Templated grain growth of textured Sr2Nb2O7

Bhaskar Brahmaroutu, Gary Lynn Messing, Susan E. Trolier-McKinstry, Ulagaraj Selvaraj

Research output: Chapter in Book/Report/Conference proceedingConference contribution

40 Citations (Scopus)

Abstract

Sr2Nb2O7, a candidate material for high temperature piezoelectric applications, is difficult to pole as a polycrystalline ceramic. To circumvent this problem, a process based on templated grain growth (TGG) for producing textured samples was developed. To accomplish TGG, fine matrix powder, single crystal template particles, and a fabrication technique for orienting template particles in the matrix are required. Single crystal template particles were synthesized by a molten salt technique. The matrix powder was synthesized by solid state reaction of SrCO3 and Nb2O5 in a 2:1 molar ratio. The template particles were dispersed in the matrix powder and tape cast. The initial orientation was induced by the shear field during tape casting and subsequent lamination. Sintering leads to the growth of oriented template particles in the dense matrix, thereby increasing the degree of grain-orientation. The effect of processing parameters and starting powders on the microstructure and texture are presented in this paper.

Original languageEnglish (US)
Title of host publicationIEEE International Symposium on Applications of Ferroelectrics
EditorsB.M. Kulwicki, A. Amin, A. Safari
PublisherIEEE
Pages883-886
Number of pages4
Volume2
StatePublished - 1996
EventProceedings of the 1996 10th IEEE International Symposium on Applications of Ferroelectrics, ISAF. Part 1 (of 2) - East Brunswick, NJ, USA
Duration: Aug 18 1996Aug 21 1996

Other

OtherProceedings of the 1996 10th IEEE International Symposium on Applications of Ferroelectrics, ISAF. Part 1 (of 2)
CityEast Brunswick, NJ, USA
Period8/18/968/21/96

Fingerprint

Grain growth
Powders
Tapes
Single crystals
Solid state reactions
Molten materials
Poles
Casting
Sintering
Salts
Textures
Fabrication
Microstructure
Processing
Temperature

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering

Cite this

Brahmaroutu, B., Messing, G. L., Trolier-McKinstry, S. E., & Selvaraj, U. (1996). Templated grain growth of textured Sr2Nb2O7 In B. M. Kulwicki, A. Amin, & A. Safari (Eds.), IEEE International Symposium on Applications of Ferroelectrics (Vol. 2, pp. 883-886). IEEE.
Brahmaroutu, Bhaskar ; Messing, Gary Lynn ; Trolier-McKinstry, Susan E. ; Selvaraj, Ulagaraj. / Templated grain growth of textured Sr2Nb2O7 IEEE International Symposium on Applications of Ferroelectrics. editor / B.M. Kulwicki ; A. Amin ; A. Safari. Vol. 2 IEEE, 1996. pp. 883-886
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Brahmaroutu, B, Messing, GL, Trolier-McKinstry, SE & Selvaraj, U 1996, Templated grain growth of textured Sr2Nb2O7 in BM Kulwicki, A Amin & A Safari (eds), IEEE International Symposium on Applications of Ferroelectrics. vol. 2, IEEE, pp. 883-886, Proceedings of the 1996 10th IEEE International Symposium on Applications of Ferroelectrics, ISAF. Part 1 (of 2), East Brunswick, NJ, USA, 8/18/96.

Templated grain growth of textured Sr2Nb2O7 . / Brahmaroutu, Bhaskar; Messing, Gary Lynn; Trolier-McKinstry, Susan E.; Selvaraj, Ulagaraj.

IEEE International Symposium on Applications of Ferroelectrics. ed. / B.M. Kulwicki; A. Amin; A. Safari. Vol. 2 IEEE, 1996. p. 883-886.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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N2 - Sr2Nb2O7, a candidate material for high temperature piezoelectric applications, is difficult to pole as a polycrystalline ceramic. To circumvent this problem, a process based on templated grain growth (TGG) for producing textured samples was developed. To accomplish TGG, fine matrix powder, single crystal template particles, and a fabrication technique for orienting template particles in the matrix are required. Single crystal template particles were synthesized by a molten salt technique. The matrix powder was synthesized by solid state reaction of SrCO3 and Nb2O5 in a 2:1 molar ratio. The template particles were dispersed in the matrix powder and tape cast. The initial orientation was induced by the shear field during tape casting and subsequent lamination. Sintering leads to the growth of oriented template particles in the dense matrix, thereby increasing the degree of grain-orientation. The effect of processing parameters and starting powders on the microstructure and texture are presented in this paper.

AB - Sr2Nb2O7, a candidate material for high temperature piezoelectric applications, is difficult to pole as a polycrystalline ceramic. To circumvent this problem, a process based on templated grain growth (TGG) for producing textured samples was developed. To accomplish TGG, fine matrix powder, single crystal template particles, and a fabrication technique for orienting template particles in the matrix are required. Single crystal template particles were synthesized by a molten salt technique. The matrix powder was synthesized by solid state reaction of SrCO3 and Nb2O5 in a 2:1 molar ratio. The template particles were dispersed in the matrix powder and tape cast. The initial orientation was induced by the shear field during tape casting and subsequent lamination. Sintering leads to the growth of oriented template particles in the dense matrix, thereby increasing the degree of grain-orientation. The effect of processing parameters and starting powders on the microstructure and texture are presented in this paper.

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Brahmaroutu B, Messing GL, Trolier-McKinstry SE, Selvaraj U. Templated grain growth of textured Sr2Nb2O7 In Kulwicki BM, Amin A, Safari A, editors, IEEE International Symposium on Applications of Ferroelectrics. Vol. 2. IEEE. 1996. p. 883-886