Spark plasma sintering behavior of nano-sized (Ba, Sr)TiO3 powders: Determination of sintering parameters yielding nanostructured ceramics

J Liu, Z Shen, M Nygren, B Su, TW Button

Research output: Contribution to journalArticle (Academic Journal)peer-review

48 Citations (Scopus)

Abstract

Nano-powders of BaTiO3, SrTiO3, Ba0.6Sr0.4TiO3 (BST64), and a mixture of the composition (BaTiO3)0.6(SrTiO3)04 with particle sizes in the range of 60–80 nm were consolidated by spark plasma sintering (SPS). An experimental procedure is outlined that allows the determination of a "kinetic window," defined as the temperature interval within which the densification process can be kinetically separated from the grain growth one, enabling preparation of dense nanostructured ceramics. The width of this window varied from almost zero for BST64 to 125°C for the (BaTiO3)0.6(SrTiO3)0.4 mixture. During the densification (sintering) of the (BaTiO3)0.6(SrTiO3)04 mixture, BST64 is formed. The main part of this reaction occurs in a fully densified body through which suggesting that the constitutional phase(s) have a self-pinning effect on the grain growth.
Translated title of the contributionSpark plasma sintering behavior of nano-sized (Ba, Sr)TiO3 powders: Determination of sintering parameters yielding nanostructured ceramics
Original languageEnglish
Pages (from-to)2689 - 2694
Number of pages6
JournalJournal of the American Ceramic Society
Volume89 (9)
DOIs
Publication statusPublished - Sep 2006

Bibliographical note

Publisher: American Ceramic Society

Fingerprint Dive into the research topics of 'Spark plasma sintering behavior of nano-sized (Ba, Sr)TiO<sub>3</sub> powders: Determination of sintering parameters yielding nanostructured ceramics'. Together they form a unique fingerprint.

Cite this