English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/137437
Share/Impact:
Statistics
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar a otros formatos:
Title

High thermal stability of microwave sintered low-ε r β-eucryptite materials

AuthorsBenavente, Rut; Salvador, M. D.; Peñaranda-Foix, Felipe L.; García Moreno, Olga ; Borrell, Amparo
KeywordsMicrowave processing
Thermal expansion
Ceramics
Dielectric properties
Microstructure-final
Issue Date2015
PublisherElsevier
CitationCeramics International 41(10A): 13817-13822 (2015)
AbstractLow-temperature sinterable microwave LiAlSiO-based solid-state material was investigated with regard to microwave dielectric properties as functions of the sintering temperature. β-eucryptite materials and alumina-reinforced β-eucryptite composites were sintered by microwave technology at 1100°C and 1200°C. The combination of fast heating and the dramatic reduction in cycle time, along with the non-conventional heating source, opens the way to produce materials with desired multifunctional properties. The microstructure and crystalline composition of the materials were characterised, and the mechanical, thermal and microwave dielectric behaviours were analysed. X-ray diffraction showed good chemical stability in materials without between-phase reactions during the microwave sintering process. The excellent mechanical (∼8 GPa of hardness and ∼100 GPa of Young's modulus), thermal (-0.23·10 K) and microwave dielectric properties (ε =4.10; Q=1494) were obtained from the LAS/AlO composites sintered at a very low temperature (1100°C). The results achieved show the possibility of designing ceramic nanocomposites at low sintering temperatures using microwave technology with near-zero thermal expansion coefficients, high mechanical and chemical stability and low dielectric properties.
URIhttp://hdl.handle.net/10261/137437
DOI10.1016/j.ceramint.2015.08.066
Identifiersdoi: 10.1016/j.ceramint.2015.08.066
issn: 0272-8842
e-issn: 1873-3956
Appears in Collections:(CINN) Artículos
Files in This Item:
File Description SizeFormat 
accesoRestringido.pdf15,38 kBAdobe PDFThumbnail
View/Open
Show full item record
 

Related articles:


WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.