Densification and mechanical behavior of HfC and HfB2 fabricated by Spark Plasma Sintering (Articolo in rivista)

Type

• Articolo in rivista (Classe)
• Prodotto della ricerca (Classe)

Label

• Densification and mechanical behavior of HfC and HfB2 fabricated by Spark Plasma Sintering (Articolo in rivista) (literal)

Anno

• 2008-01-01T00:00:00+01:00 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi

• 10.1111/j.1551-2916.2007.02248.x (literal)

Alternative label

• Diletta Sciti; Stefano Guicciardi; Mats Nygren (2008)
  Densification and mechanical behavior of HfC and HfB2 fabricated by Spark Plasma Sintering
  in Journal of the American Ceramic Society
  (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori

• Diletta Sciti; Stefano Guicciardi; Mats Nygren (literal)

Pagina inizio

• 1433 (literal)

Pagina fine

• 1440 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url

• http://onlinelibrary.wiley.com/doi/10.1111/j.1551-2916.2007.02248.x/abstract (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume

• 91 (literal)

Rivista

• Journal of the American Ceramic Society (Rivista)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#note

• In: Journal of the American Ceramic Society, vol. 91 (5) pp. 1433 - 1440. Presented at the AFOSR Workshop on Ultra-High-Temperature Ceramic Materials hosted by SRI International, July 23-25, 2007. Wiley on behalf of the American Ceramic Society (ACerS), 2008. (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali

• 8 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo

• 5 (literal)

Note

• ISI Web of Science (WOS) (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni

• Diletta Sciti, Stefano Guicciardi (CNR-ISTEC, Institute of Science and Technology for Ceramics, I-48018 Faenza, Italy) Mats Nygren (Arrhenius Laboratory, Department of Inorganic Chemistry, Stockholm University, SE-10691 Stockholm, Sweden) (literal)

Titolo

• Densification and mechanical behavior of HfC and HfB2 fabricated by Spark Plasma Sintering (literal)

Abstract

• Hafnium diboride (HfB2)- and hafnium carbide (HfC)-based materials containing MoSi2 as sintering aid in the volumetric range 1%-9% were densified by spark plasma sintering at temperatures between 17501 and 1950°C. Fully dense samples were obtained with an initial MoSi2 content of 3 and 9 vol% at 17501-1800°C. When the doping level was reduced, it was necessary to raise the sintering temperature in order to obtain samples with densities higher than 97%. Undoped powders had to be sintered at 21001-2200°C. For doped materials, fine microstructures were obtained when the thermal treatment was lower than 1850°C. Silicon carbide formation was observed in both carbideand boride-based materials. Nanoindentation hardness values were in the range of 25-28 GPa and were independent of the starting composition. The nanoindentation Young's modulus and the fracture toughness of the HfB2-based materials were higher than those of the HfC-based materials. The flexural strength of the HfB2-based material with 9 vol% of MoSi2 was higher at 1500°C than at room temperature. (literal)

Prodotto di

• Produzione e caratterizzazione di materiali ceramici compositi funzionali elettroconduttivi e ad alta lavorabilità. (SP.P01.033.002) (Modulo)
• Institute of science and technology for ceramics (ISTEC) (Istituto)

Autore CNR

• STEFANO GUICCIARDI O GUIZZARDI (Persona)
• DILETTA SCITI (Unità di personale interno)

Incoming links:

Prodotto

• Institute of science and technology for ceramics (ISTEC) (Istituto)
• Produzione e caratterizzazione di materiali ceramici compositi funzionali elettroconduttivi e ad alta lavorabilità. (SP.P01.033.002) (Modulo)

Autore CNR di

• DILETTA SCITI (Unità di personale interno)
• STEFANO GUICCIARDI O GUIZZARDI (Persona)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#rivistaDi

• Journal of the American Ceramic Society (Rivista)