Al2O3/YAG composite powders have been synthesised by reverse strike precipitation. The powders were characterised by DTA/TG simultaneous analysis, the phase evolution was studied by XRD analysis, while the crystallite formation and growth were followed by TEM observations. A fully dense, homogenous material was obtained by sintering 900°C pre-treated powders at 1600°C for 3 h. For limiting grain growth, both a doping with 500 ppm MgO followed by a free sintering and a fast sintering procedure involving a high heating rate (50°C/min) were performed. The sintered bodies were then characterised by SEM observation and Vickers indentation. Moreover, a numerical model was employed in order to estimate the mechanical properties of the composite materials starting fromthe single constituent phase properties.

Alumina-YAG composites: preparation, experimental characterization and numerical modelling / Cannillo, Valeria; P., Palmero; Manfredini, Tiziano; L., Montanaro. - In: INTERNATIONAL JOURNAL OF MATERIALS & PRODUCT TECHNOLOGY. - ISSN 0268-1900. - STAMPA. - 35:3-4(2009), pp. 392-406. [10.1504/ijmpt.2009.025689]

Alumina-YAG composites: preparation, experimental characterization and numerical modelling

CANNILLO, Valeria;MANFREDINI, Tiziano;
2009

Abstract

Al2O3/YAG composite powders have been synthesised by reverse strike precipitation. The powders were characterised by DTA/TG simultaneous analysis, the phase evolution was studied by XRD analysis, while the crystallite formation and growth were followed by TEM observations. A fully dense, homogenous material was obtained by sintering 900°C pre-treated powders at 1600°C for 3 h. For limiting grain growth, both a doping with 500 ppm MgO followed by a free sintering and a fast sintering procedure involving a high heating rate (50°C/min) were performed. The sintered bodies were then characterised by SEM observation and Vickers indentation. Moreover, a numerical model was employed in order to estimate the mechanical properties of the composite materials starting fromthe single constituent phase properties.
2009
35
3-4
392
406
Alumina-YAG composites: preparation, experimental characterization and numerical modelling / Cannillo, Valeria; P., Palmero; Manfredini, Tiziano; L., Montanaro. - In: INTERNATIONAL JOURNAL OF MATERIALS & PRODUCT TECHNOLOGY. - ISSN 0268-1900. - STAMPA. - 35:3-4(2009), pp. 392-406. [10.1504/ijmpt.2009.025689]
Cannillo, Valeria; P., Palmero; Manfredini, Tiziano; L., Montanaro
File in questo prodotto:
Non ci sono file associati a questo prodotto.
Pubblicazioni consigliate

Licenza Creative Commons
I metadati presenti in IRIS UNIMORE sono rilasciati con licenza Creative Commons CC0 1.0 Universal, mentre i file delle pubblicazioni sono rilasciati con licenza Attribuzione 4.0 Internazionale (CC BY 4.0), salvo diversa indicazione.
In caso di violazione di copyright, contattare Supporto Iris

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11380/583861
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 3
  • ???jsp.display-item.citation.isi??? 1
social impact