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Tailoring Dielectric Properties of Multilayer Composites Using Spark Plasma Sintering
Author(s) -
Elissalde Catherine,
Maglione Mario,
Estournès Claude
Publication year - 2007
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1551-2916.2007.01485.x
Subject(s) - materials science , spark plasma sintering , dielectric , ceramic , composite material , ferroelectricity , curie temperature , stack (abstract data type) , sintering , ferroelectric ceramics , optoelectronics , computer science , programming language , physics , quantum mechanics , ferromagnetism
A straightforward and simple way to produce well‐densified ferroelectric ceramic composites with a full control of both architecture and properties using spark plasma sintering (SPS) is proposed. SPS main outcome is indeed to obtain high densification at relatively low temperatures and short treatment times thus limiting interdiffusion in multimaterials. Ferroelectric/dielectric (BST64/MgO/BST64) multilayer ceramic densified at 97% was obtained, with unmodified Curie temperature, a stack dielectric constant reaching 600, and dielectric losses dropping down to 0.5%, at room‐temperature. This result ascertains SPS as a relevant tool for the design of functional materials with tailored properties.