Fractal Analysis on X-Ray Diffraction Profiles.

Surface Hardness Measurment and Microstructural Characterisation of Steel by X-Ray Diffraction Profile Analysis

An X-ray diffraction line will broaden considerably when steels change into martensitic structure on quenching. The results presented in this paper show that X-ray diffraction technique can be employed for a rapid and nondestructive measurement of hardness of hardened steel. Measurement on various quenched and tempered steels showed that the breadth of its diffraction peak increased with increa...

X-ray diffraction peak profile analysis of maraged Fe-Ni-Mn steels

X-ray diffraction peak profile analysis was used to identify changes in the lattice distortions during isothermal aging of Fe-10Ni-7Mn (wt. %) maraging steel. Integral peak breadths were analyzed using classical Williamson-Hall equation taking the elastic anisotropy into account. It was found that substantial lattice distortions rise during precipitation hardening which depend strongly on the s...

Model independent pre-processing of X-ray powder diffraction profiles

Precise knowledge of X-ray diffraction profile shape is crucial in the investigation of the properties of matter in crystals powder. Line-broadening analysis is a preprocessing step in most of the full powder pattern fitting softwares. Final result of line-broadening analysis strongly depends on preliminary three steps: Noise filtering, removal of background signal and peak fitting. In this wor...

Calculated Powder X-ray Diffraction Line Profiles via Absorption

We have calculated powder X-ray diffraction (PXRD) line profiles based on the absorption of X-rays in passing through materials. The results showed that the line profile function depends on the absorption coefficient of the sample. The observed aluminum PXRD patterns are in excellent agreement with the calculated line profile functions derived from absorption. This work also demonstrated that b...

X-Ray Diffraction Analysis of GaN/InGaN