Array sample laser heating system

A laser heating and sample technology, which is applied in the field of array sample laser heating system, can solve the problem of inapplicability of rapid high-temperature heat treatment of array sample library, and achieve the effect of rapid heating, stable heating process and directional heating

Active Publication Date: 2021-02-12
SHANGHAI INST OF CERAMIC CHEM & TECH CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Obviously, none of these existing techniques are suitable for rapid high-temperature heat treatment of arrayed sample libraries

Method used

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  • Array sample laser heating system
  • Array sample laser heating system
  • Array sample laser heating system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0082] to follow figure 1 The designed and fabricated three-beam laser heating system performs laser heating experiments on a {5×5} array of yellow phosphor sample libraries. According to the requirement, use a single beam or a combination of two or three laser beams for heating. In the {5×5} array of yellow phosphor sample libraries, the spacing of each sample in the X-axis direction is 14 mm, which is consistent with the spacing of the laser beam, and the spacing of the samples in the Y-axis direction is 12 mm. The movement of the stage matches the heating position of the sample with the laser beam, realizing fixed-point heating. The laser beam passes through the window on the sealed cabin to heat the sample. The main control computer 109 adjusts the laser power, heating time and the moving position of the two-dimensional sample moving table to make the heating of each sample in the array sample reach the target setting value. The gas products released during the sample he...

Embodiment 2

[0089] Taking the heating of ceramic samples as an example, optimize the best observation parameters of the high-speed camera to achieve clear and accurate video recording. Single-beam laser heating is adopted, and the heating power adjustment range is 30-90W. Adjust the beam expander so that the diameter of the laser irradiation spot is 6 mm. According to the working distance of the lens, adjust the camera to the focus position. Selected filter models: wavelength 520 nm (green light) and 650 nm (red light); attenuation filter models: transmittance 2% and 0.1%. Sample heating image recording effect see Figure 6 shown.

[0090] The first group of heating imaging effect comparison: when the attenuation film is not used, only the filter (wavelength 520 nm and 650 nm) is added, if the laser power is heated above 60W, due to the strong radiation emitted by the sample when it is heated to high temperature The halo causes the image spot to appear as a white radial spot, and the ...

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Abstract

The array sample laser heating system provided by the present invention includes: a laser light source unit that outputs laser light to provide heating energy, and has a plurality of lasers arranged in parallel or in an array; a laser that is arranged downstream of the laser light source unit to change the laser spot size The beam spot adjustment unit; the sample stage for placing the array sample; the temperature measurement unit for measuring the laser heating temperature of the array sample to be heated and feeding back the heating effect; the image recording unit for recording the experimental results; and the laser light source Unit, temperature measurement unit, and image recording unit are connected to the master control unit. The invention can realize multi-beam parallel and adjustable beam spot laser heating, and is used for rapid and directional heating of material array samples required for material genetic engineering.

Description

technical field [0001] The invention relates to the technical field of material heat treatment, in particular to a laser heating system for array samples. Background technique [0002] The rapid experimental method is one of the three cores of material genetic engineering, and the material library (Material library) preparation and characterization technology is a typical representative of the rapid experimental method, which can quickly obtain the data of sample component screening / performance optimization, and achieve half of the research and development time and the goal of halving the cost, and provide an experimental data basis for materials informatics and artificial intelligence to mine new materials. In the material sample library preparation technology, the multi-channel parallel synthesis array sample library is an important branch, which can realize the rapid preparation of multiple samples, and the spatial scale and volume of each independent sample in the sample...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N1/44
CPCB23K26/362B23K26/361B23K26/702
Inventor 刘茜余野建定汪超越李勤徐小科周真真
Owner SHANGHAI INST OF CERAMIC CHEM & TECH CHINESE ACAD OF SCI
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