Oxidation behaviour of a pressureless sintered ZrB2-MoSi2 ceramic composite (Articolo in rivista)

Type
Label
  • Oxidation behaviour of a pressureless sintered ZrB2-MoSi2 ceramic composite (Articolo in rivista) (literal)
Anno
  • 2005-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1557/JMR.2005.0111 (literal)
Alternative label
  • Diletta Sciti; Mylène Brach; Alida Bellosi (2005)
    Oxidation behaviour of a pressureless sintered ZrB2-MoSi2 ceramic composite
    in Journal of materials research
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Diletta Sciti; Mylène Brach; Alida Bellosi (literal)
Pagina inizio
  • 922 (literal)
Pagina fine
  • 930 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url
  • http://journals.cambridge.org/action/displayAbstract?fromPage=online&aid=8029025 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 20 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali
  • 9 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
  • 4 (literal)
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • CNR-ISTEC, Institute of Science and Technology for Ceramics, I-48018 Faenza, Italy (literal)
Titolo
  • Oxidation behaviour of a pressureless sintered ZrB2-MoSi2 ceramic composite (literal)
Abstract
  • Ultra-refractory ceramic composites of composition ZrB2 + (5-20) vol% MoSi2 are produced by pressureless sintering at 1830°C under argon atmosphere. Sintering cycles and microstructural analysis point out that at least 20 vol% of molybdenum disilicide is necessary to obtain a dense material. Thereafter, the composite 80 vol% ZrB2+ 20 vol% MoSi2 is used to test the thermal stability under oxidizing environment. Oxidation tests are carried out in flowing synthetic air in a TG equipment from 700 to 1400°C with exposure time of 30 hours. In the low-temperature range (700-1000°C), the oxidation of the composite resembles that of monolithic ZrB2 ceramics, for temperatures >1200°C the silica resulting from oxidation of molybdenum disilicide seals the sample surface, preventing zirconium diboride from fast degradation. (literal)
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