CN201269841Y - Intense magnetic field fluid metal diffusion apparatus - Google Patents
Intense magnetic field fluid metal diffusion apparatus Download PDFInfo
- Publication number
- CN201269841Y CN201269841Y CNU2008201546465U CN200820154646U CN201269841Y CN 201269841 Y CN201269841 Y CN 201269841Y CN U2008201546465 U CNU2008201546465 U CN U2008201546465U CN 200820154646 U CN200820154646 U CN 200820154646U CN 201269841 Y CN201269841 Y CN 201269841Y
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- boron nitride
- corundum
- diffusion
- stainless steel
- calandria
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Abstract
The utility model relates to a device for carrying out a liquid metal diffusion experiment in an intense magnetic field. The device comprises a stainless steel sealing cover, a stainless steel sealing ring, a quartz glass tube, a corundum cover, a corundum support chip, electrodes, a platinum rhodium heating strip, a corundum seat, a fluorine rubber sealing ring, a boron nitride furnace cover, a boron nitride soaking piece, a capillary tube, a diffusion couple, a bifilar boron nitride heating piece, a corundum tube, a gas inlet, a gas outlet and a thermocouple. When the diffusion experiment is carried out, the diffusion couple is put in the boron nitride heating piece; the system is sealed and vacuumized; then an experiment sample is heated to the temperature required by diffusion; after the diffusion is finished, heating is stopped; the experiment sample is cooled with highly pure argon gas; and subsequent analysis is carried out after the experiment sample is taken out. The device utilizes the magnetic field to inhibit the flowing of electrofluid so as to obtain a mass transfer process under the control of diffusion and acquire an accurate liquid metal diffusion coefficient.
Description
Technical field
The utility model is a kind of liquid metal disperser that uses under high-intensity magnetic field, belongs to the material property parameter measuring technical field.
Background technology
The diffusion of solute atoms is an important substance transmission course in the liquid metal, it affects solidified structure, many aspects in the material preparation processes such as crystal growth, the accurate coefficient of diffusion that obtains solute atoms in the liquid metal is for setting up the various theoretical models of liquid metal, and understanding various liquid metal phenomenons has very important meaning.Yet owing to inevitably have thermograde and concentration gradient in the melt, these factors can cause melt convection, thereby cause additional solute atoms diffusion.Because the solute atoms rate of propagation is very little, the existence of convection current can cause the coefficient of diffusion deviation very big, exactly because also there is not reliable experimental, for many years, the progress of liquid metal diffusion theory is very slow.Therefore, in order to reduce the convection current of liquid metal as much as possible, obtain accurate liquid metal coefficient of diffusion, a lot of diffusion experiments all carry out under the outer space microgravity environment, but this method cost is high, and experiment is subjected to great restriction.Magnetic field can suppress the motion of conductive fluid, this measurement for the liquid metal coefficient of diffusion provides a kind of new method, promptly utilize motion that high-intensity magnetic field suppresses conductive fluid reducing fluid motion, thereby obtain more accurate liquid metal coefficient of diffusion the solute atoms diffusion influence.
Summary of the invention
The purpose of this utility model provides a kind of device that carries out the liquid metal diffusion experiment under high-intensity magnetic field.
The technical scheme that realizes the utility model purpose is as follows:
A kind of high-intensity magnetic field liquid metal disperser, by stainless steel gland bonnet (1), stainless steel O-ring seal (2), quartz glass tube (3), corundum lid (4), corundum support chip (5), electrode (6), platinum rhodium heater strip (7), corundum base (8), air intake opening (9), viton seal ring (10), boron nitride bell (11), the equal hot body of boron nitride (12), kapillary (13), diffusion couple (14), double wrap line boron nitride calandria (15), alundum tube (16), gas outlet (17) and thermopair (18) are formed, it is characterized in that: viton seal ring (10) and stainless steel gland bonnet (1), stainless steel O-ring seal (2) and quartz glass tube (3) three closely contact, and constitute the seal cavity of package unit jointly; Corundum lid (4) presses corundum support chip (5); Center corundum support chip (5) with holes is vertically fixed alundum tube (16), and heating part and the diffusion couple (14) be made up of boron nitride lid (11), the equal hot body of boron nitride (12), kapillary (13), boron nitride calandria (15) place in the alundum tube (16); Boron nitride lid (11) covers the upper end of boron nitride calandria (15), and the equal hot body of boron nitride (12) places kapillary (13) two ends; The double wrap platinum rhodium heater strip (7) that is wrapped on the boron nitride calandria (15) links to each other with electrode (6); Electrode (6) passes corundum base (8); Thermopair (18) contacts with the equal hot body of boron nitride (12); Air intake opening (9) joins with high-purity argon gas, and gas outlet (17) join with vacuum pump.
When carrying out the liquid metal diffusion experiment, at first diffusion couple (14) is fixed in the boron nitride calandria (12), and by stainless steel gland bonnet (1), stainless steel O-ring seal (2), quartz glass tube (3) and viton seal ring (10) seal total system, close air intake opening (9), gas outlet (17) receive vacuum pump, are evacuated to 10
-3Pa.Electrode (6) is received on the direct supply, by thermopair (18) control temperature.Sample is warming up to needed diffusion temperature, allows diffusion couple (14) under the temperature and time of setting, spread.Open air intake opening (9) when finishing diffusion time, and gas outlet (17) pass to high-purity argon gas sample is cooled off.Take out sample at last and carry out constituent analysis.
Characteristics of the present utility model are: when adopting the long capillary method to carry out the liquid metal diffusion experiment, need the temperature of sample be heated to the diffusion temperature of setting in the short as far as possible time, insulation then; And the temperature of whole sample is kept evenly, and therefore, the equal hot body of the good boron nitride of thermal conductivity has been adopted at the diffusion couple two ends.The equal hot body of boron nitride has constituted a constant temperature chamber with the boron nitride calandria, has effectively reduced longitudinal temperature gradient interior between sample area.Simultaneously in order to improve temperature rate, the calandria size is as far as possible little, and thermal capacitance is little, heat up and rate of temperature fall just soon, so the internal diameter of boron nitride calandria is only than kapillary external diameter a little more greatly in this device.
Secondly, whole experiment device places kicker magnet, and the existence in magnetic field can effectively suppress metal bath because the convection current that thermograde and concentration gradient cause.But owing to be subjected to the restriction of kicker magnet work space and magnetic field homogeneity, diffusion couple length only is designed to 40mm.By the equal hot body of boron nitride, the corundum support chip, the corundum lid is fixed in the diffusion couple sample in the boron nitride calandria, has prevented that also the sample solution concentration that sample disturbs DIFFUSION TREATMENT to obtain in fusion process because of the variation of volume from distributing.
Once more, whole device is arranged in magnetic field, can be subjected to the acting force in magnetic field by the platinum rhodium heater strip of electric current, and the variation of heater strip electric current can produce induced current again, influence the transmission of atom in the liquid metal, so just must eliminate the influence of induced current, so, the boron nitride calandria adopts the design of double wrap line, and the double wrap line can be eliminated the influence of induced current to sample.In addition, the boron nitride calandria that twines platinum rhodium heater strip is put into alundum tube, can retrain moving of heater strip, also reduced scattering and disappearing of heat simultaneously, improved the efficiency of heating surface.
This device firing rate is fast, can in minutes sample be heated to 800～900 ℃, simultaneously, cooling rate is fast, this has obtained effective improvement for the liquid metal diffusion experiment because of the error that melts and process of setting brings, secondly, and the experimental provision convenient disassembly, repetition simple to operate, as to help testing.
Description of drawings
Fig. 1 is the utility model high-intensity magnetic field liquid metal disperser
Each digital code is expressed as follows among Fig. 1:
1. stainless steel gland bonnet 2. stainless steel O-ring seals 3. quartz glass tubes 4. corundum cover equal hot body 13. kapillaries of 5. corundum support chips, 6. electrodes, 7. platinum rhodium heater strips, 8. corundum bases, 9. air intake openings, 10. viton seal rings, 11. boron nitride bells, 12. boron nitride 14. diffusion couples 15. double wrap line boron nitride calandrias 16. alundum tubes 17. gas outlets 18. thermopairs
Embodiment
Below in conjunction with accompanying drawing the utility model is described in detail.
Referring to Fig. 1, the liquid metal disperser in the present embodiment: form by stainless steel gland bonnet (1), stainless steel O-ring seal (2), quartz glass tube (3), corundum lid (4), corundum support chip (5), electrode (6), platinum rhodium heater strip (7), corundum base (8), air intake opening (9), viton seal ring (10), boron nitride bell (11), the equal hot body of boron nitride (12), kapillary (13), diffusion couple (14), double wrap line boron nitride calandria (15), alundum tube (16), gas outlet (17) and thermopair (18); Viton seal ring (10) closely contacts with stainless steel gland bonnet (1), stainless steel O-ring seal (2) and quartz glass tube (3) three, and constitutes the seal cavity of package unit jointly; Corundum lid (4) presses corundum support chip (5); Center corundum support chip (5) with holes is vertically fixed alundum tube (16), and heating part and the diffusion couple (14) be made up of boron nitride lid (11), the equal hot body of boron nitride (12), kapillary (13), boron nitride calandria (15) place in the alundum tube (16); Boron nitride lid (11) covers the upper end of boron nitride calandria (15), and the equal hot body of boron nitride (12) places kapillary (13) two ends; The double wrap platinum rhodium heater strip (7) that is wrapped on the boron nitride calandria (15) links to each other with electrode (6); Electrode (6) passes corundum base (8); Thermopair (18) contacts with the equal hot body of boron nitride (12); Air intake opening (9) joins with high-purity argon gas, and gas outlet (17) join with vacuum pump.
When carrying out the liquid metal diffusion experiment, the kapillary (13) that diffusion couple (14) will be housed is earlier put into boron nitride calandria (15), and the equal hot body of boron nitride (12) is placed at the kapillary two ends, covers boron nitride lid (11) and corundum lid (4).With stainless steel gland bonnet (1), stainless steel O-ring seal (2), viton seal ring (10) and quartz glass tube (3) seal total system.Before the heating of boron nitride calandria, close air intake opening (9) earlier, gas outlet (17) are connected to vacuum pump, and total system is evacuated to 10
-3Pa.Electrode (6) connects direct supply and thermopair (15) is connected to programmed temperature control instrument, be warming up to needed temperature rapidly, the temperature insulation of setting then, after the temperature of setting is finished DIFFUSION TREATMENT, cut off the electricity supply, open air intake opening (9) and gas outlet (17), logical argon gas takes out diffusion couple (14) cooling fast at last and carries out constituent analysis with sample.
In the present embodiment, operating process is summarized as follows:
When utilizing this device to carry out diffusion experiment, the kapillary that the diffusion couple sample at first will be housed is put into boron nitride calandria, sealing system, vacuumize then, perfectly straight stream electrical heating is incubated the needed time in the temperature of setting then to needed temperature, powered-down, the ventilation cooling.Obtain the diffusion couple sample that finite concentration distributes.This device can be used for the diffusion experiment of liquid metal in the low temperature range.
Claims (1)
1, a kind of high-intensity magnetic field liquid metal disperser, by stainless steel gland bonnet (1), stainless steel O-ring seal (2), quartz glass tube (3), corundum lid (4), corundum support chip (5), electrode (6), platinum rhodium heater strip (7), corundum base (8), air intake opening (9), viton seal ring (10), boron nitride bell (11), the equal hot body of boron nitride (12), kapillary (13), diffusion couple (14), double wrap line boron nitride calandria (15), alundum tube (16), gas outlet (17) and thermopair (18) are formed, it is characterized in that: viton seal ring (10) and stainless steel gland bonnet (1), stainless steel O-ring seal (2) and quartz glass tube (3) three closely contact, and constitute the seal cavity of package unit jointly; Corundum lid (4) presses corundum support chip (5); Center corundum support chip (5) with holes is vertically fixed alundum tube (16), and heating part and the diffusion couple (14) be made up of boron nitride lid (11), the equal hot body of boron nitride (12), kapillary (13), boron nitride calandria (15) place in the alundum tube (16); Boron nitride lid (11) covers the upper end of boron nitride calandria (15), and the equal hot body of boron nitride (12) places kapillary (13) two ends; The double wrap platinum rhodium heater strip (7) that is wrapped on the boron nitride calandria (15) links to each other with electrode (6); Electrode (6) passes corundum base (8); Thermopair (18) contacts with the equal hot body of boron nitride (12); Air intake opening (9) joins with high-purity argon gas, and gas outlet (17) join with vacuum pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201546465U CN201269841Y (en) | 2008-10-30 | 2008-10-30 | Intense magnetic field fluid metal diffusion apparatus |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201546465U CN201269841Y (en) | 2008-10-30 | 2008-10-30 | Intense magnetic field fluid metal diffusion apparatus |
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| CN201269841Y true CN201269841Y (en) | 2009-07-08 |
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| CNU2008201546465U Expired - Fee Related CN201269841Y (en) | 2008-10-30 | 2008-10-30 | Intense magnetic field fluid metal diffusion apparatus |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102620970A (en) * | 2012-04-11 | 2012-08-01 | 合肥工业大学 | Preparation method of metal melt diffusion sample |
| CN102645391A (en) * | 2012-04-11 | 2012-08-22 | 合肥工业大学 | Metal melt diffusion device |
| CN105823709A (en) * | 2016-05-25 | 2016-08-03 | 武汉纺织大学 | Processing device allowing metal to move in various modes in magnetic field |
| CN107746980A (en) * | 2017-11-10 | 2018-03-02 | 中国工程物理研究院材料研究所 | A kind of solid diffusion experiment device of liquid of uranium metal and method |
| CN110169600A (en) * | 2014-03-19 | 2019-08-27 | 菲利普莫里斯生产公司 | Aerosol generates system and manufacturing method |
| CN110608931A (en) * | 2019-09-11 | 2019-12-24 | 贵研铂业股份有限公司 | High-flux preparation method for preparing metal diffusion couples with large melting point difference |
| CN110823768A (en) * | 2019-11-21 | 2020-02-21 | 中国核动力研究设计院 | Device and method for researching interface compatibility of solid material |
| CN112557136A (en) * | 2020-11-16 | 2021-03-26 | 上海大学 | Multi-element alloy diffusion couple device and multi-element alloy diffusion coefficient determination experimental method |
-
2008
- 2008-10-30 CN CNU2008201546465U patent/CN201269841Y/en not_active Expired - Fee Related
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102645391A (en) * | 2012-04-11 | 2012-08-22 | 合肥工业大学 | Metal melt diffusion device |
| CN102620970B (en) * | 2012-04-11 | 2014-04-30 | 合肥工业大学 | Preparation method of metal melt diffusion sample |
| CN102620970A (en) * | 2012-04-11 | 2012-08-01 | 合肥工业大学 | Preparation method of metal melt diffusion sample |
| CN110169600A (en) * | 2014-03-19 | 2019-08-27 | 菲利普莫里斯生产公司 | Aerosol generates system and manufacturing method |
| US11700889B2 (en) | 2014-03-19 | 2023-07-18 | Philip Morris Products S.A. | Aerosol-generating devices incorporating an intertwined wick and heating element |
| CN110169600B (en) * | 2014-03-19 | 2021-11-26 | 菲利普莫里斯生产公司 | Aerosol-generating system and method of manufacture |
| CN105823709A (en) * | 2016-05-25 | 2016-08-03 | 武汉纺织大学 | Processing device allowing metal to move in various modes in magnetic field |
| CN105823709B (en) * | 2016-05-25 | 2018-05-25 | 武汉纺织大学 | A kind of processing unit of multi-motion mode of the achievable metal in magnetic field |
| CN107746980A (en) * | 2017-11-10 | 2018-03-02 | 中国工程物理研究院材料研究所 | A kind of solid diffusion experiment device of liquid of uranium metal and method |
| CN110608931A (en) * | 2019-09-11 | 2019-12-24 | 贵研铂业股份有限公司 | High-flux preparation method for preparing metal diffusion couples with large melting point difference |
| CN110608931B (en) * | 2019-09-11 | 2022-01-28 | 贵研铂业股份有限公司 | High-flux preparation method for preparing metal diffusion couples with large melting point difference |
| CN110823768A (en) * | 2019-11-21 | 2020-02-21 | 中国核动力研究设计院 | Device and method for researching interface compatibility of solid material |
| CN110823768B (en) * | 2019-11-21 | 2023-02-28 | 中国核动力研究设计院 | Device and method for researching interface compatibility of solid material |
| CN112557136A (en) * | 2020-11-16 | 2021-03-26 | 上海大学 | Multi-element alloy diffusion couple device and multi-element alloy diffusion coefficient determination experimental method |
| CN112557136B (en) * | 2020-11-16 | 2023-05-23 | 上海大学 | Multi-element alloy diffusion couple device and multi-element alloy diffusion coefficient determination experiment method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090708 Termination date: 20131030 |