High-pressure synchrotron studies on TiO2-II nanocrystallite doped with SnO2

W. Luo, Y. Z. Ma, G. T. Zou, H. K. Mao, Z. C. Wang, Y. Wang

Research output: Contribution to journalArticlepeer-review


We have studied the high-pressure and high-temperature behaviour of α-PbO2-type TiO2-SnO2 (5 mol%) nanocomposite up to 62.3 GPa and 1700 K in a laser-heated diamond-anvil cell by means of synchrotron energy-dispersive x-ray diffraction. We found that it transforms to the baddeleyite phase at 19.4 GPa at room temperature. This phase was stable up to about 40 GPa. At 62.3 GPa and 1700 K, the diffraction pattern showed that there exists another nonquenchable phase. We discussed the mechanisms for these high-pressure transformations in α-PbO2-type TiO2-SnO2 (5 mol%) nanocomposite.

Original languageEnglish (US)
Pages (from-to)11069-11075
Number of pages7
JournalJournal of Physics Condensed Matter
Issue number44 SPEC ISS.
StatePublished - Nov 11 2002

All Science Journal Classification (ASJC) codes

  • General Materials Science
  • Condensed Matter Physics


Dive into the research topics of 'High-pressure synchrotron studies on TiO2-II nanocrystallite doped with SnO2'. Together they form a unique fingerprint.

Cite this