Preparation of lithium titanate by sol-gel method

• Autorzy: Deptuła A. , Łada W. , Olczak T. , Sartowska B. , Chmielewski A. , Alvani C. , Casadio S.
• Języki publikacji: EN

Abstrakty

EN

Medium sized spherical particles of Li2TiO3 (with diameters below 100 mi m) can be prepared from peroxy lithium titanate solution (stabilized with citric acid) by a modified INCT variant of the sol-gel process. The process consists of the following main steps: (I) formation of aqueous phase emulsion in 2-ethylhexanol-1 containing the surfactants 1v/o SPAN-80 and 1v/o Ethomen S-15 (EH); (II) gelation of emulsion drops by extraction of water with partially dehydrated EH; (III) filtration and washing with carbon tetrachloride or acetone; (IV) non-destructive thermal treatment. The tritium release from sol-gel process preparation of Li2TiO3 micro-spheres was found very close to that observed for other traditional material however, the new process is more efficient than other processes because of the morphology of the sintered specimens.

• Wydawca: Institute of Nuclear Chemistry and Technology
• Czasopismo: Nukleonika
• Rocznik: 2001
• Tom: Vol. 46, nr 3
• Strony: 95--100
• Opis fizyczny: Bibliogr. 9 poz., rys.

Twórcy

autor

Deptuła A.

• Institute of Nuclear Chemistry and Technology, 16 Dorodna Str., 03-195 Warsaw, Poland, Tel: [phone] ext. 1156, Fax: [phone]

autor

Łada W.

• Institute of Nuclear Chemistry and Technology, 16 Dorodna Str., 03-195 Warsaw, Poland, Tel: [phone] ext. 1156, Fax: [phone]

autor

Olczak T.

• Institute of Nuclear Chemistry and Technology, 16 Dorodna Str., 03-195 Warsaw, Poland, Tel: [phone] ext. 1156, Fax: [phone]

autor

Sartowska B.

• Institute of Nuclear Chemistry and Technology, 16 Dorodna Str., 03-195 Warsaw, Poland, Tel: [phone] ext. 1156, Fax: [phone]

autor

Chmielewski A.

• Institute of Nuclear Chemistry and Technology, 16 Dorodna Str., 03-195 Warsaw, Poland, Tel: [phone] ext. 1156, Fax: [phone]

autor

Alvani C.

• Italian Agency for the New Technologies, Energy and Environment (ENEA), C.R.E. Casaccia, Italy

autor

Casadio S.

• Italian Agency for the New Technologies, Energy and Environment (ENEA), C.R.E. Casaccia, Italy

Bibliografia

• 1.Alvani C, Bruno P, Casadio S et al. (1999) Fabrication of Li2TiO3 pebbles by a sol-gel type (wet) route. European Fusion Technol. Programme, HCPB Blanket (Unit B). Report Doc. INN/NUMA/MATAV(99)1. ENEA, Casaccia
• 2.Alvani C, Carconi PL, Casadio S et al. (2001) Lithium titanate pebbles reprocessing by wet chemistry. J Nucl Mat 289:303–307
• 3.Alvani C, Carconi PL, Casadio S, Pierdominici F (1998) Effect of Li2TiO3 characteristics on tritium release properties by out-of-pile TPD under He+H2(0.1%) gas purging In: Proc of 7th Int Workshop on Ceramic Breeder Blanket Interactions. Jaap van der Laan (NRG), Petten, The Netherland. Vol. 4, pp 694–704
• 4.Boccaccini EV, Albrecht H, Berardinucci Dalle Donne L et al. (1998) The European HCPB test blanket module to be irradiated in ITER, fusion technology 1998. In: Beaumont B, Libeyre Tonon G (eds) Proc of 20th SOFT, Marseille, France. CEA-Cadarache. Vol. B, pp 1255–1258
• 5.Deptuła A, Chmielewski AG, Wood TE (1998) Sol-gel ceramic beads and bubbles – a historical perspective, modern fabrication and cost analysis. In: Vincenzini P (ed) Proc 9th CIMTEC, Florence. Vol. D: Getting into the 2000’s, pp 771–790
• 6.DeptułaA, Olczak T, ¸ada W, Sartowska B, Chmielewski AG,Alvani C, Casadio S (2000) Fabrication of Li2TiO3 spherical microparticles by a classical sol-gel route. Annual Report INCT 1999, Warsaw, pp 82–85
• 7.DeptułaA, Olczak T, ¸ada W, Sartowska B, Chmielewski AG, Alvani C, Casadio S (2001) Fabrication of Li2TiO3 spherical microparticles from TiCl4 by a classical, inorganic sol-gel route; characteristics and tritium release properties. J Mat Sci (in press)
• 8.DeptułaA, Rebandel J, Drozda W, ¸ada W, Olczak T, Chmielewski AG (1992) Production of spherical powders of inorganic compounds by water extraction variant of sol-gel process. In: Hampden-Smith MJ, Klemperer WG Brinker CJ (eds) Better ceramic through chemistry V. MRS Spring Meeting, vol. 270, pp 277–282
• 9.Johnson CE (1999) Tritium behavior in lithium ceramics. J Nucl Mat 270:212–217