure by squeezing the sample being placed in gasket；It supports pressurized part
It is completed by piston, the piston cylinder assembled is fixed on plug in support by external mechanical devices, pressurization
Shi Shouxian precession spring bolt group, by cross bar will pressure amplify several times after be applied on piston, then through cage chair make lower anvil to
Upper extruding finally makes the pressure rise of gasket centre bore sample room.
DAC device is using diamond as anvil, and diamond is substance most hard in the world, it has the Mohs' hardness to be
10 outstanding property, it is all incomparable as anvil either optical property or hardness, but unique disadvantage is exactly price
Valuableness, 1 pair experiment in the good diamond of moral character at least want 10,000 yuans.And it is summarized for a long time in scientific research and finds do not have
The experimental implementation person for having received prolonged exercise, without enough experiences during completing to diamond anvil centering leveling, or
Not enough in the case where carefulness, anvil face of the diamond to top is not leveled as required completely, is just easy to that diamond is made to pressurize
During fragmentation.But debugging diamond it is entirely on the center with leveling and be that the work to require long practice is not being passed through
Just debugged using diamond in the case where testing, have very maximum probability can damage diamond diamond once have it is a little damaged, just
It can not continue High-Voltage Experimentation, and this also can not just recycle diamond.
Summary of the invention
Purpose of the invention is to overcome the shortcomings in the prior art, to provide in a kind of minitype high voltage experimental provision
High pressure chest device.
A kind of high pressure chest device in minitype high voltage experimental provision, including upper aluminium oxide pressure is bored, lower aluminium oxide pressure is bored, pad
Piece, sample cavity, upper tungsten carbide pedestal, lower tungsten carbide pedestal, molybdenum resistance wire, thermocouple, power supply, the upper aluminium oxide pressure bore and under
Aluminium oxide pressure is equipped with gasket between boring, and the center of gasket is equipped with sample cavity；The upper aluminium oxide pressure is bored and lower aluminium oxide pressure is bored and divided
It is not connected with upper tungsten carbide pedestal and lower tungsten carbide pedestal, is equipped with molybdenum resistance on upper tungsten carbide pedestal and lower tungsten carbide pedestal
Silk；The upper aluminium oxide pressure is bored and lower aluminium oxide pressure bores side and is equipped with thermocouple, and thermocouple is connected by electric wire with power supply.
The gasket is latten(-tin).
The gasket is phosphorus bronze sheet.
Beneficial effect by adopting the above technical scheme is:
The present invention presses the jewel for boring and being formed by the crystallization of aluminium oxide (Al2O3).It is scarlet mixed with the aluminium oxide color of crome metal, generally
Referred to as ruby；And blue or the not aluminium oxide of color, it generally can all be included into sapphire classification.The Mohs of aluminium oxide is hard
Degree is 9, very close diamond.And colourless white stone does not also completely influence optical correlation test, it may be said that is one
The substitute of kind extraordinary diamond anvil, white stone anvil important is its price is not high, 1 pair of white stone anvil
Price is 800~1000 yuan, and can be recycled, and breakage rate is not high.Compared with the price of diamond, white stone anvil is
It is economical and economical.But there are also problems for white stone, and the pressure that it can bear is not high, and highest also only has 1~2Gpa.For general
High-Voltage Experimentation, such pressure is enough.
The hardness of traditional diamond anvil is very high, is the steel disc of model T301 with the matching used gasket of diamond,
With good ductility and moderate hardness.If gasket cannot continue to use T301 steel when using white stone as anvil
Piece is easily damaged in white stone pre-compaction process because of the excessive high hardness of T301 steel disc, it is difficult to its use of arranging in pairs or groups.According to the feelings
Condition has found the gasket that cooperation white stone anvil uses, i.e. copper sheet.Copper sheet is more suitable for white stone of arranging in pairs or groups with respect to the hardness of steel disc.
It here, should be using brass or phosphorus bronze sheet as gasket it is however emphasized that if hardness is relatively soft with fine copper.
The present invention heats cavity using molybdenum resistance wire, after cavity heating, can preferably carry out the reality of high temperature and pressure
It tests, wants that temperature can be adjusted in real time in heating process.
Detailed description of the invention
Fig. 1 is the high pressure chest apparatus structure schematic diagram in minitype high voltage experimental provision of the present invention.
In figure: the upper aluminium oxide pressure of 1- is bored, aluminium oxide presses brill, 3- gasket, 4- sample cavity, the upper tungsten carbide pedestal of 5-, 6- under 2-
Lower tungsten carbide pedestal, 7- molybdenum resistance wire, 8- thermocouple, 9- power supply.
Specific embodiment
The present invention is described in further detail below in conjunction with the accompanying drawings:
A kind of high pressure chest device in minitype high voltage experimental provision, it includes that upper aluminium oxide pressure bores 1, lower aluminium oxide as shown in Figure 1:
Pressure bores 2, gasket 3, sample cavity 4, upper tungsten carbide pedestal 5, lower tungsten carbide pedestal 6, molybdenum resistance wire 7, thermocouple 8, power supply 9, described
Upper aluminium oxide pressure bore 1 and lower aluminium oxide pressure bore and be equipped with gasket 3 between 2, gasket 3 is latten(-tin) or phosphorus bronze sheet, brass or phosphor-copper pad
Centre bore on piece 3 constitutes completely enclosed sample cavity, and upper and lower anvil can be in sample during pressing brass or phosphor-copper gasket 3
Product chamber obtains high pressure, when carrying out high temperature and pressure experiment, can choose good transmission medium such as methanol in sample cavity 4: ethyl alcohol=
The mixed liquor of 4:1, silicone oil etc. can reduce the distribution gradient of temperature and pressure in this way, play the role of effective protection anvil face.Pad
The center of piece 3 is equipped with sample cavity 4；The upper aluminium oxide pressure bore 1 and lower aluminium oxide pressure bore 2 respectively with upper tungsten carbide pedestal 5 and under
Tungsten carbide pedestal 6 is connected, and upper tungsten carbide pedestal 5 and lower tungsten carbide pedestal 6 have then connect paired samples with external transmission device
Pressurization；Molybdenum resistance wire 7 is equipped on upper tungsten carbide pedestal 5 and lower tungsten carbide pedestal 6；The upper aluminium oxide pressure bores 1 and lower oxidation
Aluminium pressure bores 2 sides and is equipped with thermocouple 8, and thermocouple 8 is connected by electric wire with power supply 9.And upper tungsten carbide pedestal 5 and lower tungsten carbide
Pedestal 6 completes the heating of cavity by the molybdenum resistance wire 5 outside upper tungsten carbide pedestal 5 and lower tungsten carbide pedestal 6, and temperature passes through
Upper tungsten carbide pedestal 5 and lower tungsten carbide pedestal 6 are transmitted to entire cavity, are acquired, are passed through in real time by thermocouple 8 to the control of temperature
The adjusting of power supply 9 is completed.
Claims (3)
1. the high pressure chest device in a kind of minitype high voltage experimental provision, it is characterised in that: it include upper aluminium oxide pressure bore (1), under
Aluminium oxide pressure bore (2), gasket (3), sample cavity (4), upper tungsten carbide pedestal (5), lower tungsten carbide pedestal (6), molybdenum resistance wire (7),
Thermocouple (8), power supply (9), the upper aluminium oxide pressure bores (1) and lower aluminium oxide pressure bores and is equipped with gasket (3) between (2), gasket (3)
Center be equipped with sample cavity (4)；The upper aluminium oxide pressure bore (1) and lower aluminium oxide pressure brill (2) respectively with upper tungsten carbide pedestal (5)
It is connected with lower tungsten carbide pedestal (6), is equipped with molybdenum resistance wire (7) on upper tungsten carbide pedestal (5) and lower tungsten carbide pedestal (6)；Institute
It states aluminium oxide pressure brill (1) and lower aluminium oxide pressure is bored (2) side and is equipped with thermocouple (8), thermocouple (8) passes through electric wire and power supply
(9) it is connected.
2. the high pressure chest device in minitype high voltage experimental provision according to claim 1, it is characterised in that: the gasket (3)
For latten(-tin).
3. the high pressure chest device in minitype high voltage experimental provision according to claim 1, it is characterised in that: the gasket (3)
For phosphorus bronze sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811213086.0A CN109289704A (en) | 2018-10-18 | 2018-10-18 | A kind of high pressure chest device in minitype high voltage experimental provision |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811213086.0A CN109289704A (en) | 2018-10-18 | 2018-10-18 | A kind of high pressure chest device in minitype high voltage experimental provision |
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| CN109289704A true CN109289704A (en) | 2019-02-01 |
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| CN201811213086.0A Pending CN109289704A (en) | 2018-10-18 | 2018-10-18 | A kind of high pressure chest device in minitype high voltage experimental provision |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109966993A (en) * | 2019-04-12 | 2019-07-05 | 中国科学院深海科学与工程研究所 | A kind of diamond anvil cell and its mechanical driving device |
| CN110286060A (en) * | 2019-06-05 | 2019-09-27 | 郑州轻工业学院 | The equipment and measuring method of fluid density are measured under a kind of condition of high voltage |
| JP7052969B1 (en) * | 2021-05-26 | 2022-04-12 | 隆太郎 和田 | High-temperature and high-pressure processing equipment by pressurizing the liquid medium |
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| US3150413A (en) * | 1962-12-13 | 1964-09-29 | Barogenics Inc | High pressure presses and components thereof |
| CN101074984A (en) * | 2007-06-22 | 2007-11-21 | 吉林大学 | Method and apparatus for high-voltage Hall effect |
| CN101078703A (en) * | 2007-06-22 | 2007-11-28 | 吉林大学 | Diamond anvil for electrical quantity in-situ measurement and its production method |
| CN101566543A (en) * | 2009-05-26 | 2009-10-28 | 吉林大学 | High temperature and high voltage experimental device for heating gasket |
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2018
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| US3150413A (en) * | 1962-12-13 | 1964-09-29 | Barogenics Inc | High pressure presses and components thereof |
| CN101074984A (en) * | 2007-06-22 | 2007-11-21 | 吉林大学 | Method and apparatus for high-voltage Hall effect |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109966993A (en) * | 2019-04-12 | 2019-07-05 | 中国科学院深海科学与工程研究所 | A kind of diamond anvil cell and its mechanical driving device |
| CN110286060A (en) * | 2019-06-05 | 2019-09-27 | 郑州轻工业学院 | The equipment and measuring method of fluid density are measured under a kind of condition of high voltage |
| JP7052969B1 (en) * | 2021-05-26 | 2022-04-12 | 隆太郎 和田 | High-temperature and high-pressure processing equipment by pressurizing the liquid medium |
| WO2022249893A1 (en) * | 2021-05-26 | 2022-12-01 | 隆太郎 和田 | High-temperature high-pressure processing device using liquid medium pressurization |
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Application publication date: 20190201 |