skip to main content
DOE PAGES title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Processing of crack-free high density polycrystalline LiTaO3 ceramics

Abstract

Our work achieved high density (99.9%) polycrystalline LiTaO3. The keys to the high density without cracking were the use of LiF-assisted densification to maintain fine grain size as well as the presence of secondary lithium aluminate phases as grain growth inhibitors. The average grain size of the hot pressed polycrystalline LiTaO3 is less than 5 μm, limiting residual stresses caused by the anisotropic thermal expansion. Dilatometry results clearly indicate liquid phase sintering via the added LiF sintering aid. Efficient liquid phase sintering allows densification during low temperature hot pressing. Electron microscopy confirmed the high-density microstructure. Furthermore, Rietveld analysis of neutron diffraction data revealed the presence of LiAlO2 and LiAl5O8 minority phases and negligible substitutional defect incorporation in LiTaO3.

Authors:
ORCiD logo; ; ; ; ; ;
Publication Date:
Research Org.:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA)
OSTI Identifier:
1335607
Report Number(s):
LA-UR-15-28219
Journal ID: ISSN 0957-4522
Grant/Contract Number:  
AC52-06NA25396; AC04-94AL85000
Resource Type:
Accepted Manuscript
Journal Name:
Journal of Materials Science Materials in Electronics
Additional Journal Information:
Journal Volume: 28; Journal Issue: 4; Journal ID: ISSN 0957-4522
Publisher:
Springer
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; LiTaO3, polycrystalline, Ceramic.

Citation Formats

Chen, Ching-Fong, Brennecka, Geoff L., King, Graham, Tegtmeier, Eric L., Holesinger, Terry, Ivy, Jacob, and Yang, Pin. Processing of crack-free high density polycrystalline LiTaO3 ceramics. United States: N. p., 2016. Web. doi:10.1007/s10854-016-5980-5.
Chen, Ching-Fong, Brennecka, Geoff L., King, Graham, Tegtmeier, Eric L., Holesinger, Terry, Ivy, Jacob, & Yang, Pin. Processing of crack-free high density polycrystalline LiTaO3 ceramics. United States. doi:10.1007/s10854-016-5980-5.
Chen, Ching-Fong, Brennecka, Geoff L., King, Graham, Tegtmeier, Eric L., Holesinger, Terry, Ivy, Jacob, and Yang, Pin. Fri . "Processing of crack-free high density polycrystalline LiTaO3 ceramics". United States. doi:10.1007/s10854-016-5980-5. https://www.osti.gov/servlets/purl/1335607.
@article{osti_1335607,
title = {Processing of crack-free high density polycrystalline LiTaO3 ceramics},
author = {Chen, Ching-Fong and Brennecka, Geoff L. and King, Graham and Tegtmeier, Eric L. and Holesinger, Terry and Ivy, Jacob and Yang, Pin},
abstractNote = {Our work achieved high density (99.9%) polycrystalline LiTaO3. The keys to the high density without cracking were the use of LiF-assisted densification to maintain fine grain size as well as the presence of secondary lithium aluminate phases as grain growth inhibitors. The average grain size of the hot pressed polycrystalline LiTaO3 is less than 5 μm, limiting residual stresses caused by the anisotropic thermal expansion. Dilatometry results clearly indicate liquid phase sintering via the added LiF sintering aid. Efficient liquid phase sintering allows densification during low temperature hot pressing. Electron microscopy confirmed the high-density microstructure. Furthermore, Rietveld analysis of neutron diffraction data revealed the presence of LiAlO2 and LiAl5O8 minority phases and negligible substitutional defect incorporation in LiTaO3.},
doi = {10.1007/s10854-016-5980-5},
journal = {Journal of Materials Science Materials in Electronics},
number = 4,
volume = 28,
place = {United States},
year = {2016},
month = {11}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record

Save / Share:

Works referenced in this record:

Lead-free piezoceramics
journal, October 2004

  • Saito, Yasuyoshi; Takao, Hisaaki; Tani, Toshihiko
  • Nature, Vol. 432, Issue 7013
  • DOI: 10.1038/nature03028

Sintering LiTaO3 and KTaO3 with the aid of manganese oxide
journal, April 1984

  • Shimada, Shiro; Kodaira, Kohei; Matsushita, Toru
  • Journal of Materials Science, Vol. 19, Issue 4
  • DOI: 10.1007/BF01120051

Temperature Dependence of the Elastic, Piezoelectric, and Dielectric Constants of Lithium Tantalate and Lithium Niobate
journal, May 1971

  • Smith, R. T.; Welsh, F. S.
  • Journal of Applied Physics, Vol. 42, Issue 6, p. 2219-2230
  • DOI: 10.1063/1.1660528

Correlations between sintering conditions and microstructure in ceramics of composition Li 0.80 Mg 0.20 (Ta 0.80 Ti 0.20 )O 3
journal, April 1988

  • Bonnet, J. P.; Ravez, J.; GiTae, Joo
  • Journal of Materials Research, Vol. 3, Issue 2
  • DOI: 10.1557/JMR.1988.0387

Progress in engineering high strain lead-free piezoelectric ceramics
journal, February 2010


Dielectric, Thermal, and Pyroelectric Properties of Ferroelectric LiTa O 3
journal, August 1968


Structural and dielectric properties in the system LiTaO3-WO3
journal, December 1985


Control of domain structures in lithium tantalate using interferometric optical patterning
journal, May 1999


Perspective on the Development of Lead-free Piezoceramics
journal, June 2009


Vapor-transport equilibrated near-stoichiometric lithium tantalate for frequency-conversion applications
journal, January 2004


Defect–Domain Wall Interactions in Trigonal Ferroelectrics
journal, August 2007


The electrical properties of ferroelectric LiTaO 3 and its solid solutions
journal, June 1987

  • Huanosta, A.; West, A. R.
  • Journal of Applied Physics, Vol. 61, Issue 12
  • DOI: 10.1063/1.338279

Tbit/inch2 ferroelectric data storage based on scanning nonlinear dielectric microscopy
journal, December 2002

  • Cho, Yasuo; Fujimoto, Kenjiro; Hiranaga, Yoshiomi
  • Applied Physics Letters, Vol. 81, Issue 23
  • DOI: 10.1063/1.1526916

Domain reversal in stoichiometric LiTaO[sub 3] prepared by vapor transport equilibration
journal, January 2004

  • Tian, L.; Gopalan, Venkatraman; Galambos, Ludwig
  • Applied Physics Letters, Vol. 85, Issue 19
  • DOI: 10.1063/1.1814436

Preparation and properties of LiTaO3-based solid solutions with cation vacancies
journal, December 1983


Sintering behavior and dielectric characteristics of LiTaO3 with the addition of (Mg2 + TiO2)
journal, May 1991


Powder synthesis and properties of LiTaO3 ceramics
journal, May 2014


Sensitive LiTaO 3 pyroelectric detector
journal, February 1973

  • Roundy, C. B.; Byer, R. L.
  • Journal of Applied Physics, Vol. 44, Issue 2
  • DOI: 10.1063/1.1662294

Some new non-stoichiometric ferroelectric phases appearing close to LiTaO3 in the ternary system Li2O-Ta2O5-(TiO2)2
journal, September 1981


Powder Synthesis and Hot-Pressing of a LiTaO3 Ceramic
journal, May 2012


    Works referencing / citing this record:

    The lithium-ion-conducting ceramic composite based on LiTi2(PO4)3 with addition of LiF
    journal, May 2018