Nose and wing leading edges of the future generations re-entry vehicles will withstand very high temperature in an oxidizing environment. UHTC (Ultra High Temperature Ceramics) materials are very promising candidate materials for such applications. An innovative, proprietary methodology was developed to produce, by plasma spraying deposition, a ceramic composite containing SiC particles (25 wt %) dispersed in a ZrB2 matrix. With such a technique both coatings and self standing parts were fabricated. In spite of the well known difficulty to obtain plasma sprayed coatings containing SiC, characterization results evidenced that the used process did not affect the phase composition. The high temperature behaviour of such a composite was characterised and the formation of a passivation layer, composed by mixed oxides of Si and Zr, was assessed, thus confirming that the developed material can withstand high temperatures in oxidizing atmosphere, as requested by the envisaged application.

High temperature characterization of an UHTC candidate materials for RLV's / M., Tului; G., Marino; Valente, Teodoro. - In: ESA SP. - ISSN 0379-6566. - 521(2003), pp. 161-165. (Intervento presentato al convegno Hot Structures and Thermal Protection Systems for Space Vehicles tenutosi a Palermo nel 26 November 2002 through 29 November 2002).

High temperature characterization of an UHTC candidate materials for RLV's

VALENTE, Teodoro
2003

Abstract

Nose and wing leading edges of the future generations re-entry vehicles will withstand very high temperature in an oxidizing environment. UHTC (Ultra High Temperature Ceramics) materials are very promising candidate materials for such applications. An innovative, proprietary methodology was developed to produce, by plasma spraying deposition, a ceramic composite containing SiC particles (25 wt %) dispersed in a ZrB2 matrix. With such a technique both coatings and self standing parts were fabricated. In spite of the well known difficulty to obtain plasma sprayed coatings containing SiC, characterization results evidenced that the used process did not affect the phase composition. The high temperature behaviour of such a composite was characterised and the formation of a passivation layer, composed by mixed oxides of Si and Zr, was assessed, thus confirming that the developed material can withstand high temperatures in oxidizing atmosphere, as requested by the envisaged application.
2003
Hot Structures and Thermal Protection Systems for Space Vehicles
04 Pubblicazione in atti di convegno::04c Atto di convegno in rivista
High temperature characterization of an UHTC candidate materials for RLV's / M., Tului; G., Marino; Valente, Teodoro. - In: ESA SP. - ISSN 0379-6566. - 521(2003), pp. 161-165. (Intervento presentato al convegno Hot Structures and Thermal Protection Systems for Space Vehicles tenutosi a Palermo nel 26 November 2002 through 29 November 2002).
File allegati a questo prodotto
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/166197
 Attenzione

Attenzione! I dati visualizzati non sono stati sottoposti a validazione da parte dell'ateneo

Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 6
  • ???jsp.display-item.citation.isi??? ND
social impact