Pressure and temperature diagram of polymerized fullerite
authors Marques, L; Hodeau, JL; NunezRegueiro, M; Perroux, M
journal PHYSICAL REVIEW B
keywords C-60; SUPERHARD; CARBON; PHASE; C60; GPA
abstract We have systematically studied the temperature-pressure diagram of C-60 at pressures between 37 kbar and 80 kbar and from room temperature to 900 degrees C. We show here the specific role played by the temperature in the phase transformations observed in the P-T region covered by this study. As temperature is increased, we follow the continuous transformation of fee fullerite to an orthorhombic phase of polymerized C-60 chains that, at higher temperature, polymerize to two-dimensional C-60 polymers. Above 800 - 900 degrees C the C-60 cage collapses with formation of an sp(2) amorphous phase. The continuous evolution of the x-ray patterns during these phase transformations is explained on the basis of a homogeneous solid-state polymerization.
publisher AMERICAN PHYSICAL SOC
issn 0163-1829
year published 1996
volume 54
issue 18
beginning page 12633
ending page 12636
web of science category Physics, Condensed Matter
subject category Physics
unique article identifier WOS:A1996VT68200003
  ciceco authors
  impact metrics
journal analysis (jcr 2019):
journal impact factor 3.575
5 year journal impact factor 3.511
category normalized journal impact factor percentile 70.187
altmetrics (social interaction):



 


Apoio

1suponsers_list_ciceco.jpg