Effect of particle size distribution on microstructure and piezoelectric properties of MnO2-added 0.95(K0.5Na0.5) NbO3-0.5BaTiO3 ceramics

Cheol Woo Ahn, Sahn Nahm, Myong Jae Yoo, Hyeung Gyu Lee, Shashank Priya

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

The effect of particle size distribution on the microstructure and piezoelectric properties of MnO2-added 0.95(K0.5Na 0.5)NbO3-0.5BaTiO3 (KNN-BT) ceramics has been explored. It is known that the packing density of a green body is dependent on the ration of small to large particles present in the mixture. It was established that the rate of reaction is inversely proportional to the square of particle size. It was also suggested that commercial alkali powders require significant reduction in particle size before being used to form the green body to avoid agglomeration. It was observed that for KNN-BT ceramics, a higher density can be obtained by using higher content of smaller size particles in the green body. It was also proposed that enhanced piezoelectric properties in these lead-free ceramics can be achieved by using 100% particles of size less than 0.3 μm in the green body.

Original languageEnglish
Pages (from-to)6016-6019
Number of pages4
JournalJournal of Materials Science
Volume43
Issue number17
DOIs
Publication statusPublished - 2008 Sep 1

Fingerprint

particle size distribution
Particle size analysis
Particle size
ceramics
microstructure
Microstructure
Alkalies
Powders
Agglomeration
Lead
rations
packing density
agglomeration
alkalies

ASJC Scopus subject areas

  • Materials Science(all)
  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this

Effect of particle size distribution on microstructure and piezoelectric properties of MnO2-added 0.95(K0.5Na0.5) NbO3-0.5BaTiO3 ceramics. / Ahn, Cheol Woo; Nahm, Sahn; Yoo, Myong Jae; Lee, Hyeung Gyu; Priya, Shashank.

In: Journal of Materials Science, Vol. 43, No. 17, 01.09.2008, p. 6016-6019.

Research output: Contribution to journalArticle

@article{5fab95fd91b744859f3bcd94dbfa3c54,
title = "Effect of particle size distribution on microstructure and piezoelectric properties of MnO2-added 0.95(K0.5Na0.5) NbO3-0.5BaTiO3 ceramics",
abstract = "The effect of particle size distribution on the microstructure and piezoelectric properties of MnO2-added 0.95(K0.5Na 0.5)NbO3-0.5BaTiO3 (KNN-BT) ceramics has been explored. It is known that the packing density of a green body is dependent on the ration of small to large particles present in the mixture. It was established that the rate of reaction is inversely proportional to the square of particle size. It was also suggested that commercial alkali powders require significant reduction in particle size before being used to form the green body to avoid agglomeration. It was observed that for KNN-BT ceramics, a higher density can be obtained by using higher content of smaller size particles in the green body. It was also proposed that enhanced piezoelectric properties in these lead-free ceramics can be achieved by using 100{\%} particles of size less than 0.3 μm in the green body.",
author = "Ahn, {Cheol Woo} and Sahn Nahm and Yoo, {Myong Jae} and Lee, {Hyeung Gyu} and Shashank Priya",
year = "2008",
month = "9",
day = "1",
doi = "10.1007/s10853-008-2910-9",
language = "English",
volume = "43",
pages = "6016--6019",
journal = "Journal of Materials Science",
issn = "0022-2461",
publisher = "Springer Netherlands",
number = "17",

}

TY - JOUR

T1 - Effect of particle size distribution on microstructure and piezoelectric properties of MnO2-added 0.95(K0.5Na0.5) NbO3-0.5BaTiO3 ceramics

AU - Ahn, Cheol Woo

AU - Nahm, Sahn

AU - Yoo, Myong Jae

AU - Lee, Hyeung Gyu

AU - Priya, Shashank

PY - 2008/9/1

Y1 - 2008/9/1

N2 - The effect of particle size distribution on the microstructure and piezoelectric properties of MnO2-added 0.95(K0.5Na 0.5)NbO3-0.5BaTiO3 (KNN-BT) ceramics has been explored. It is known that the packing density of a green body is dependent on the ration of small to large particles present in the mixture. It was established that the rate of reaction is inversely proportional to the square of particle size. It was also suggested that commercial alkali powders require significant reduction in particle size before being used to form the green body to avoid agglomeration. It was observed that for KNN-BT ceramics, a higher density can be obtained by using higher content of smaller size particles in the green body. It was also proposed that enhanced piezoelectric properties in these lead-free ceramics can be achieved by using 100% particles of size less than 0.3 μm in the green body.

AB - The effect of particle size distribution on the microstructure and piezoelectric properties of MnO2-added 0.95(K0.5Na 0.5)NbO3-0.5BaTiO3 (KNN-BT) ceramics has been explored. It is known that the packing density of a green body is dependent on the ration of small to large particles present in the mixture. It was established that the rate of reaction is inversely proportional to the square of particle size. It was also suggested that commercial alkali powders require significant reduction in particle size before being used to form the green body to avoid agglomeration. It was observed that for KNN-BT ceramics, a higher density can be obtained by using higher content of smaller size particles in the green body. It was also proposed that enhanced piezoelectric properties in these lead-free ceramics can be achieved by using 100% particles of size less than 0.3 μm in the green body.

UR - http://www.scopus.com/inward/record.url?scp=50849136209&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=50849136209&partnerID=8YFLogxK

U2 - 10.1007/s10853-008-2910-9

DO - 10.1007/s10853-008-2910-9

M3 - Article

AN - SCOPUS:50849136209

VL - 43

SP - 6016

EP - 6019

JO - Journal of Materials Science

JF - Journal of Materials Science

SN - 0022-2461

IS - 17

ER -