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Balashov, V. V., Kopylov, Y. L., Kravchenko, V. B., Lopukhin, K. V., Shemet, V. V., & Zakharov, L. Y. (2018). Fabrication of YAG:RE (RE = Yb, Nd, Cr) Ceramics Using Divalent Sintering Aids. KnE Engineering, 3(6), 106–112. https://doi.org/10.18502/keg.v3i6.2981

https://doi.org/10.18502/keg.v3i6.2981

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authors

  • V V Balashov
    No author data available.
  • Yu L Kopylov
    No author data available.
  • V B Kravchenko
    No author data available.
  • K V Lopukhin
    No author data available.
  • V V Shemet
    No author data available.
  • L Yu Zakharov
    No author data available.

Published Date

  • Oct 8, 2018

Fabrication of YAG:RE (RE = Yb, Nd, Cr) Ceramics Using Divalent Sintering Aids

KnE Engineering / Breakthrough directions of scientific research at MEPhI: Development prospects within the Strategic Academic Units / Pages 106–112

Abstract

High-quality YAG:RE (Yb, Nd, Cr) ceramics with CaO and MgO as sintering aids were manufactured by solid state reactive sintering method in vacuum. Influence of annealing temperature on optical properties was studied. This combination of sintering aids requires annealing temperatures at least 1300∘C to fully eliminate oxygen vacancies and at least 1400∘C to convert Cr3+ to Cr4+. It was found that annealing in oxidizing atmosphere creates strong changes in short wavelength transmittance.


 


 


Keywords: laser ceramics, Yttrium aluminium garnet, sintering aids

References
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[2] Stevenson, A. J. (2010). The effects of sintering aids on defects, densification, and single crystal conversion of transparent Nd:YAG ceramics. PhD Thesis.


[3] Yagi, H., Takaichi, K., Ueda, K.-I., et al. (2006). Optical Materials, vol. 29, pp. 392–396.


[4] Guo, W., Cao, Y., Huang, Q., et al. (2011). Fabrication and laser behaviors of Nd:YAG ceramic microchips. Journal of the European Ceramic Society, vol. 31, pp. 2241–2246.


[5] Yang, H., Qin, X., Zhang, J., et al. (2011). Fabrication of Nd:YAG transparent ceramics with both TEOS and MgO additives. Journal of Alloys and Compounds, vol. 509, pp. 5274–5279.


[6] Zhou, T., Zhang, L., Li, Z., et al. (2017). Toward vacuum sintering of YAG transparent ceramic using divalent dopant as sintering aids: Investigation of microstructural evolution and optical property. Ceramics International, vol. 43, pp. 3140–3146.


[7] Lu, Z., Lu, T., Wei, N., et al. (2015). Effect of air annealing on the color center in Yb:Y3Al5O12 transparent ceramics with MgO as sintering additive. Optical Materials, vol. 47, pp. 292–296.


[8] Lu, Z., Lu, T., Wei, N., et al. (2013). Novel phenomenon on valence unvariation of doping ion in Yb:YAG transparent ceramics using MgO additives. Journal of Wuhan University of Technology - Materials Science Edition, vol. 28, p. 320.