CN109569435A - A kind of high-temperature high-pressure synthetic cavity - Google Patents
A kind of high-temperature high-pressure synthetic cavity Download PDFInfo
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- CN109569435A CN109569435A CN201811542365.1A CN201811542365A CN109569435A CN 109569435 A CN109569435 A CN 109569435A CN 201811542365 A CN201811542365 A CN 201811542365A CN 109569435 A CN109569435 A CN 109569435A
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- cavity
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- pressure
- oxide layer
- magnesium oxide
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- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims abstract description 57
- 239000000395 magnesium oxide Substances 0.000 claims abstract description 50
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 claims abstract description 42
- 238000010438 heat treatment Methods 0.000 claims description 39
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 claims description 15
- MCMNRKCIXSYSNV-UHFFFAOYSA-N ZrO2 Inorganic materials O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 claims description 10
- 229910000831 Steel Inorganic materials 0.000 claims description 7
- 239000010959 steel Substances 0.000 claims description 7
- 229910052582 BN Inorganic materials 0.000 claims description 5
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 claims description 5
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 claims description 5
- 229910052726 zirconium Inorganic materials 0.000 claims description 5
- 229910001928 zirconium oxide Inorganic materials 0.000 claims description 5
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims description 4
- 229910052750 molybdenum Inorganic materials 0.000 claims description 4
- 239000011733 molybdenum Substances 0.000 claims description 4
- 229910052758 niobium Inorganic materials 0.000 claims description 4
- 239000010955 niobium Substances 0.000 claims description 4
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 claims description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 3
- 229910002804 graphite Inorganic materials 0.000 claims description 3
- 239000010439 graphite Substances 0.000 claims description 3
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 claims description 3
- 238000007789 sealing Methods 0.000 abstract description 8
- 230000005540 biological transmission Effects 0.000 abstract description 7
- 238000006386 neutralization reaction Methods 0.000 abstract description 5
- 238000009792 diffusion process Methods 0.000 abstract description 4
- 239000002131 composite material Substances 0.000 abstract description 3
- 238000004321 preservation Methods 0.000 abstract description 3
- 239000000463 material Substances 0.000 description 9
- 238000000034 method Methods 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 4
- 238000009413 insulation Methods 0.000 description 4
- 238000003786 synthesis reaction Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 206010008469 Chest discomfort Diseases 0.000 description 2
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910052749 magnesium Inorganic materials 0.000 description 2
- 239000011777 magnesium Substances 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 239000007770 graphite material Substances 0.000 description 1
- 239000012761 high-performance material Substances 0.000 description 1
- 238000001727 in vivo Methods 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
Classifications
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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
- B01J3/062—Processes using ultra-high pressure, e.g. for the formation of diamonds; Apparatus therefor, e.g. moulds or dies characterised by the composition of the materials to be processed
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Thermal Insulation (AREA)
- Thermotherapy And Cooling Therapy Devices (AREA)
Abstract
The invention discloses a kind of high-temperature high-pressure synthetic cavities, including two semi-cavities, opposite fasten of two semi-cavities forms cavity, the semi-cavity is cuboid, the semi-cavity is made of pyrophillite, through-hole is provided at the center of the upper and lower surfaces of the semi-cavity, each face of remaining of the semi-cavity is inlaid with magnesium oxide layer, is provided with high temperature components in the through-hole.Magnesium oxide layer is embedded on pyrophillite by the present invention, form the composite block component that pyrophillite is combined with magnesium oxide layer, pyrophillite, which makes component under high pressure, has good sealing performance, and magnesia has relatively high Bulk modulus relative to pyrophillite, use magnesia as transmission medium, the pressure of top hammer can be effectively set to be transmitted to inside cavity, so that inside cavity pressure be made to reach higher level.High temperature components have good Heat preservation performance, guarantee that the collection neutralization of heat prevents heat diffusion to top hammer.
Description
Technical field
The present invention relates to super-hard compound material technical fields, more particularly to a kind of high-temperature high-pressure synthetic cavity.
Background technique
Diamond, cubic boron nitride, other superhard and super-hard compound material synthesis mostly use cubic hinge press, cubic apparatus
6 top hammers surround a cubic shaped, can place the transmission medium cavity of corresponding size.When cubic hinge press works, 6
Top hammer acts on cube transmission medium and portion generates high pressure in the cavity.In loading procedure, part transmission medium is by crowded
Pressure, is distributed in medium between 6 top hammers and forms sealing edge at 12 sides of cube.External load power a part passes through top hammer
Face acts directly on transmission medium, and high pressure is generated in high pressure chest；Another part acts on sealing border region, passes through sealing edge
The internal friction of material and its frictional force between the outer surface of top hammer collectively form the sealing to high pressure chest.People are exactly logical
Cross high-tension apparatus and synthetic cavity generate high pressure, and assist a kind of maximum conditions of heating generation materials synthesis --- high pressure is high
Temperature.
The product of high quality and high performance material need higher synthesis pressure and more stable temperature environment.Pressure side
Face, people have invented many methods to improve the pressure in production inside synthetic cavity, have kept the inside cavity pressure of production steady
It is scheduled on 6GPa or so.The method for improving inside cavity pressure is divided to two kinds: 1, improving the performance of equipment；2, improve the knot of synthetic cavity
Structure.The method for improving equipment performance has: expanding the cylinder diameter of cubic apparatus, the area for reducing top hammer etc.；Improve the structure of synthetic cavity
Method mainly have: the material etc. for taking compress cell, adding pre-sealed side, changing assembling internal component.But in production,
Press cylinder diameter be expanded to a timing can not further expansion, top hammer reduce to a certain extent when can also reach itself stress limit,
It is easy to split hammer, cause damages；Compress cell is taken, the modes such as sealing edge is added and also brings increased costs, production not to production
The problems such as stablizing.In terms of temperature: exothermic material takes resistivity high and is not easy compressed material, currently, the graphite material used
Material is easily compressed under high pressure.
Summary of the invention
The object of the present invention is to provide a kind of high-temperature high-pressure synthetic cavities, to solve the above-mentioned problems of the prior art,
Make to form high temperature and high pressure in cavity.
To achieve the above object, the present invention provides following schemes:
The present invention provides a kind of high-temperature high-pressure synthetic cavity, including two semi-cavities, two semi-cavities are opposite to be detained
Conjunction forms cavity, and the semi-cavity is cuboid, and the semi-cavity is made of pyrophillite, and the upper surface of the semi-cavity is under
Through-hole is provided at the center on surface, each face of remaining of the semi-cavity is inlaid with magnesium oxide layer, is provided with height in the through-hole
Warm component.
Preferably, the high temperature components include the shielded-plate tube circumferentially set gradually from inside to outside along the through-hole, etc. pressure pipes,
Heating tube and heat-insulated pipe, the shielded-plate tube both ends are provided with shielding piece, and the pressure pipes such as described both ends are provided with equal tablettings, the heating
Pipe both ends are provided with heating sheet, and the heat-insulated pipe both ends are provided with adiabatic ring, and the adiabatic ring is along the axial outer of the through-hole
Side is provided with conductive sheet, and the conductive sheet is provided with steel bowl along the axial outside of the through-hole.
Preferably, the shielded-plate tube is hexagonal boron nitride pipe, and the shielding piece is molybdenum cup, niobium cup or zirconium cup, the shielding
Pipe and the shielding piece are with a thickness of 0.5-2mm.
Preferably, the pressure pipes such as described are zirconium dioxide pipe, and the equal tablettings are zirconium dioxide piece, pressure pipes such as described and described
Equal tablettings with a thickness of 1-5mm, the content of zirconium dioxide is 5-30% in the pressure pipes such as described and the equal tablettings.
Preferably, the heating tube and the heating sheet are made of graphite, the thickness of the heating tube and the heating sheet
Degree is 0.5-3mm.
Preferably, the heating tube and the heating sheet are made of tantalum foil, the thickness of the heating tube and the heating sheet
Degree is 0.01-0.2mm.
Preferably, the heat-insulated pipe and the adiabatic ring are made of zirconium oxide, the heat-insulated pipe and the adiabatic ring
With a thickness of 1-3mm.
Preferably, the length of the semi-cavity and width are a, a height of a/2 of the semi-cavity, the upper surface of the semi-cavity
Size with lower surface is a × a, and the size in each face of remaining of the semi-cavity is a × a/2；The upper surface of the magnesium oxide layer,
Left side, right side to the surface of the adjacent semi-cavity minimum range be g, the ㎜ of 3 ㎜≤g≤20；The magnesium oxide layer
Be embedded in the semi-cavity with a thickness of d, the ㎜ of 5 ㎜≤d≤20；The position that each face of semi-cavity is overlapped with the magnesium oxide layer
Pyrophillite is with a thickness of e, the ㎜ of 0 ㎜≤e≤5.
Preferably, the lower end surface of the magnesium oxide layer and the lower surface of the semi-cavity are flush, the magnesium oxide layer
The right side and vertical side of upper surface and horizontal direction, the left side of the magnesium oxide layer and vertical direction, the magnesium oxide layer
Angled to institute is θ, and 0 °≤θ≤30 °；The length of the lateral surface of the magnesium oxide layer and the wide length for being respectively greater than medial surface and
It is wide.
Preferably, the lower surface of two semi-cavities is affixed.
The present invention achieves following technical effect compared with the existing technology:
Magnesium oxide layer is embedded on pyrophillite by the present invention, forms the composite block group that pyrophillite is combined with magnesium oxide layer
Part, pyrophillite make component under high pressure and have good sealing performance, and magnesia have relative to pyrophillite it is relatively high
Bulk modulus, use magnesia as transmission medium, so that the pressure of top hammer is transmitted to inside cavity, to make chamber
Body internal pressure reaches higher level.High temperature components have good Heat preservation performance, guarantee that the collection neutralization of heat prevents
Heat diffusion is to top hammer.
Detailed description of the invention
It in order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, below will be to institute in embodiment
Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the invention
Example, for those of ordinary skill in the art, without creative efforts, can also obtain according to these attached drawings
Obtain other attached drawings.
Fig. 1 is the schematic diagram of high-temperature high-pressure synthetic cavity of the invention；
Fig. 2 is the explosive view of high-temperature high-pressure synthetic cavity of the invention；
Fig. 3 is the semi-cavity schematic diagram in the present invention；
Fig. 4 is the semi-cavity schematic cross-section in the present invention；
Wherein: 1- semi-cavity, 2- magnesium oxide layer, 3- heat-insulated pipe, 4- heating tube, the pressure pipes such as 5-, 6- shielded-plate tube, 7- shielding
Piece, the tablettings such as 8-, 9- heating sheet, 10- adiabatic ring, 11- conductive sheet, 12- steel bowl.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art under the premise of not making the creative labor it is obtained it is all its
His embodiment, shall fall within the protection scope of the present invention.
The object of the present invention is to provide a kind of high-temperature high-pressure synthetic cavities, of the existing technology to solve the problems, such as, make chamber
High temperature and high pressure is formed in vivo.
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, with reference to the accompanying drawing and specific real
Applying mode, the present invention is described in further detail.
Embodiment one
It is as Figure 1-Figure 4: present embodiments provide a kind of high-temperature high-pressure synthetic cavity, including two semi-cavities 1, two
Opposite fasten of semi-cavity 1 forms cavity, and semi-cavity 1 is cuboid, and semi-cavity 1 is made of pyrophillite, the upper surface of semi-cavity 1
Be provided with through-hole at the center of lower surface, the diameter of through-hole is b, and b=40 ㎜, each face of remaining of semi-cavity 1 is inlaid with oxidation
Magnesium layer 2 is provided with high temperature components in through-hole.High temperature components include along through-hole circumferentially set gradually from inside to outside shielded-plate tube 6, etc.
Pressure pipe 5, heating tube 4 and heat-insulated pipe 3, shielding piece 7 is provided on the inside of the both ends of shielded-plate tube 6, and shielded-plate tube 6 is hexagonal boron nitride
Pipe, shielding piece 7 are molybdenum cup, niobium cup or zirconium cup, and the size of shielded-plate tube 6 isShielding piece 7 size beEtc. equal tablettings 8 are provided on the inside of the both ends of pressure pipes 5, etc. pressure pipes 5 be zirconium dioxide pipe, waiting tablettings 8 is two
Zirconium oxide piece, etc. the sizes of pressure pipes 5 beThe size of equal tablettings 8 isEtc. pressure pipes 5
Content with zirconium dioxide in equal tablettings 8 is 5-30%.Heating sheet 9,4 He of heating tube are provided on the inside of the both ends of heating tube 4
Heating sheet 9 is made of graphite, and the size of heating tube 4 is The size of heating sheet 9 isAdiabatic ring 10 is provided on the inside of the both ends of heat-insulated pipe 3, heat-insulated pipe 3 and adiabatic ring 10 use zirconium oxide system
At the size of heat-insulated pipe 3 is The size of adiabatic ring 10 isHeat-insulated pipe 3 and insulation
Ring 10 makes cavity have good thermal insulation property, guarantees that the collection neutralization of heat prevents heat diffusion to top hammer, and can be conductive.Absolutely
Hot ring 10 is provided with conductive sheet 11 along the axial outside of through-hole, and the size of conductive sheet 11 isConductive sheet 11 is along logical
The axial outside in hole is provided with steel bowl 12, and the size of steel bowl 12 is
In the present embodiment, the length and width of semi-cavity 1 are a, a=60mm, a height of a/2 of semi-cavity 1, semi-cavity 1 it is upper
The size of surface and lower surface is a × a, and the size in each face of remaining of semi-cavity 1 is a × a/2；Upper surface, a left side for magnesium oxide layer 2
End face, right side to the surface of adjacent semi-cavity 1 minimum range be g, g=10 ㎜；Magnesium oxide layer 2 is embedded in semi-cavity 1
With a thickness of d, d=10 ㎜；The pyrophillite for the position that each face of semi-cavity 1 is overlapped with magnesium oxide layer 2 is with a thickness of e, e=0 ㎜.Magnesia
The lower end surface of layer 2 and the lower surface of semi-cavity 1 are flush, a left side for the upper surface of magnesium oxide layer 2 and horizontal direction, magnesium oxide layer 2
It is θ that end face is angled with vertical direction, the right side of magnesium oxide layer 2 and vertical direction institute, and 0 °≤θ≤30 °；Magnesium oxide layer 2
Lateral surface length and the wide length and width for being respectively greater than medial surface.A length of 2f of the lateral surface of magnesium oxide layer 2, width f, f=20
㎜, f+g=a/2.The lower surface of two semi-cavities 1 is affixed to form high-temperature high-pressure synthetic cavity, and top hammer synthesizes chamber to high temperature and pressure
Six surfaces of body apply pressure.
Embodiment two
A kind of high-temperature high-pressure synthetic cavity, including two semi-cavities 1 are present embodiments provided, two semi-cavities 1 are opposite to detain
Conjunction forms cavity, and semi-cavity 1 is cuboid, and semi-cavity 1 is made of pyrophillite, in the upper and lower surfaces of semi-cavity 1
It is provided with through-hole at the heart, the diameter of through-hole is b, b=55 ㎜, and each face of remaining of semi-cavity 1 is inlaid with magnesium oxide layer 2, in through-hole
It is provided with high temperature components.High temperature components include along through-hole circumferentially set gradually from inside to outside shielded-plate tube 6, etc. pressure pipes 5, heating tube
4 and heat-insulated pipe 3, shielding piece 7 is provided on the inside of the both ends of shielded-plate tube 6, and shielded-plate tube 6 is hexagonal boron nitride pipe, and shielding piece 7 is molybdenum
Cup, niobium cup or zirconium cup, the size of shielded-plate tube 6 areShielding piece 7 size beIt is isobaric
Equal tablettings 8 are provided on the inside of the both ends of pipe 5, etc. pressure pipes 5 be zirconium dioxide pipe, waiting tablettings 8 is zirconium dioxide piece, etc. pressure pipes 5
Size beThe size of equal tablettings 8 isEtc. titanium dioxide in pressure pipes 5 and equal tablettings 8
The content of zirconium is 5-30%.Heating sheet 9 is provided on the inside of the both ends of heating tube 4, heating tube 4 and heating sheet 9 use tantalum foil system
At, heating tube 4 and heating sheet 9 with a thickness of 0.1mm.Adiabatic ring 10,3 He of heat-insulated pipe are provided on the inside of the both ends of heat-insulated pipe 3
Adiabatic ring 10 is made of zirconium oxide, and the size of heat-insulated pipe 3 isThe size of adiabatic ring 10 isHeat-insulated pipe 3 and adiabatic ring 10 make cavity have good thermal insulation property, guarantee that the collection neutralization of heat prevents heat
It is diffused into top hammer, and can be conductive.Adiabatic ring 10 is provided with conductive sheet 11, the size of conductive sheet 11 along the axial outside of through-hole
ForConductive sheet 11 is provided with steel bowl 12 along the axial outside of through-hole, and the size of steel bowl 12 is
In the present embodiment, the length and width of semi-cavity 1 are a, a=75mm, a height of a/2 of semi-cavity 1, semi-cavity 1 it is upper
The size of surface and lower surface is a × a, and the size in each face of remaining of semi-cavity 1 is a × a/2；Upper surface, a left side for magnesium oxide layer 2
End face, right side to the surface of adjacent semi-cavity 1 minimum range be g, g=10 ㎜；Magnesium oxide layer 2 is embedded in semi-cavity 1
With a thickness of d, d=8 ㎜；The pyrophillite for the position that each face of semi-cavity 1 is overlapped with magnesium oxide layer 2 is with a thickness of e, e=4.5 ㎜.Oxidation
The lower end surface of magnesium layer 2 and the lower surface of semi-cavity 1 are flush, the upper surface of magnesium oxide layer 2 and horizontal direction, magnesium oxide layer 2
It is θ that left side is angled with vertical direction, the right side of magnesium oxide layer 2 and vertical direction institute, and 0 °≤θ≤30 °；Magnesium oxide layer
The length of 2 lateral surface and the wide length and width for being respectively greater than medial surface.A length of 2f of the lateral surface of magnesium oxide layer 2, width f, f=
27.5 ㎜, f+g=a/2.The lower surface of two semi-cavities 1 is affixed to form high-temperature high-pressure synthetic cavity, and top hammer closes high temperature and pressure
Apply pressure at six surfaces of cavity.
Magnesium oxide layer 2 is embedded on pyrophillite by the present embodiment, forms the composite block that pyrophillite is combined with magnesium oxide layer 2
Body component, pyrophillite, which makes cavity under high pressure, has good sealing performance, and magnesia has relatively relative to pyrophillite
Higher Bulk modulus uses magnesia as transmission medium, so that the pressure of top hammer is transmitted to inside cavity, thus
Cavity internal pressure is set to reach 8-10GPa.High temperature components have good Heat preservation performance, lock heat caused by exothermic material
In high temperature and pressure inside cavity not to external radiation, heat loss is reduced, enables sample in relatively high and more stable temperature environment
Middle synthesis.In addition, thermal insulation material also functions to the effect of insulation, reduction is transmitted to hard alloy top hammer heat, reduces hammer consumption.Guarantee
The collection neutralization of heat prevents heat diffusion to top hammer.
Apply that a specific example illustrates the principle and implementation of the invention in this specification, above embodiments
Explanation be merely used to help understand method and its core concept of the invention；At the same time, for those skilled in the art,
According to the thought of the present invention, there will be changes in the specific implementation manner and application range.In conclusion in this specification
Appearance should not be construed as limiting the invention.
Claims (10)
1. a kind of high-temperature high-pressure synthetic cavity, it is characterised in that: including two semi-cavities, two semi-cavities are opposite to fasten shape
At cavity, the semi-cavity is cuboid, and the semi-cavity is made of pyrophillite, the upper and lower surfaces of the semi-cavity
Center at be provided with through-hole, each face of remaining of the semi-cavity is inlaid with magnesium oxide layer, high temperature group is provided in the through-hole
Part.
2. high-temperature high-pressure synthetic cavity according to claim 1, it is characterised in that: the high temperature components include along described logical
Hole circumferentially set gradually from inside to outside shielded-plate tube, etc. pressure pipes, heating tube and heat-insulated pipe, the shielded-plate tube both ends be provided with shielding
Piece, the pressure pipes such as described both ends are provided with equal tablettings, and the heating tube both ends are provided with heating sheet, and the heat-insulated pipe both ends are provided with
Adiabatic ring, the adiabatic ring are provided with conductive sheet, axis of the conductive sheet along the through-hole along the axial outside of the through-hole
To outside be provided with steel bowl.
3. high-temperature high-pressure synthetic cavity according to claim 2, it is characterised in that: the shielded-plate tube is hexagonal boron nitride
Pipe, the shielding piece be molybdenum cup, niobium cup or zirconium cup, the shielded-plate tube and it is described shield piece with a thickness of 0.5-2mm.
4. high-temperature high-pressure synthetic cavity according to claim 2, it is characterised in that: the pressure pipes such as described are zirconium dioxide pipe,
The equal tablettings are zirconium dioxide piece, the pressure pipes such as described and the equal tablettings with a thickness of 1-5mm, pressure pipes such as described and described etc.
The content of zirconium dioxide is 5-30% in tabletting.
5. high-temperature high-pressure synthetic cavity according to claim 2, it is characterised in that: the heating tube and the heating sheet are adopted
Be made of graphite, the heating tube and the heating sheet with a thickness of 0.5-3mm.
6. high-temperature high-pressure synthetic cavity according to claim 2, it is characterised in that: the heating tube and the heating sheet are adopted
Be made of tantalum foil, the heating tube and the heating sheet with a thickness of 0.01-0.2mm.
7. high-temperature high-pressure synthetic cavity according to claim 2, it is characterised in that: the heat-insulated pipe and the adiabatic ring are adopted
Be made of zirconium oxide, the heat-insulated pipe and the adiabatic ring with a thickness of 1-3mm.
8. high-temperature high-pressure synthetic cavity according to claim 1, it is characterised in that: the length and width of the semi-cavity are a,
A height of a/2 of the semi-cavity, the size of the upper and lower surfaces of the semi-cavity are a × a, and remaining of the semi-cavity is each
The size in face is a × a/2；Upper surface, left side, the right side to the surface of the adjacent semi-cavity of the magnesium oxide layer
Minimum range is g, the ㎜ of 3 ㎜≤g≤20；The magnesium oxide layer be embedded in the semi-cavity with a thickness of d, the ㎜ of 5 ㎜≤d≤20；Institute
The pyrophillite for the position that each face of semi-cavity is overlapped with the magnesium oxide layer is stated with a thickness of e, the ㎜ of 0 ㎜≤e≤5.
9. high-temperature high-pressure synthetic cavity according to claim 1, it is characterised in that: the lower end surface of the magnesium oxide layer and institute
The lower surface for stating semi-cavity is flush, the upper surface of the magnesium oxide layer and horizontal direction, the magnesium oxide layer left side with
Vertical direction, the right side of the magnesium oxide layer and vertical direction institute it is angled be θ, 0 °≤θ≤30 °；The magnesium oxide layer
Lateral surface length and the wide length and width for being respectively greater than medial surface.
10. high-temperature high-pressure synthetic cavity according to claim 1, it is characterised in that: the lower surface of two semi-cavities
It is affixed.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111545132A (en) * | 2020-05-11 | 2020-08-18 | 中国有色桂林矿产地质研究院有限公司 | Ultrahigh pressure synthesis cavity |
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| CN115041096A (en) * | 2022-06-07 | 2022-09-13 | 中国工程物理研究院核物理与化学研究所 | High-temperature and high-pressure device of double-sided jacking machine |
| CN115041096B (en) * | 2022-06-07 | 2023-08-15 | 中国工程物理研究院核物理与化学研究所 | High-temperature high-pressure device of two-sided press |
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