Please join us this Tuesday, August 16 in Physics 175 for our next presentation in our PEGASUS Summer Seminar Ser
Our next speaker is Xue Yong, who studies the effects of pressure and temperature on materials.
There will be cookies and refreshments served beforehand at 3:00 pm in the lounge for those attending the seminar.
Title: Structure and dynamics of materials under pressure
Abstract: The response of a material to increasing pressure and temperature is an interesting and practical research that attracts many investigator in geophysics and geochemistry, as well as in material science. High pressure and temperature provide large compression energy (PV) and thermal (TS) energies, which are able to break intermolecular or intra-molecular interactions in most stable materials. Therefore, at extreme conditions, most ambient-pressure liquid and solid materials become unstable and transform into new phases with higher densities. In this talk I am going to present some interesting results bout the response of materials to high pressure by computer simulation. Three examples will be presented. First is the using of high pressure technique to synthesis high energetic materials based extended CO2. Second is the novel interactions of silicate with small molecular gas at high pressure and temperature. Third is the a new sheared – ice-Ih under moderate pressure