Method for analyzing and predicting formability of MAX-phase material

A 413-MAX and 312-MAX technology, applied in visual data mining, special data processing applications, structured data retrieval, etc., can solve problems such as time-consuming, low prediction accuracy, and expensive testing costs, and achieve cost savings, The effect of reducing consumption

Inactive Publication Date: 2020-06-12
XI AN JIAOTONG UNIV
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  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the problems of time-consuming crystal structure stability prediction methods in the prior art, high test cost and low prediction accuracy, the present invention provides a method for analyzing and predicting the ability to form MAX phase materials,

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  • Method for analyzing and predicting formability of MAX-phase material
  • Method for analyzing and predicting formability of MAX-phase material
  • Method for analyzing and predicting formability of MAX-phase material

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Embodiment Construction

[0031] The present invention will be further described in detail below with reference to the accompanying drawings, which is an explanation rather than a limitation of the present invention.

[0032] Refer to figure 1 , A method for analyzing and predicting the forming ability of MAX phase materials, including the following steps:

[0033] Step S1: Select characteristic factors that affect the stability of the material structure;

[0034] Specifically, in this step S1, the following characteristic factors are selected based on Hume-Rothery and Barsoum's exploration of the alloy law and MAX phase electronic structure, as shown in the following table:

[0035]

[0036] Step S2: Establish a structure mapping model for predicting the formation ability of MAX phase based on the selected feature factors.

[0037] Specifically, in this step S2, two characteristic equations are further established by selecting the electron concentration factor and the size factor, respectively:

[0038]

[0039]...

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Abstract

The invention discloses a method for analyzing and predicting the formability of an MAX phase material. The method includes: selecting characteristic factors influencing the material structure; designing a feature model influencing the MAX phase structure on the basis of the selected feature factor; physical parameters are input to construct a structure mapping graph, MAX phase structures are distributed according to different areas in the structure mapping graph, various structures are classified according to the physical parameters calibrated by coordinates and serve as initial guidance forpredicting an unknown MAX phase, and then the unknown structure of a new material can be predicted through the method. The method is a method which is relatively successful at present and does not need to be helped by experiments to carry out structure prediction. Moreover, the method provided by the invention can greatly reduce the consumption of manpower and computing resources, saves the cost,and provides theoretical guidance for the synthesis of high-performance MAX-phase materials.

Description

Technical field [0001] The invention relates to the field of materials science, in particular to a method for analyzing and predicting the forming ability of a ternary layered carbide or nitride material, in particular to a method for analyzing and predicting the forming ability of a MAX phase material. Background technique [0002] There is a close relationship between material structure and performance. Therefore, the study of material structure runs through the entire course of the development of materials science and will continue to occupy an important position in the research of materials science. Nowadays, the acquisition of material structure information is also a prerequisite for modeling and analysis of various materials; therefore, the determination of material structure is a key step for further understanding and analysis of material properties. [0003] MAX phase material (Molecular formula is M n+1 AX n , N=1, 2 or 3) is a new layered machinable cermet material with h...

Claims

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Application Information

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IPC IPC(8): G06F30/20G06F16/26
CPCG06F16/26
Inventor 丁向东毛泽宇
Owner XI AN JIAOTONG UNIV
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