High-throughput thermoelectric performance characterization method based on continuous composition bulk materials and its application
A thermoelectric performance, high-throughput technology, applied in the direction of thermal development of materials, etc., can solve the problem that the efficiency of the detection method is not ideal and cannot meet the needs of rapid component screening, and achieve the effect of rapid screening
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0020] In this example, see figure 1 , the three elements M, N, R are fed into the multi-reaction synthesis chamber through automatic control, the content of R in the raw material is controlled, and the continuous composition sample M is prepared by pulse current or laser ignition. a N b-c R c , c varies from 0 to b along the axis. Cut the sample twice along the radial direction by wire cutting to obtain a thin slice of 100mm*50mm. Taking the thin slice as the detection object, place the thin slice in the conductivity-Seebeck coefficient scanning probe microscope, and then use the conductivity-Seebeck coefficient scanning probe microscope to scan the thin slice quickly point by point to obtain the conductivity and Seebeck coefficient of the thin slice The spatial distribution data of the sheet, and construct the spatial distribution map of the conductivity and Seebeck coefficient of the thin sheet. After the measurement, use mask, photolithography and ion bombardment to ma...
Embodiment 2
[0023] This embodiment is basically the same as Embodiment 1, especially in that:
[0024] In this example, the powders of thermoelectric compound raw material A and doping raw material D are passed through an automatic control feeding system to form a gradient stack, where x is from 0 to x along the axial direction max change, and use spark plasma sintering into a continuous composition block D x A, where A is a compound and D is a doping element. A diamond knife is used to cut thin slices in the radial direction, and a probe is used to scan to obtain spatial data of electrical conductivity and Seebeck coefficient, and images are obtained. Then, use mask, photolithography and ion bombardment to make the sheet into a grid-like array sample, place it on a uniform heating plate, and coat it with thermal conductive glue in the middle. Use an infrared rapid thermal imaging system to measure the temperature distribution on the upper surface. Low means less thermal conductance. F...
PUM
Login to View More Abstract
Description
Claims
Application Information
Login to View More