Investigations of pressure induced structural phase transformations in pentaerythritol |
| |
Authors: | Nandini Garg Surinder M. Sharma |
| |
Affiliation: | a Synchrotron Radiation Section, Bhabha Atomic Research Centre, Trombay, Mumbai 400085, India b Office of the Principal Scientific Adviser to Government of India, Vigyan Bhavan Annexe, Maulana Azad Road, New Delhi 110011, India |
| |
Abstract: | We have investigated the pressure induced structural changes in pentaerythritol {2,2-bis-(hydroxymethyl)-1,3-propanediol} with the help of X-ray diffraction studies. Our results show that this compound undergoes transformations to a lower symmetry phase between 5.2-5.9 GPa. It further undergoes phase transformations at ∼8.5 and ∼11 GPa; eventually evolving to a disordered phase beyond 14-15 GPa in agreement with our earlier Raman studies. On release of pressure from 18.5 GPa, the compound transforms back to the initial tetragonal phase. |
| |
Keywords: | 61.50.ks 62.50.+p 61.10.Nz 64.70.kb |
本文献已被 ScienceDirect 等数据库收录! |
|