Synthesis and morphology of Ba(Zr0.20Ti0.80)O3 powders obtained by sol–gel method

Xiaoyong Chen; Wei Cai; Chunlin Fu; Huaqiang Chen; Qiang Zhang

doi:10.1007/s10971-010-2335-1

journal article·2011-02

Synthesis and morphology of Ba(Zr0.20Ti0.80)O3 powders obtained by sol–gel method

Xiaoyong Chen, Wei Cai, Chunlin Fu, Huaqiang Chen, Qiang Zhang

Journal of Sol-Gel Science and Technology· Volume 57· Issue 2

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Source abstract

Abstract

Barium zirconate titanate, Ba(Zr0.20Ti0.80)O3 (BZT) powders were prepared by sol–gel method. These powders were characterized by thermogravimetric and differential thermogravimetric analyses (TG-DTA), X-ray diffraction (XRD) and microcopy electron transmission (TEM). The decomposition of the precursors was monitored by TG-DTA. XRD patterns reveal that BZT powders heat treated at 800 °C present single phase with perovskite-type cubic structure. TEM micrographs were employed to estimate the average particle size of the BZT powders (≈ 20 nm). The results indicate that the particle size of the BZT powders increases with the increasing of the holding time and aging temperature. The low aging temperature can reduce the agglomeration of the nanopowders. Three polyalcohols were employed as surfactants in sol–gel method: butanol (BTOL), polyethylene glycol (PEG) and polyvinyl alcohol (PVA). It is noted that PEG has a better effect on reducing agglomeration of BZT powders than that of the BTOL and PVA.

Source: openaire · Quality: candidate unverified · Source record ↗

Research context

Nanomaterials Electronic materials

OpenAlex topics: Ferroelectric and Piezoelectric Materials · Microwave Dielectric Ceramics Synthesis · Advanced ceramic materials synthesis

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

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