Temperature loading device used for neutron reflection solid liquid interface experiment
A technology of loading device and solid-liquid interface, applied in material analysis using radiation diffraction, material analysis using wave/particle radiation, measuring device, etc., can solve problems such as high cost, measurement interface interference, and influence on experimental results, etc., to achieve Easy to operate, reduce experiment cost, good temperature stability
Pending Publication Date: 2018-12-21
INST OF NUCLEAR PHYSICS & CHEM CHINA ACADEMY OF
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Problems solved by technology
In this case, the use of liquid bath heating can ensure the stability of temperature. The existing temperature changing method is to use the test solution as the circulating fluid directly, which requires more solution consumption. For the more expensive test solution, the cost is relatively high. High, and the liquid flow is easy to cause interference to the measurement interface, affecting the experimental results
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Embodiment 1
[0041] The gasket (8) of this embodiment is a square piece with a square hole in the middle, where the square hole is convenient for the positioning of the sample. The size of the square hole is 2cm×2cm, and the material is stainless steel sheet, mainly to protect the sample; the liquid pool ( 61) The size of the surface in the z direction, the sample (7) and the gasket (8) is 5cm×5cm; the water circulation thermostat (9) is a commercial product with a temperature control range of 0-100°C and a temperature control accuracy of less than 0.1°C; The temperature of the temperature loading device was stabilized up to 0.1 °C.
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The invention discloses a temperature loading device used for a neutron reflection solid liquid interface experiment. The device divides a liquid cell into two areas, one is a flow cell used for liquid flow, the other one is a sample cell used for the experiment, and the two cells are non-interfering, so that no disturbance is produced on the surface of a sample when a liquid flows in a temperature loading process. During temperature loading, circulating water of a water circulation thermostat is utilized and flows through the flow cell, then heat transfer of the flow cell and the sample cellis realized by virtue of a heat transfer piece, a temperature probe of the water circulation thermostat is also arranged in the sample cell, and when the sample cell and a sample reach a set temperature, the water circulation thermostat turns into a heat preservation state, thus temperature of a to-be-detected surface of the sample is accurately controlled. The device disclosed by the invention has the characteristics of easy operation, lower experiment cost, good temperature stability and no interference on the surface of the sample and can be used for a neutron reflection experiment on a solid liquid interface, especially a high-molecular polymer solid liquid interface, under the temperature loading condition.
Description
technical field [0001] The invention belongs to the technical field of neutron reflection experiments, in particular to a temperature loading device for neutron reflection solid-liquid interface experiments. Background technique [0002] The properties of the material surface or interface are completely different from those of the bulk phase. In the final analysis, it is due to the difference in the microstructure of the surface or interface. At present, there are many mature technologies for measuring the surface interface structure of materials, mainly X-ray reflection, medium Neutron reflection and elliptically polarized light and other technologies, among which neutron reflection technology has unique advantages in measuring magnetic structure, organic polymer interface and deep buried interface. In terms of organic polymer interface and surface measurement, it is often necessary to place the sample surface or interface in a solution in order to study its mechanism of ac...
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Login to View More IPC IPC(8): G01N23/20G01N23/20033
CPCG01N23/20G01N23/20033Y02E30/30
Inventor 谢雷李新喜王燕孙光爱汪小琳
Owner INST OF NUCLEAR PHYSICS & CHEM CHINA ACADEMY OF