Qualitative X-ray diffraction analysis

This lecture covers the qualitative analysis of X-ray diffraction patterns for cementitious materials, focusing on identifying crystalline phases based on characteristic peak patterns. It discusses the challenges in identifying all phases in cement and the use of selective dissolution to enrich minor phases. The iterative procedure between pattern fitting and identification is highlighted, along with the importance of additional information like microscopic observations and bulk sample chemistry. The lecture emphasizes the significance of a database of trustworthy PDF patterns for rapid manual identification.