Nanocrystalline BaTiO3 powder via a sol process ambient conditions

Xinyu Wang; Burtrand I. Lee; Michael Hu; E. Andrew Payzant; Douglas A. Blom

doi:10.1016/j.jeurceramsoc.2005.04.002

Nanocrystalline BaTiO₃ powder via a sol process ambient conditions

Xinyu Wang, Burtrand I. Lee, Michael Hu, E. Andrew Payzant, Douglas A. Blom

Materials Engineering

Research output: Contribution to journal › Article › peer-review

30 Scopus citations

Abstract

Nanocrystalline BaTiO₃ particles have been prepared by ambient condition sol (ACS) process starting from soluble precursors of barium and titanium yielding a mixed oxide/hydroxide gel. The gel was peptized and crystallized in water under a refluxing condition. Higher initial pH and Ba/Ti ratio led to smaller crystallite sizes of BaTiO₃ powders. Organic mineralizer, tetramethylammonium hydroxide (TMAH), can adsorb on the BaTiO₃ nuclei and inhibited further growth of the particles. Adding a polymer during BaTiO₃ synthesis led to a smaller particle size and increased redispersibility of the particles in water.

Original language	English
Pages (from-to)	2319-2326
Number of pages	8
Journal	Journal of the European Ceramic Society
Volume	26
Issue number	12
DOIs	https://doi.org/10.1016/j.jeurceramsoc.2005.04.002
State	Published - 2006

Funding

This work is sponsored by the Division of Materials Science, Office of Basic Energy Sciences, of the U.S. Department of Energy, and partially supported by National Science Foundation with Grant Number DMR-9731769. Research is also sponsored in part by the Assistant Secretary for Energy Efficiency and Renewable Energy, Office of Transportation Technologies, as part of the High Temperature Materials Laboratory User Program, Oak Ridge National Laboratory, managed by UT-Battelle, LLC, for the U.S. Dept. of Energy under contract DE-AC05-00OR22725. Any opinions, findings, and conclusions, or recommendations expressed here are those of authors and do not necessarily reflect the views of the sponsors.

Keywords

BaTiO
Powder-chemical preparation
Sol-gel processes
Titanates

Access to Document

10.1016/j.jeurceramsoc.2005.04.002

Cite this

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title = "Nanocrystalline BaTiO3 powder via a sol process ambient conditions",

abstract = "Nanocrystalline BaTiO3 particles have been prepared by ambient condition sol (ACS) process starting from soluble precursors of barium and titanium yielding a mixed oxide/hydroxide gel. The gel was peptized and crystallized in water under a refluxing condition. Higher initial pH and Ba/Ti ratio led to smaller crystallite sizes of BaTiO3 powders. Organic mineralizer, tetramethylammonium hydroxide (TMAH), can adsorb on the BaTiO3 nuclei and inhibited further growth of the particles. Adding a polymer during BaTiO3 synthesis led to a smaller particle size and increased redispersibility of the particles in water.",

keywords = "BaTiO, Powder-chemical preparation, Sol-gel processes, Titanates",

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AU - Wang, Xinyu

AU - Lee, Burtrand I.

AU - Hu, Michael

AU - Payzant, E. Andrew

AU - Blom, Douglas A.

PY - 2006

Y1 - 2006

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AB - Nanocrystalline BaTiO3 particles have been prepared by ambient condition sol (ACS) process starting from soluble precursors of barium and titanium yielding a mixed oxide/hydroxide gel. The gel was peptized and crystallized in water under a refluxing condition. Higher initial pH and Ba/Ti ratio led to smaller crystallite sizes of BaTiO3 powders. Organic mineralizer, tetramethylammonium hydroxide (TMAH), can adsorb on the BaTiO3 nuclei and inhibited further growth of the particles. Adding a polymer during BaTiO3 synthesis led to a smaller particle size and increased redispersibility of the particles in water.

KW - BaTiO

KW - Powder-chemical preparation

KW - Sol-gel processes

KW - Titanates

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