Porous material pore space boundary extracting and quantization method

Abstract

The invention discloses a method for extracting and quantizing pore boundary of porous materia, comprising the following steps: a microscopic pore structure image of a plurality of parallel sections of a porous material to be detected is taken; a plurality of the pore structure images are respectively transmitted to a computer to be pretreated; the boundary of a black image area and a white image area, namely the pore boundary, in a black and white pore structure image is extracted and marked; the marked pore boundary is a polygon consisting of a plurality of pixels as vertex points; the two-dimension coordinate value of the vertex points is determined and the vertex points are numbered continuously, thus obtaining the two-dimensional pore boundary; and all the vertex points of all plane polygons in two adjacent two-dimensional pore boundary images are connected in sequence according to the number sequence, thus forming a spatial polygon which is the three-dimensional pore boundary. The invention has the advantages of simple operation and low cost, can quantize the performance parameters of the porous material such as pore appearance, degree of cook of a pore channel, and the like; and can analyze accurately.

Description

technical field [0001] The invention relates to a pore boundary extraction and description method, in particular to a porous material pore boundary extraction and numerical method. Background technique [0002] Porous materials widely exist in nature and engineering applications, and are an important class of structurally and functionally integrated materials. The large number of pores in porous materials makes them have many excellent properties different from dense materials. The application performance of porous materials mainly depends on the characteristics of the pore structure. The parameters of the pore structure are the most important characteristic parameters of the porous materials. The accurate description of the pore structure is the basic problem in the research, manufacture and application of porous materials. However, the scientific description of the pore structure of porous materials becomes extremely complicated due to the different sizes and random distri...

AI Technical Summary

Problems solved by technology

However, the scientific description of the pore structure of porous materials becomes extremely complicated due to the different sizes and random distribution of the pores and the disorder of the pore space structure.

[0003] The description method of the pore structure of conventional porous materials is based on the detection of physical properties under the capillary assumption, which simplifies the pores and pore channels into circular and straight tubes respectively, which is the so-called "circle-straight tube model", using different fluid pressure differences- The equivalent pore size and pore size distribution are calculated from the flow data, which is an approximate description, and due to different detection methods, the results are quite different, and it is difficult to reflect the characteristics of the pore morphology and the degree of curvature of the pore channel.

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