High temperature and high voltage experimental device for heating gasket
An experimental device, high temperature and high pressure technology, applied in the direction of applying stable tension/pressure to test material strength, material excitation analysis, Raman scattering, etc., can solve the problems of only reaching 450°C, oxidation damage of diamond anvil, etc., to achieve The effect of simple use, low cost and simple structure
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Embodiment 1
[0022] Embodiment 1 The shape and manufacture of the gasket 1, and the material of the insulating layer 2
[0023] to combine figure 1 The structure of the warming core pad of the present invention will be described. figure 1 Among them, gasket 1 is a T301 stainless steel sheet, which is made by laser cutting technology and fine grinding; the pressure groove in the middle of gasket 1 is pre-pressed by anvil 8 of diamond or white gem; the hole in the center of gasket 1 is used as a sample The heating cavity 4 can be made by artificial drilling. A solid copper wire can be used as the wire 5, and welded to both ends of the pad 1 by acetylene-oxygen electric welding. Lead 5 is put on porcelain tube 6, is to avoid press 7 and lead 5 Unicom, also plays fixing role.
[0024] Utilize mica sheet and magnesia or sodium chloride to fill in the pressure groove in the middle of gasket 1, cut off the direct contact between anvil 8 and heating source-gasket 1, use magnesia layer or sodium...
Embodiment 2
[0025] Embodiment 2 The structure of the device of the present invention, assembly
[0026] (1) see image 3 , the structure of the device of the present invention has: upper and lower anvils 8 form a pair of anvils, a gasket 1 is placed in the middle of the upper and lower anvils 8 for sealing pressure, and the upper and lower supporting blocks 9 are used as bases for the anvils. 9 and the anvil are placed in the cavity of the press 7 to implement high pressure on the sample between the anvil surfaces of the two anvils 8 . Such as figure 1 The gasket 1 is connected with direct current as the heating source, and the upper and lower sides of the gasket 1 are padded with mica sheets as the insulating layer 2 for pre-compression, and a layer of magnesium oxide or chlorine is laid in the pressure groove formed by the pre-pressing of the gasket 1 and the mica sheet. Sodium chloride layer; the thermocouple 3 for detecting temperature is placed under the lower insulation layer 2. ...
Embodiment 3
[0033] Embodiment 3 is to the measurement of sample
[0034]Using the device of the present invention to perform high-temperature and high-pressure in-situ Raman measurement on magnesium silicate shows that the device of the present invention can be fully used in the actual high-temperature and high-pressure spectrum measurement. Figure 4 It is the data map of the high temperature and high pressure in situ Raman experiment completed under the condition of 5GPa using a diamond anvil. Figure 5 It is the data map of the high temperature and high pressure in situ Raman experiment completed under the condition of 0.3GP using the white gemstone anvil.
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Abstract
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