A polymer solution technique for the synthesis of nano-sized Li2TiO3 ceramic breeder powders

Choong Hwan Jung, Sang Jin Lee, Waltraud M. Kriven, Ji Yeon Park, Woo Seog Ryu

Research output: Contribution to journalArticlepeer-review

Abstract

Nano-sized Li2TiO3 powder was fabricated by an organic-inorganic solution route. A steric entrapment route employing ethylene glycol was used for the preparation of the nano-sized Li2TiO3 particles. Titanium isopropoxide and lithium nitrate were dissolved in liquid-type ethylene glycol without any precipitation. With the optimum amount of the polymer, the metal cations (Li and Ti) were dispersed in the solution and a homogeneous polymeric network was formed. The organic-inorganic precursor gels were turned to crystalline powders through an oxidation reaction during a calcination process. The dried precursor gel showed the carbon-free Li2TiO3 crystalline form which was observed above 400 °C. The primary particle size of the carbon-free Li2TiO3 was about 70 nm, and the structure of the crystallized powder was porous and agglomerated. The powder compact was densified to 92% of TD at a relatively low sintering temperature of 1100 °C for 2 h.

Original languageEnglish (US)
Pages (from-to)194-198
Number of pages5
JournalJournal of Nuclear Materials
Volume373
Issue number1-3
DOIs
StatePublished - Feb 15 2008

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Materials Science(all)
  • Nuclear Energy and Engineering

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