CN111380794A - Detection method for pore diameter of porous ceramic component - Google Patents
Detection method for pore diameter of porous ceramic component Download PDFInfo
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- CN111380794A CN111380794A CN202010267113.3A CN202010267113A CN111380794A CN 111380794 A CN111380794 A CN 111380794A CN 202010267113 A CN202010267113 A CN 202010267113A CN 111380794 A CN111380794 A CN 111380794A
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- 239000000919 ceramic Substances 0.000 title claims abstract description 27
- 239000011148 porous material Substances 0.000 title claims description 17
- 238000001514 detection method Methods 0.000 title abstract description 8
- 238000000034 method Methods 0.000 claims abstract description 16
- 238000001035 drying Methods 0.000 claims abstract description 10
- 238000004140 cleaning Methods 0.000 claims abstract description 8
- 239000000463 material Substances 0.000 claims abstract description 4
- 239000012085 test solution Substances 0.000 claims description 12
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 5
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 3
- 239000008367 deionised water Substances 0.000 claims description 3
- 229910021641 deionized water Inorganic materials 0.000 claims description 3
- 230000008595 infiltration Effects 0.000 claims description 3
- 238000001764 infiltration Methods 0.000 claims description 3
- 229910052757 nitrogen Inorganic materials 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 239000000243 solution Substances 0.000 claims description 2
- 230000000630 rising effect Effects 0.000 claims 1
- 238000002360 preparation method Methods 0.000 abstract description 2
- 230000000712 assembly Effects 0.000 abstract 1
- 238000000429 assembly Methods 0.000 abstract 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000004506 ultrasonic cleaning Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/08—Investigating permeability, pore-volume, or surface area of porous materials
- G01N15/088—Investigating volume, surface area, size or distribution of pores; Porosimetry
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- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Abstract
The invention relates to the technical field of aperture detection, in particular to a method for detecting the aperture of a porous ceramic assembly, which comprises the following steps of A, preparing a material to be detected, ① a plurality of ceramic assemblies with the same specification, cleaning and drying by adopting ultrasonic waves, ② circular hollow rubber sheets are respectively attached to two side faces of each ceramic assembly, exposed parts in a ring are regions to be detected, samples to be detected with the same specification are formed, B, test preparation is carried out, C, adjustment, observation and recording are carried out, D, calculation and statistics are carried out, recorded data are substituted into a calculation formula one by one, a plurality of groups of numerical values are obtained and collected.
Description
Technical Field
The invention relates to the technical field of pore diameter detection, in particular to a method for detecting the pore diameter of a porous ceramic component.
Background
The porous ceramic component is one kind of porous material, and has relatively high permeability owing to the dense pores on the surface and inside of the ceramic component, so that the pore size is directly related to the practical performance of the ceramic component.
In the prior art, a 'bubble method' is usually adopted to detect the pore diameter of the porous ceramic component, but the method still has certain problems, such as insufficient pretreatment of the ceramic component, lack of effective positioning treatment, unstable pressure rise rate and the like, which all cause interference to the detection result.
Disclosure of Invention
The invention aims to provide a method for detecting the pore diameter of a porous ceramic component, which has the advantage of comprehensively improving the detection precision and solves the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a method for detecting the pore diameter of a porous ceramic component comprises the following steps:
A. preparing materials to be detected, namely ① a plurality of ceramic components with the same specification, cleaning and drying by adopting ultrasonic waves, ② circular hollow rubber sheets are respectively attached to two side surfaces of each ceramic component, and the exposed part in the ring is an area to be detected to form samples to be detected with the same specification;
B. ① placing the sample to be tested into the middle part of the test cell one by one and clamping the edges, ② injecting a proper amount of test liquid to submerge the sample to be tested, and standing for a period of time;
C. adjusting, observing and recording, wherein ① slowly opens the air valve, nitrogen is injected into the test cell to increase the air pressure at a constant speed, ② observes two side surfaces of the sample to be tested, when a string of bubbles is generated by a certain or a plurality of obvious points, corresponding data are recorded, ③ continuously increases the air pressure, and when the bubbles are observed to be boiled, corresponding data are recorded again;
D. calculating and counting: and substituting the recorded data into a calculation formula one by one to obtain a plurality of groups of values and summarizing.
Preferably, the cleaning liquid in the step A- ① is deionized water, the time is 10min, the drying temperature is 105 ℃, and the time is 20 min.
Preferably, the test solution in the step B- ② adopts 95% absolute ethyl alcohol, and the standing time is 10 min.
Preferably, the pressure increase rate in the step C- ① is 40 Pa/s.
Preferably, the data in steps C- ②, ③ includes pressure values, bubble rise heights, and test solution temperatures.
Preferably, the calculation formula in step D is as follows,
Compared with the prior art, the invention has the following beneficial effects:
cleaning and drying the ceramic component by ultrasonic waves, and limiting a region to be detected by adopting a round hollow rubber sheet to eliminate interference and deviation; by improving the flow of the 'bubble method', the test preparation work is ensured to be stable and sufficient, the boosting rate is maintained, and the bubbles are ensured to be stably generated, so that the detection precision of the pore diameter of the porous ceramic component is effectively improved.
Drawings
FIG. 1 is a flow chart of the method of the present invention;
FIG. 2 is a graph of gas flow versus pressure according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-2, an embodiment:
a method for detecting the pore diameter of a porous ceramic component comprises the following steps:
A. preparing materials to be detected, namely ① a plurality of ceramic components with the same specification, cleaning and drying by adopting ultrasonic waves, ② circular hollow rubber sheets are respectively attached to two side surfaces of each ceramic component, and the exposed part in the ring is an area to be detected to form samples to be detected with the same specification;
B. ① placing the sample to be tested into the middle part of the test cell one by one and clamping the edges, ② injecting a proper amount of test liquid to submerge the sample to be tested, and standing for a period of time;
C. adjusting, observing and recording, wherein ① slowly opens the air valve, nitrogen is injected into the test cell to increase the air pressure at a constant speed, ② observes two side surfaces of the sample to be tested, when a string of bubbles is generated by a certain or a plurality of obvious points, corresponding data are recorded, ③ continuously increases the air pressure, and when the bubbles are observed to be boiled, corresponding data are recorded again;
D. calculating and counting: and substituting the recorded data into a calculation formula one by one to obtain a plurality of groups of values and summarizing.
And B, in the step A- ①, the cleaning liquid is deionized water for 10min, and the drying temperature is 105 ℃ and the drying time is 20 min.
And B- ②, adopting 95% absolute ethyl alcohol as the test solution, and standing for 10 min.
The pressure increase rate in the step C- ① is 40 Pa/s.
The data in steps C- ②, ③ include pressure values, bubble rise heights, and test solution temperatures.
The calculation formula in said step D is as follows,
Control group one:
the content of the comparison group is basically the same as that of the embodiment, and the same parts are not repeated, except that: in the step A, ultrasonic cleaning and drying treatment are cancelled, and the circular hollow rubber sheet is not attached.
Control group two:
the content of the comparison group is basically the same as that of the embodiment, and the same parts are not repeated, except that: in step B, the clamping and standing treatment is cancelled.
Control group three:
the content of the comparison group is basically the same as that of the embodiment, and the same parts are not repeated, except that: in step C, the boosting rate is not regulated at a constant speed.
Table one:
| examples | Control group one | Control group two | Control group III | |
| Detection accuracy | + | - | - | - |
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. A method for detecting the pore diameter of a porous ceramic component is characterized by comprising the following steps: the method comprises the following steps:
A. preparing materials to be detected, namely ① a plurality of ceramic components with the same specification, cleaning and drying by adopting ultrasonic waves, ② circular hollow rubber sheets are respectively attached to two side surfaces of each ceramic component, and the exposed part in the ring is an area to be detected to form samples to be detected with the same specification;
B. ① placing the sample to be tested into the middle part of the test cell one by one and clamping the edges, ② injecting a proper amount of test liquid to submerge the sample to be tested, and standing for a period of time;
C. adjusting, observing and recording, wherein ① slowly opens the air valve, nitrogen is injected into the test cell to increase the air pressure at a constant speed, ② observes two side surfaces of the sample to be tested, when a string of bubbles is generated by a certain or a plurality of obvious points, corresponding data are recorded, ③ continuously increases the air pressure, and when the bubbles are observed to be boiled, corresponding data are recorded again;
D. calculating and counting: and substituting the recorded data into a calculation formula one by one to obtain a plurality of groups of values and summarizing.
2. The method for detecting the pore diameter of the porous ceramic component as claimed in claim 1, wherein the cleaning solution in the step A- ① is deionized water for 10min, and the drying temperature is 105 ℃ for 20 min.
3. The method for detecting the pore diameter of the porous ceramic component as claimed in claim 1, wherein the test solution in the step B- ② is 95% absolute ethyl alcohol, and the standing time is 10 min.
4. The method for detecting the pore diameter of the porous ceramic component according to claim 1, wherein the pressure increase rate in the step C- ① is 40 Pa/s.
5. The method of claim 1, wherein the data in steps C- ② and ③ includes pressure value, bubble rising height, and test solution temperature.
6. The method for detecting the pore diameter of the porous ceramic component according to claim 1, wherein: the calculation formula in said step D is as follows,
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010267113.3A CN111380794A (en) | 2020-04-07 | 2020-04-07 | Detection method for pore diameter of porous ceramic component |
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| CN202010267113.3A CN111380794A (en) | 2020-04-07 | 2020-04-07 | Detection method for pore diameter of porous ceramic component |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI772056B (en) * | 2021-06-08 | 2022-07-21 | 遠東科技大學 | Method for detecting carbon-containing pores in ceramics |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1776399A (en) * | 2005-11-29 | 2006-05-24 | 吉林大学 | Ceramic powder true density measuring method |
| CN101762251A (en) * | 2010-01-12 | 2010-06-30 | 大连工业大学 | Method and apparatus for measuring aperture of filter material |
| CN104266952A (en) * | 2014-09-30 | 2015-01-07 | 成都易态科技有限公司 | Pore diameter detection device of porous material |
| CN105964149A (en) * | 2016-06-16 | 2016-09-28 | 兰州交通大学 | Device for determining pore size and pore size distribution of ion exchange membrane |
| CN108414421A (en) * | 2018-02-22 | 2018-08-17 | 国家海洋局天津海水淡化与综合利用研究所 | The test method and corresponding test device of a kind of ultrafiltration membrane perforation pore size and pore size distribution |
-
2020
- 2020-04-07 CN CN202010267113.3A patent/CN111380794A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1776399A (en) * | 2005-11-29 | 2006-05-24 | 吉林大学 | Ceramic powder true density measuring method |
| CN101762251A (en) * | 2010-01-12 | 2010-06-30 | 大连工业大学 | Method and apparatus for measuring aperture of filter material |
| CN104266952A (en) * | 2014-09-30 | 2015-01-07 | 成都易态科技有限公司 | Pore diameter detection device of porous material |
| CN105964149A (en) * | 2016-06-16 | 2016-09-28 | 兰州交通大学 | Device for determining pore size and pore size distribution of ion exchange membrane |
| CN108414421A (en) * | 2018-02-22 | 2018-08-17 | 国家海洋局天津海水淡化与综合利用研究所 | The test method and corresponding test device of a kind of ultrafiltration membrane perforation pore size and pore size distribution |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI772056B (en) * | 2021-06-08 | 2022-07-21 | 遠東科技大學 | Method for detecting carbon-containing pores in ceramics |
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Application publication date: 20200707 |