CN109765119A - It is a kind of for measuring the device in situ of thermal barrier coating system surface thermal stress - Google Patents
It is a kind of for measuring the device in situ of thermal barrier coating system surface thermal stress Download PDFInfo
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- CN109765119A CN109765119A CN201910033143.5A CN201910033143A CN109765119A CN 109765119 A CN109765119 A CN 109765119A CN 201910033143 A CN201910033143 A CN 201910033143A CN 109765119 A CN109765119 A CN 109765119A
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- barrier coating
- coating system
- thermal barrier
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- thermal stress
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Abstract
The invention discloses a kind of for measuring the device in situ of thermal barrier coating system surface thermal stress, which includes stress detector (101), matrix (102), adhesive layer (103), aluminum oxide film (104), ceramic layer (105), heating plate (106) and fixed plate (107)；Guarantee to can change thermal barrier coating system temperature during thermal stress measurement experiment by the device, the thermal stress in lossless decomposition style heating-heat preservation-temperature-fall period, the apparatus structure is simple, easy to operate.
Description
Technical field
The present invention relates to a kind of for measuring the device in situ of thermal barrier coating system surface thermal stress, is guaranteed by the device
It can change thermal barrier coating system temperature during thermal stress measurement experiment, lossless decomposition style heating-heat preservation-cooled down
Thermal stress in journey belongs to sample mechanical property tests technical field.
Background technique
Since thermal barrier coating is typical sandwich-like structure system, firstly, layers of material parameter (thermal expansion coefficient, springform
Amount and pyroconductivity) it mismatches, according to Fourier's law and thermic vibrating screen, sample to be tested is internal during heating to have temperature
It is poor to spend, and due to mutually constraining between external constraint and inner layers, it is prevented to generate thermal stress from complete breathing.Secondly,
Each thickness degree difference is larger, and TGO thickness is about several microns, adhesive layer and ceramic layer thickness in 20um-100um, the thickness of matrix
In mm magnitude, multiple dimensioned structure, which results in thermal barrier coating, has complicated macro/Micromechanics behavior.Finally, thermal barrier coating takes
Environment and its complexity are used as a servant, needs to overcome the factors such as hyperthermia radiation, flow perturbation and oxidation and sinter, this gives the measurement band of stress
Carry out extreme difficulties, while the mechanical property that sample is showed under room temperature and hot conditions is not identical, this applies thermal boundary
More stringent requirements are proposed for the detection of layer film thermal stress.So designing a set of be directed to can control temperature real-time measurement sample power
The device for learning performance is extremely urgent.
Summary of the invention
In order to improve the above problem, the purpose of the present invention is to provide one kind to answer for measuring thermal barrier coating system surface heat
The device of power guarantees to can change thermal barrier coating system temperature during thermal stress measurement experiment by the device, not damaged
Detect the thermal stress in style heating-heat preservation-temperature-fall period.
To achieve the above object, The technical solution adopted by the invention is as follows:
It is a kind of for measuring the device in situ of thermal barrier coating system surface thermal stress, it is characterised in that: the device guarantee heat
Thermal barrier coating system temperature can be changed in stress measurement experimentation, in lossless decomposition style heating-heat preservation-temperature-fall period
Thermal stress；The device includes stress detector (101), matrix (102), adhesive layer (103), aluminum oxide film (104), ceramics
Layer (105), heating plate (106) and fixed plate (107)；
Matrix (102), adhesive layer (103), aluminum oxide film (104), ceramic layer (105), heating plate (106) are from inside to outside
It is arranged on fixed plate (107)；
The stress detector (101) is individually present above matrix (102)；The outer wall of described matrix (102) sprays to be formed
Adhesive layer (103)；Adhesive layer (103) surface sputters to form aluminum oxide film (104)；Aluminum oxide film (104) table
Face sprays to form ceramic layer (105)；The heating plate (106) is fixed on ceramic layer (105) surface by tension spring；Described matrix
(102) inner wall and fixed plate (107) cylinder are interference fitted.
During the experiment, first by matrix (102), adhesive layer (103), aluminum oxide film (104) and ceramic layer (105)
Composite structure is mounted in fixed plate (107), and heating plate (106) is then fixed on ceramic layer (105) surface by tension spring, is added
Assigned temperature is arranged in hot plate (106), and thermal barrier coating system is heated to deform there are thermal stress, passes through stress detector at this time
(101) thermal barrier coating system surface thermal stress is measured.
Compared with prior art, the invention has the following beneficial effects:
The device in situ of the present invention for heating thermal barrier coating system surface thermal stress, thus it is possible to vary thermal barrier coating system
It unites temperature, the thermal stress in lossless decomposition style heating-heat preservation-temperature-fall period, the apparatus structure is simple, easy to operate.
Detailed description of the invention
Fig. 1 is the Structure explosion diagram in situ for heating thermal barrier coating system surface thermal stress of the invention.
Fig. 2 is the structural side view in situ for heating thermal barrier coating system surface thermal stress of the invention.
In figure: 101- stress detector, 102- matrix, 103- adhesive layer, 104- aluminum oxide film, 105- ceramic layer,
106- heating plate, 107- fixed plate.
Specific embodiment
Present invention will be further explained below with reference to the attached drawings and examples.
As shown in Figs. 1-2, Fig. 1 is the structural blast in situ for heating thermal barrier coating system surface thermal stress of the invention
Figure.
Fig. 2 is the structural side view in situ for heating thermal barrier coating system surface thermal stress of the invention.
Embodiment
It is a kind of for measuring the device in situ of thermal barrier coating system surface thermal stress, which guarantees thermal stress measurement experiment
It can change thermal barrier coating system temperature, the thermal stress in lossless decomposition style heating-heat preservation-temperature-fall period in the process.It should
Device includes stress detector (101), matrix (102), adhesive layer (103), aluminum oxide film (104), ceramic layer (105), adds
Hot plate (106) and fixed plate (107).
Matrix (102), adhesive layer (103), aluminum oxide film (104), ceramic layer (105), heating plate (106) are from inside to outside
It is arranged on fixed plate (107)；
The stress detector (101) is individually present above matrix (102)；The outer wall of described matrix (102) sprays to be formed
Adhesive layer (103)；Adhesive layer (103) surface sputters to form aluminum oxide film (104)；Aluminum oxide film (104) table
Face sprays to form ceramic layer (105)；The heating plate (106) is fixed on ceramic layer (105) surface by tension spring；Described matrix
(102) inner wall and fixed plate (107) cylinder are interference fitted.
This sealing device is directed to the experiment in situ that can heat thermal barrier coating system surface thermal stress, during the experiment,
Matrix (102), adhesive layer (103), aluminum oxide film (104) and ceramic layer (105) composite structure are mounted on fixed plate first
(107) in, heating plate (106) is then fixed on ceramic layer (105) surface, the specified temperature of heating plate (106) setting by tension spring
Degree, thermal barrier coating system is heated to deform there are thermal stress, measures thermal barrier coating system by stress detector (101) at this time
System surface thermal stress.
Although the embodiment of the present invention discloses as above, present invention is not limited to this.Anyone skilled in the art, not
It is detached from the spirit and scope of the present invention, can make various changes or modifications, therefore protection scope of the present invention should be with right
It is required that subject to limited range.
Claims (2)
1. a kind of for measuring the device in situ of thermal barrier coating system surface thermal stress, it is characterised in that: the device guarantees that heat is answered
Thermal barrier coating system temperature can be changed during power measurement experiment, in lossless decomposition style heating-heat preservation-temperature-fall period
Thermal stress；The device includes stress detector (101), matrix (102), adhesive layer (103), aluminum oxide film (104), ceramic layer
(105), heating plate (106) and fixed plate (107)；
Matrix (102), adhesive layer (103), aluminum oxide film (104), ceramic layer (105), heating plate (106) are arranged from inside to outside
On fixed plate (107)；
The stress detector (101) is individually present above matrix (102)；The outer wall of described matrix (102) sprays to form bonding
Layer (103)；Adhesive layer (103) surface sputters to form aluminum oxide film (104)；Aluminum oxide film (104) the surface spray
Painting forms ceramic layer (105)；The heating plate (106) is fixed on ceramic layer (105) surface by tension spring；Described matrix (102)
Inner wall and fixed plate (107) cylinder are interference fitted.
2. according to claim 1 a kind of for measuring the device in situ of thermal barrier coating system surface thermal stress, feature
It is: during the experiment, first by matrix (102), adhesive layer (103), aluminum oxide film (104) and ceramic layer (105) group
It closes structure to be mounted in fixed plate (107), heating plate (106) is then fixed on ceramic layer (105) surface by tension spring, heat
Assigned temperature is arranged in plate (106), and thermal barrier coating system is heated to deform there are thermal stress, passes through stress detector at this time
(101) thermal barrier coating system surface thermal stress is measured.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910033143.5A CN109765119B (en) | 2019-01-14 | 2019-01-14 | In-situ device for measuring thermal stress on surface of thermal barrier coating system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910033143.5A CN109765119B (en) | 2019-01-14 | 2019-01-14 | In-situ device for measuring thermal stress on surface of thermal barrier coating system |
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| CN109765119A true CN109765119A (en) | 2019-05-17 |
| CN109765119B CN109765119B (en) | 2021-11-26 |
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