CN108017403A - A kind of compound heat accumulation ceramic based material of high-temperature phase-change and preparation method thereof - Google Patents
A kind of compound heat accumulation ceramic based material of high-temperature phase-change and preparation method thereof Download PDFInfo
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- 239000000919 ceramic Substances 0.000 title claims abstract description 62
- 150000001875 compounds Chemical class 0.000 title claims abstract description 46
- 239000000463 material Substances 0.000 title claims abstract description 40
- 238000009825 accumulation Methods 0.000 title claims abstract description 35
- 238000002360 preparation method Methods 0.000 title claims abstract description 17
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims abstract description 26
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 claims abstract description 26
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 22
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 21
- 239000010439 graphite Substances 0.000 claims abstract description 21
- 239000000758 substrate Substances 0.000 claims abstract description 14
- XGZVUEUWXADBQD-UHFFFAOYSA-L lithium carbonate Chemical compound [Li+].[Li+].[O-]C([O-])=O XGZVUEUWXADBQD-UHFFFAOYSA-L 0.000 claims abstract description 13
- 229910052808 lithium carbonate Inorganic materials 0.000 claims abstract description 13
- 229910000027 potassium carbonate Inorganic materials 0.000 claims abstract description 13
- 229910000029 sodium carbonate Inorganic materials 0.000 claims abstract description 13
- 229920000049 Carbon (fiber) Polymers 0.000 claims abstract description 12
- 239000004917 carbon fiber Substances 0.000 claims abstract description 12
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000002994 raw material Substances 0.000 claims abstract description 6
- 239000011159 matrix material Substances 0.000 claims description 14
- 150000003839 salts Chemical class 0.000 claims description 12
- 238000005245 sintering Methods 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 7
- 238000001816 cooling Methods 0.000 claims description 6
- 239000011261 inert gas Substances 0.000 claims description 6
- 238000003825 pressing Methods 0.000 claims description 6
- 238000007493 shaping process Methods 0.000 claims description 6
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims description 4
- 229910052796 boron Inorganic materials 0.000 claims description 4
- 229910052681 coesite Inorganic materials 0.000 claims description 4
- 229910052906 cristobalite Inorganic materials 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 4
- 239000000377 silicon dioxide Substances 0.000 claims description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 4
- 229910052682 stishovite Inorganic materials 0.000 claims description 4
- 229910052905 tridymite Inorganic materials 0.000 claims description 4
- 239000002245 particle Substances 0.000 claims description 2
- 229910052799 carbon Inorganic materials 0.000 claims 1
- 239000000835 fiber Substances 0.000 claims 1
- 229910052573 porcelain Inorganic materials 0.000 claims 1
- 238000005338 heat storage Methods 0.000 abstract description 4
- 230000008859 change Effects 0.000 abstract description 3
- 239000011232 storage material Substances 0.000 abstract description 3
- 238000010521 absorption reaction Methods 0.000 abstract description 2
- 238000006243 chemical reaction Methods 0.000 abstract description 2
- 230000001988 toxicity Effects 0.000 abstract description 2
- 231100000419 toxicity Toxicity 0.000 abstract description 2
- 230000009466 transformation Effects 0.000 abstract description 2
- 238000000465 moulding Methods 0.000 description 4
- 238000002156 mixing Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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Abstract
The invention belongs to heat accumulating technical field, specifically discloses compound heat accumulation ceramic based material of a kind of high-temperature phase-change and preparation method thereof.In parts by weight, which is prepared by following raw material：10~15 parts of ceramic substrate, 20~30 parts of lithium carbonate, 20~30 parts of potassium carbonate, 30~40 parts of sodium carbonate, 1~2 part of highly-conductive hot carbon fiber, 1~2 part of doped graphite.The compound heat accumulation ceramic based material of high-temperature phase-change prepared by the present invention, has the advantages that latent heat of phase change is big, high-temperature stability is strong, small toxicity, corrosivity are small, can be used as phase-change heat-storage material, improve energy conversion efficiency；Heat conductivility higher, heat absorption exotherm rate is faster；Its shape will not be changed in phase transformation, can effectively prevent from revealing.
Description
Technical field
The invention belongs to heat accumulating technical field, and in particular to a kind of compound heat accumulation ceramic based material of high-temperature phase-change and its
Preparation method.
Background technology
It is energy saving with it is environmentally friendly be field of energy utilization an important topic, utilize phase-change heat-storage material latent heat of phase change storage
Energy is a kind of new power-saving technology.Heat accumulating absorbs the heat of surrounding environment in phase transition process, and in surrounding environment
When temperature reduces, heat is discharged to surrounding environment, so as to achieve the purpose that to control ambient temperature and energy saving.It is in solar energy
All have wide practical use using fields such as, thermal energy recycling, air conditioner refrigerating, building energy conservation, aerospaces.
The shortcomings that current heat accumulating generally existing heat conductivility is poor, therefore manufactured phase-change thermal storage component is due to heat conduction
Property is poor, can not give full play to the heat storage function of heat accumulating.Secondly, when solid-liquid phase-changeable occurs for heat accumulating, can cause to leak
Problem.
The content of the invention
First technical problem to be solved by this invention is to provide a kind of compound heat accumulation ceramic based material of high-temperature phase-change, with
Parts by weight meter, the material are prepared by following raw material：10~15 parts of ceramic substrate, 20~30 parts of lithium carbonate, potassium carbonate 20~
30 parts, 30~40 parts of sodium carbonate, 1~2 part of highly-conductive hot carbon fiber, 1~2 part of doped graphite.
Preferably, the compound heat accumulation ceramic based material of above-mentioned high-temperature phase-change, in parts by weight, which is prepared by following raw material
Obtain：15 parts of ceramic substrate, 25 parts of lithium carbonate, 25 parts of potassium carbonate, 40 parts of sodium carbonate, 1 part of highly-conductive hot carbon fiber, doped graphite 2
Part.
Wherein, in the compound heat accumulation ceramic based material of above-mentioned high-temperature phase-change, the ceramic substrate is SiC, SiO2Or MgO.
Wherein, in the compound heat accumulation ceramic based material of above-mentioned high-temperature phase-change, the doped graphite is N doping graphite or boron
Doped graphite.
Second technical problem to be solved by this invention is to provide the compound heat accumulation ceramic based material of above-mentioned high-temperature phase-change
Preparation method, this method specifically include following steps：
(1) it is 10~15 parts of 20~30 parts of lithium carbonate, 20~30 parts of potassium carbonate, 30~40 parts of sodium carbonate and ceramic substrate is mixed
Close, be ground uniformly mixed, obtain inorganic salts ceramic matrix systems；
(2) 1~2 part of highly-conductive hot carbon fiber, 1~2 part of doped graphite are heated in 500~600 DEG C of inert gases
15min, is then added in above-mentioned inorganic salts ceramic matrix systems, uniform by ground and mixed, forms compound system；
(3) after the pressurized shaping of above-mentioned compound system, 20~30min is sintered in 700~760 DEG C, is cooled down after the completion of sintering
To room temperature, the compound heat accumulation ceramic based material of high-temperature phase-change is obtained.
Wherein, grinding in the preparation method of the compound heat accumulation ceramic based material of above-mentioned high-temperature phase-change, step (1) and step (2)
To particle diameter between 400~500 mesh.
Wherein, the preparation method of the compound heat accumulation ceramic based material of above-mentioned high-temperature phase-change, the condition pressurizeed described in step (3)
For：2.4~2.8MPa of pressure, 2~2.5min of pressing time.
Wherein, the preparation method of the compound heat accumulation ceramic based material of above-mentioned high-temperature phase-change, liter when being sintered described in step (3)
Warm speed is 3~5 DEG C/min, and the rate of temperature fall during cooling is 10 DEG C/min.
Compared with prior art, the beneficial effects of the invention are as follows：The compound heat accumulation ceramic base of high-temperature phase-change prepared by the present invention
Material, has the advantages that latent heat of phase change is big, high-temperature stability is strong, small toxicity, corrosivity are small, can make as phase-change heat-storage material
With improving energy conversion efficiency；Heat conductivility higher, heat absorption exotherm rate is faster；Its shape will not be changed in phase transformation, can
Effectively to prevent from revealing.
Embodiment
The present invention provides a kind of compound heat accumulation ceramic based material of high-temperature phase-change, in parts by weight, the material is by following original
Material is prepared：10~15 parts of ceramic substrate, 20~30 parts of lithium carbonate, 20~30 parts of potassium carbonate, 30~40 parts of sodium carbonate, height are led
Hot 1~2 part of carbon fiber, 1~2 part of doped graphite；
The ceramic substrate is SiC, SiO2Or MgO, the doped graphite adulterate stone for N doping graphite or boron
Ink.
Preferably, the compound heat accumulation ceramic based material of above-mentioned high-temperature phase-change, in parts by weight, which is prepared by following raw material
Obtain：15 parts of ceramic substrate, 25 parts of lithium carbonate, 25 parts of potassium carbonate, 40 parts of sodium carbonate, 1 part of highly-conductive hot carbon fiber, doped graphite 2
Part.
Further, present invention also offers the preparation method of the compound heat accumulation ceramic based material of above-mentioned high-temperature phase-change, the party
Method specifically includes following steps：
(1) it is 10~15 parts of 20~30 parts of lithium carbonate, 20~30 parts of potassium carbonate, 30~40 parts of sodium carbonate and ceramic substrate is mixed
Close, be ground to 400~500 mesh and be uniformly mixed, obtain inorganic salts ceramic matrix systems；
(2) 1~2 part of highly-conductive hot carbon fiber, 1~2 part of doped graphite are heated in 500~600 DEG C of inert gases
15min, is then added in above-mentioned inorganic salts ceramic matrix systems, is uniformly mixed by being ground to 400~500 mesh, is formed multiple
Zoarium system；
(3) after the pressurized shaping of above-mentioned compound system, 2.4~2.8MPa of moulding pressure, 2~2.5min of pressing time, in
700~760 DEG C sinter 20~30min, are cooled to room temperature after the completion of sintering, obtain the compound heat accumulation ceramic based material of high-temperature phase-change.
Wherein, the preparation method of the compound heat accumulation ceramic based material of above-mentioned high-temperature phase-change, liter when being sintered described in step (3)
Warm speed is 3~5 DEG C/min, and the rate of temperature fall during cooling is 10 DEG C/min.
The present invention is made further explanation and description below in conjunction with specific embodiment, but is not intended to limit the present invention
Protection domain.
Embodiment 1
The preparation method of the compound heat accumulation ceramic based material of high-temperature phase-change, this method specifically include following steps：
(1) by 25 parts of lithium carbonate, 25 parts of potassium carbonate, 40 parts of sodium carbonate and the mixing of 15 parts of SiC ceramic matrix, be ground to
400 mesh are uniformly mixed, and obtain inorganic salts ceramic matrix systems；
(2) 1 part of highly-conductive hot carbon fiber, 2 parts of N doping graphite are heated into 15min in 520 DEG C of inert gases, then added
Into inorganic salts ceramic matrix systems, it is uniformly mixed by being ground to 400 mesh, forms compound system；
(3) after the pressurized shaping of compound system, moulding pressure 2.8MPa, pressing time 2min, 20min is sintered in 760 DEG C,
Heating rate during sintering is 5 DEG C/min, is cooled to room temperature after the completion of sintering, and rate of temperature fall during cooling is 10 DEG C/min, is obtained
To the compound heat accumulation ceramic based material of high-temperature phase-change.
Embodiment 2
The preparation method of the compound heat accumulation ceramic based material of high-temperature phase-change, this method specifically include following steps：
(1) by 20 parts of lithium carbonate, 30 parts of potassium carbonate, 30 parts of sodium carbonate and the mixing of 10 parts of MgO ceramic substrates, be ground to
500 mesh are uniformly mixed, and obtain inorganic salts ceramic matrix systems；
(2) 2 parts of highly-conductive hot carbon fiber, 1 part of N doping graphite are heated into 15min in 600 DEG C of inert gases, then added
Into inorganic salts ceramic matrix systems, it is uniformly mixed by being ground to 500 mesh, forms compound system；
(3) after the pressurized shaping of compound system, moulding pressure 2.4MPa, pressing time 2.5min, in 700 DEG C of sintering
30min, heating rate during sintering is 3 DEG C/min, is cooled to room temperature after the completion of sintering, rate of temperature fall during cooling for 10 DEG C/
Min, obtains the compound heat accumulation ceramic based material of high-temperature phase-change.
Embodiment 3
The preparation method of the compound heat accumulation ceramic based material of high-temperature phase-change, this method specifically include following steps：
(1) by 30 parts of lithium carbonate, 20 parts of potassium carbonate, 35 parts of sodium carbonate and SiO212 parts of mixing of ceramic substrate, are ground
It is uniformly mixed to 450 mesh, obtains inorganic salts ceramic matrix systems；
(2) 1.5 parts of highly-conductive hot carbon fiber, 1.5 parts of boron doped graphite are heated into 15min in 560 DEG C of inert gases, then
It is added in inorganic salts ceramic matrix systems, is uniformly mixed by being ground to 460 mesh, forms compound system；
(3) after the pressurized shaping of compound system, moulding pressure 2.6MPa, pressing time 2min, 25min is sintered in 740 DEG C,
Heating rate during sintering is 3 DEG C/min, is cooled to room temperature after the completion of sintering, and rate of temperature fall during cooling is 10 DEG C/min, is obtained
To the compound heat accumulation ceramic based material of high-temperature phase-change.
Claims (8)
1. a kind of compound heat accumulation ceramic based material of high-temperature phase-change, it is characterised in that in parts by weight, the material is by following raw material system
It is standby to obtain：10~15 parts of ceramic substrate, 20~30 parts of lithium carbonate, 20~30 parts of potassium carbonate, 30~40 parts of sodium carbonate, highly-conductive hot carbon
1~2 part of fiber, 1~2 part of doped graphite.
2. the compound heat accumulation ceramic based material of a kind of high-temperature phase-change according to claim 1, it is characterised in that with parts by weight
Meter, the material are prepared by following raw material：15 parts of ceramic substrate, 25 parts of lithium carbonate, 25 parts of potassium carbonate, 40 parts of sodium carbonate, height
1 part of heat conduction carbon fiber, 2 parts of doped graphite.
A kind of 3. compound heat accumulation ceramic based material of high-temperature phase-change according to claim 1 or 2, it is characterised in that the pottery
Porcelain matrix is SiC, SiO2Or MgO.
4. the compound heat accumulation ceramic based material of a kind of high-temperature phase-change according to claim 1 or 2, it is characterised in that described to mix
Miscellaneous graphite is N doping graphite or boron doped graphite.
5. the preparation method of the compound heat accumulation ceramic based material of any one of Claims 1 to 4 high-temperature phase-change, it is characterised in that
This method specifically includes following steps：
(1) 10~15 parts of 20~30 parts of lithium carbonate, 20~30 parts of potassium carbonate, 30~40 parts of sodium carbonate and ceramic substrate are mixed,
It is ground uniformly mixed, obtains inorganic salts ceramic matrix systems；
(2) 1~2 part of highly-conductive hot carbon fiber, 1~2 part of doped graphite are heated into 15min in 500~600 DEG C of inert gases, so
After be added in above-mentioned inorganic salts ceramic matrix systems, it is uniform by ground and mixed, formed compound system；
(3) after the pressurized shaping of above-mentioned compound system, 20~30min is sintered in 700~760 DEG C, is cooled to after the completion of sintering often
Temperature, obtains the compound heat accumulation ceramic based material of high-temperature phase-change.
6. the preparation method of the compound heat accumulation ceramic based material of high-temperature phase-change according to claim 5, it is characterised in that step
(1) and in step (2) particle diameter is ground between 400~500 mesh.
7. the preparation method of the compound heat accumulation ceramic based material of high-temperature phase-change according to claim 5, it is characterised in that step
(3) condition pressurizeed described in is：2.4~2.8MPa of pressure, 2~2.5min of pressing time.
8. the preparation method of the compound heat accumulation ceramic based material of high-temperature phase-change according to claim 5, it is characterised in that step
(3) heating rate when being sintered described in is 3~5 DEG C/min, and the rate of temperature fall during cooling is 10 DEG C/min.
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108624294A (en) * | 2018-06-08 | 2018-10-09 | 华北电力大学 | A kind of high temperature phase-change heat-storage material and preparation method based on gangue |
| CN108675822A (en) * | 2018-07-09 | 2018-10-19 | 合肥连森裕腾新材料科技开发有限公司 | A kind of heat accumulation ceramic based material and preparation method thereof |
| CN108865079A (en) * | 2018-08-22 | 2018-11-23 | 北京科技大学 | A method of high-temperature molten salt particle phase-change material is encapsulated using unorganic glass powder |
| CN109135684A (en) * | 2018-09-21 | 2019-01-04 | 贵州梅岭电源有限公司 | A kind of thermal cell composite phase-change material and preparation method thereof |
| CN109320212A (en) * | 2018-10-22 | 2019-02-12 | 全球能源互联网研究院有限公司 | A kind of phase-change heat-storage material, phase-change thermal storage brick and preparation method thereof |
| CN113429940A (en) * | 2021-07-12 | 2021-09-24 | 华中科技大学 | Nano silicon carbide reinforced heat storage composite phase change heat storage material and preparation method thereof |
| US11740031B1 (en) | 2022-03-04 | 2023-08-29 | Battelle Savannah River Alliance, Llc | High temperature thermochemical energy storage materials |
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| CN108865079B (en) * | 2018-08-22 | 2020-12-22 | 北京科技大学 | Method for packaging high-temperature molten salt particle phase change material by using inorganic glass powder |
| CN109135684A (en) * | 2018-09-21 | 2019-01-04 | 贵州梅岭电源有限公司 | A kind of thermal cell composite phase-change material and preparation method thereof |
| CN109320212A (en) * | 2018-10-22 | 2019-02-12 | 全球能源互联网研究院有限公司 | A kind of phase-change heat-storage material, phase-change thermal storage brick and preparation method thereof |
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| CN113429940B (en) * | 2021-07-12 | 2022-05-20 | 华中科技大学 | Nano silicon carbide reinforced heat storage composite phase-change heat storage material and preparation method thereof |
| US11740031B1 (en) | 2022-03-04 | 2023-08-29 | Battelle Savannah River Alliance, Llc | High temperature thermochemical energy storage materials |
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