Melting of colloidal crystals in suspension at the elevated temperatures with and without resins

In this presentation, I will present experimental results of melting of colloidal crystals in suspension obtained from charged colloidal spheres at elevated temperatures as a function of particle number density. The spheres were used after being purified in doubly de-ionized water. Temperature was varied in a range of 10°C to 85°C and Particle number density “n” in the range of 6 µm-³ to 23 µm-³. Experiments were performed with and without resins inside the samples. It has been observed that without resins inside sample, the colloidal crystals in suspension never melt at elevated temperatures. However, the samples with resins show that the melting of crystals in suspension happens due to conductivity differences of colloidal crystals and resins.

Dr. Raheema is an experienced higher education faculty and researcher with around 10 years of international teaching and research experience in physics. She has PhD in complex systems and colloidal materials majoring in Physics. She has worked on Colloidal Phase Transition Dynamics under external electric and magnetic fields at University of Navarra Spain and experimental studies of melting colloidal crystals in suspension influenced by external fields at Johannes Gutenberg University Mainz, Germany. She is currently Engineering faculty member at Higher Colleges of Technology, United Arab Emirate.