Irregularly-shaped solid sample injector for X-ray powder diffractometer

Abstract

The invention relates to an irregularly-shaped solid sample injector for an X-ray powder diffractometer,which relates to an auxiliary device for the X-ray powder diffractometer, the solid sample injector is made of stainless steel as a whole, and a cylindrical sample cabin (1) with the diameter of 30mm and the height of 30mm is jointly constructed by an upper cover (10), a cabin wall (2) and a base (4); a sample tray (7) is fixed on the lifting column (5) through a stud, a nut and a gasket; the sample tray (7) consists of two parts, namely a flexible contact (8) and a sample fixing frame (9); an upper cover (10) and the cabin wall (2) are connected through welding, and three horizontal contacts are fixed on the upper cover and can rotate horizontally. When the injector is used for testing irregular solid samples, accurate diffraction data and diffraction patterns can be obtained, and the problem that the upper surface of the XRD cannot be perfectly overlapped with the axis of a diffractometer and is tangent to a focusing circle when the irregular solid samples are tested is effectively solved.

Description

technical field [0001] The invention relates to an auxiliary device for an X-ray powder diffractometer, in particular to an irregular-shaped solid sample injector for an X-ray powder diffractometer. Background technique [0002] X-ray powder diffraction (X-Ray diffraction, XRD for short) is a method of irradiating the surface of polycrystalline powder or bulk with characteristic X-ray spectrum to obtain diffraction patterns and data. Through the analysis of spectra and data, we can understand the phase composition of crystalline materials such as industrial waste, minerals, catalysts, functional materials, etc.; we can conduct quantitative and semi-quantitative analysis of most crystalline substances; we can analyze the grain size and Calculation of the crystallinity of crystalline substances; structure analysis of unknown substances and structure refinement of known substances, etc. [0003] XRD has been widely used as a testing instrument for analyzing the composition and...

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide an irregular shape solid sampler for X-ray powder diffractometer. The present invention effectively solves the problem that the upper surface of XRD cannot perfectly coincide with the axis of the diffractometer when testing irregular solid samples. Focus on the problem of circular tangency, so that ideal results can be obtained during sample testing, and provide the most detailed and realistic data and spectra for further application of the results

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