Journal of Theoretical and Applied Physics (JTAP) Scherrer andWilliamson-Hall estimated particle size using XRD analysis for cast aluminum alloys Volume 18 (2024) Special Issue-AICIS’23 2024 07 26 Scherrer andWilliamson-Hall estimated particle size using XRD analysis for cast aluminum alloys 10.57647/j.jtap.2024.si-AICIS23.17 EN Sukaina Iskandar Yusuf Collage of Education for Pure Science, Physics Department, Tikrit University, Iraq Sabri Jasim Mohammad Collage of Education for Pure Science, Physics Department, Tikrit University, Iraq Mohsin Hasan Ali Collage of Education for Pure Science, Physics Department, Tikrit University, Iraq Journal Article 2024 07 26 Aluminum metal matrix composites find applications in several industries, such as aerospace, military, cars, sports equipment, and electronics. The primary bjective of this experimental study is to obtain insights into the microstructural properties of an Al-Zn alloy that has been strengthened with copper. This investigation involved the preparation of an alloy including aluminum and zinc, which was afterward reinforced with varying quantities (0%, 0.4%, 1.2%, and 2%) of copper. In addition to conducting XRD tests to investigate the crystallite structure, particle size, and microscopic strain of the samples using the Scherrer and Williamson-Hall models, structural examinations were carried out using the EDS test to ascertain the elemental composition proportions. It was observed that the alloy (A-Zn-0.4%Cu) has smaller particle sizes than the other alloys under consideration.