关于通过对检测到的反射进行索引来自动确定准晶的方向
1Institute of Metallurgy and Materials Science, Polish Academy of Sciences, Reymonta 25, Krakow, 30-059, Poland.
概括
这项研究适应了现有的晶体定向映射软件,用于准晶体. 修改后的程序成功地为这些复杂的,非周期性材料生成了方向图.
科学领域:
- 材料科学 材料科学 材料科学
- 晶体学 晶体学是指结晶学.
- 计算材料科学科学 计算材料科学
背景情况:
- 自动结晶方向确定和映射对于研究多晶材料至关重要.
- 目前的方法主要是针对周期性晶体而设计的,并不能直接适用于准晶体材料.
研究的目的:
- 调整现有的软件以自动确定晶体方向和绘制地图,以成功分析准晶体材料.
- 通过一个icosahedral多晶体的方向图来证明修改后的软件的适用性.
主要方法:
- 修改了原先为周期性晶体方向确定而设计的现有软件.
- 实施了必要的变化,以处理准晶体独特的衍射特性.
- 应用了修改后的软件来生成一个icosahedral多晶体的方向图.
主要成果:
- 修改后的软件成功地执行了准晶体的方向确定和映射.
- 创建了一个icosahedral多晶体的示例导向图,展示了该程序的功能.
- 该研究验证了周期性晶体软件对准晶体材料的适应性.
结论:
- 现有的晶体定向映射软件可以有效地修改为准晶体材料.
- 适应的软件为准晶体的方向映射提供了一个可行的工具.
- 这一进步有助于研究准晶材料的微结构性质.
相关概念视频
02:18X-ray Crystallography
24.0K
The size of the unit cell and the arrangement of atoms in a crystal may be determined from measurements of the diffraction of X-rays by the crystal, termed X-ray crystallography.
Diffraction
Diffraction is the change in the direction of travel experienced by an electromagnetic wave when it encounters a physical barrier whose dimensions are comparable to those of the wavelength of the light. X-rays are electromagnetic radiation with wavelengths about as long as the distance between neighboring...
Diffraction
Diffraction is the change in the direction of travel experienced by an electromagnetic wave when it encounters a physical barrier whose dimensions are comparable to those of the wavelength of the light. X-rays are electromagnetic radiation with wavelengths about as long as the distance between neighboring...
24.0K
01:10X-ray Diffraction of Biological Samples
3.9K
X-ray diffraction or XRD is an analytical tool that utilizes X-rays to study ordered structures such as crystalline organic and inorganic samples, polycrystalline materials, proteins, carbohydrates, and drugs.
According to Bragg's law, when X-rays strike the sample positioned on a stage, the rays are scattered by the electron clouds around the sample atoms. The X-ray diffraction or scattering is caused by constructive interference of the X-ray waves that reflect off the internal...
According to Bragg's law, when X-rays strike the sample positioned on a stage, the rays are scattered by the electron clouds around the sample atoms. The X-ray diffraction or scattering is caused by constructive interference of the X-ray waves that reflect off the internal...
3.9K