Synthesis, phase and structural analysis of compounds in the system Gd2-xNdxZr2O7 (0.0 ≤ × ≤ 2.0)

Xi Rui Lu, Fa Qin Dong, Gongbao Song, Mingjie Ning, Si Jin Su, Weimin Li, Yan Lin Wu

Research output: Contribution to journalConference articlepeer-review

3 Citations (Scopus)

Abstract

A series of compounds with the general formula Gd2- xNdxZr2O7 (0.0 ≤ × ≤ 2.0) was synthesized by high-temperature solid state method and characterized by powder X-ray diffraction. Trivalent neodymium was used as the surrogate for americium with three valences, an actinide found in radioactive nuclear wastes. The X-ray diffraction patterns show that the whole system of Gd 2-xNdxZr2O7 (0.0 ≤ × ≤ 2.0) consistently possesses the pyrochlore structure. In order to get the accurate data of structural changes of zirconate pyrochlores incorporating Am3+, the Rietveld structural refinement method was employed to calculate the crystal cell parameters of zirconate pyrochlores. The calculated results indicated that the value of x in the system Gd2-xNd xZr2O7 (0.0 ≤ × ≤ 2.0) and the crystal cell parameter a accord with a = 10.52696 + 0.07036 x, x and the volume of crystal cell V follow the relation of V = 1166.45459 + 23.72163 x.

Original languageEnglish
Pages (from-to)403-407
Number of pages5
JournalEnergy Procedia
Volume39
DOIs
Publication statusPublished - 2013 Jan 1
Externally publishedYes
Event3rd International Conference on Asian Nuclear Prospects, ANUP 2012 - Beijing, China
Duration: 2012 Oct 162012 Oct 19

Keywords

  • Phase
  • Structural analysis
  • Zirconate pyrochlore

ASJC Scopus subject areas

  • Energy(all)

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