Spark plasma sintering of Zr- and Hf-borides with decreasing amounts of MoSi2 as sintering aid (Articolo in rivista)

Type
Label
  • Spark plasma sintering of Zr- and Hf-borides with decreasing amounts of MoSi2 as sintering aid (Articolo in rivista) (literal)
Anno
  • 2008-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1016/j.jeurceramsoc.2007.09.043 (literal)
Alternative label
  • D. Sciti; L. Silvestroni; M. Nygren (2008)
    Spark plasma sintering of Zr- and Hf-borides with decreasing amounts of MoSi2 as sintering aid
    in Journal of the European Ceramic Society
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • D. Sciti; L. Silvestroni; M. Nygren (literal)
Pagina inizio
  • 1287 (literal)
Pagina fine
  • 1296 (literal)
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  • http://www.sciencedirect.com/science/article/pii/S0955221907005262 (literal)
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  • 28 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#note
  • In: Journal of the European Ceramic Society, vol. 28 (6) pp. 1287 - 1296. Elsevier Sci Ltd, 2008. (literal)
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  • 10 (literal)
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • D. Sciti, L. Silvestroni (ISTEC-CNR, Institute for Science and Technology of Ceramics, Via Granarolo 64, I-48018 Faenza, Italy) M. Nygren (Department of Inorganic Chemistry, Arrhenius Laboratory, Stockolm University, SE-10691 Stockolm, Sweden) (literal)
Titolo
  • Spark plasma sintering of Zr- and Hf-borides with decreasing amounts of MoSi2 as sintering aid (literal)
Abstract
  • ZrB2- and HfB2-based composites containing 1, 3, and 9 vol.% MoSi2 as sintering aid were densified by spark plasma sintering at temperatures ranging from 1700 to 1950°C, with an applied pressure of 100MPa. As received ZrB2 and HfB2 powders were also sintered at temperatures in the range of 2100-2200°C. Fully dense samples were obtained between 1750 and 1850°C when MoSi2 was added. As received ZrB2 powder was sintered to 98% at 2100°C. The microstructural features were investigated by means of SEM-EDS technique. Silicon carbide was detected in all the doped compositions along with significant amounts of oxide species (Hf/ZrO2 and SiO2). Vickers hardness and fracture toughness were measured by indentation technique on polished sections. The effect of the MoSi2 content on densification,microstructure and mechanical properties is discussed. (literal)
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