2005 Salt Lake City Annual Meeting (October 16–19, 2005)

Paper No. 3
Presentation Time: 2:15 PM


MA, Yanzhang1, AKSOY, Resul2 and SELVI, Emre1, (1)Mechanilcal Engineering, Texas Tecch Unoiversity, 7th St. & Boston Ave, Lubbock, TX 79409, (2)Mechanilcal Engineering, Texas Tech University, 7th St. & Boston Ave, Lubbock, TX 79409, emre.selvi@ttu.edu

The MS2 (where M is W or Mo) disulfides have a characteristic anisotropic 2H layered structure similar to graphite. Their compressibility and phase stability which closely related to the boding status are interesting. We performed high pressure x-ray diffraction measurement of WS2 and MoS2 using a diamond anvil cell and the synchrotron x-ray diffraction technique. We found that the c-direction of these sulfides were much more compressible than the a-direction. The MoS2 might also undergo an electronic phase transformation. We will present our comparison and discussion of their compressibility.