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Journal of Materials Science

, Volume 54, Issue 6, pp 4518–4522 | Cite as

Mechanical strength of cold-sintered zinc oxide under biaxial bending

  • Sarah LowumEmail author
  • Richard Floyd
  • Raul Bermejo
  • Jon-Paul Maria
Ceramics
  • 675 Downloads

Abstract

Zinc oxide is densified to 97% by the cold sintering process using an aqueous zinc acetate solution as the secondary transport phase. The mechanical response of the cold-sintered zinc oxide ceramics is investigated through the ball-on-three-balls biaxial bending technique. The analysis demonstrates that ZnO cold-sintered samples follow a Weibull distribution with a characteristic strength (σ0 ~ 65 MPa) and Weibull modulus (m ~ 8). Phase purity and residual secondary phases were analyzed via X-ray diffraction and Raman spectroscopy. This report provides an initial demonstration of the mechanical properties of cold-sintered parts in the as-pressed and unmodified state and serves for comparison with conventionally prepared ceramics.

Notes

Acknowledgements

The authors would like to thank members of the Pennsylvania State University for the use of their equipment including Alexander Wilson-Heid and Professor Allison Beese, the Huck Institutes of the Life Sciences’ Microscopy and Cytometry Facility, and the Materials Characterization Lab’s Raman Facility. This material is based upon work supported by the National Science Foundation, as part of the Center for Dielectrics and Piezoelectrics under Grant Nos. IIP-1361571 and 1361503. This material is based upon work supported by the National Science Foundation Graduate Research Fellowship Program under Grant No. DGE-1252376. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the author(s) and do not necessarily reflect the views of the National Science Foundation.

Compliance with ethical standards

Conflicts of interest

The authors declare that they have no conflict of interest.

References

  1. 1.
    Maria JP, Kang X, Floyd RD et al (2017) Cold sintering: current status and prospects. J Mater Res 32:3205–3218CrossRefGoogle Scholar
  2. 2.
    Gonzalez-Julian J, Neuhaus K, Bernemann M et al (2018) Unveiling the mechanisms of cold sintering of ZnO at 250 °C by varying applied stress and characterizing grain boundaries by Kelvin Probe Force Microscopy. Acta Mater 144:116–128CrossRefGoogle Scholar
  3. 3.
    Funahashi S, Guo J, Guo H et al (2017) Demonstration of the cold sintering process study for the densification and grain growth of ZnO ceramics. J Am Ceram Soc 100:546–553CrossRefGoogle Scholar
  4. 4.
    Kang X, Floyd R, Lowum S et al (2018) Mechanism studies of hydrothermal cold sintering of zinc oxide at near room temperature. Manuscript submitted for publicationGoogle Scholar
  5. 5.
    Börger A, Supancic P, Danzer R (2002) The ball on three balls test for strength testing of brittle discs: stress distribution in the disc. J Eur Ceram Soc 22:1425–1436CrossRefGoogle Scholar
  6. 6.
    Yoshimura HN, Molisani AL, Narita NE et al (2006) Mechanical properties and microstructure of zinc oxide varistor ceramics. Mater Sci Forum 530–531:408–413CrossRefGoogle Scholar
  7. 7.
    European Committee for Standardization (1996) EN 843-5: advanced technical ceramics—monolithic ceramics—mechanical tests at room temperature—part 5: statistical analysis. European Committee for Standardization, BrusselsGoogle Scholar
  8. 8.
    Balzer B, Hagemeister M, Kocher P, Gauckler LJ (2004) Mechanical strength and microstructure of zinc oxide varistor ceramics. J Am Ceram Soc 87:1932–1938CrossRefGoogle Scholar
  9. 9.
    Lu C, Danzer R, Fischer FD (2004) Scaling of fracture strength in ZnO: effects of pore/grain-size interaction and porosity. J Eur Ceram Soc 24:3643–3651CrossRefGoogle Scholar
  10. 10.
    Cuscó R, Alarcón-Lladó E, Ibáñez J et al (2007) Temperature dependence of Raman scattering in ZnO. Phys Rev B 75:165202-1–165202-11CrossRefGoogle Scholar
  11. 11.
    Ben Yahia S, Znaidi L, Kanaev A, Petitet JP (2008) Raman study of oriented ZnO thin films deposited by sol-gel method. Spectrochim Acta Part A Mol Biomol Spectrosc 71:1234–1238CrossRefGoogle Scholar
  12. 12.
    Yang MM, Crerar DA, Irish DE (1989) A Raman spectroscopic study of lead and zinc acetate complexes in hydrothermal solutions. Geochim Cosmochim Acta 53:319–326CrossRefGoogle Scholar
  13. 13.
    Johnson MK, Powell DB, Cannon RD (1981) Vibrational spectra of carboxylato complexes-I. Infrared and Raman spectra of beryllium(II) acetate and formate and of zinc(II) acetate and zinc(II) acetate dihydrate. Spectrochim Acta 37A:899–904CrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2018

Authors and Affiliations

  1. 1.Department of Materials Science and EngineeringThe Pennsylvania State UniversityUniversity ParkUSA
  2. 2.Department of Materials Science and EngineeringNorth Carolina State UniversityRaleighUSA
  3. 3.Institut fuer Struktur- und FunktionskeramikMontanuniversitaet LeobenLeobenAustria

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