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Improving Optical Transmission of Spark-Plasma-Sintered YAG Ceramics: Effect of Powder Conditioning and Post-Treatments
R. Moronta Pérez1, L. Boilet1, P. Aubry1, P. Palmero2, L. Henrard3, O. Deparis3, V. Lardot1, F. Cambier1
1 Belgian Ceramic Research Centre, 4 avenue gouverneur Cornez, 7000 Mons (Belgium)
2 Department of Applied Science and Technology and INSTM Research Unit PoliTO, LINCE Laboratory, Politecnico di Torino, 24 corso Duca degli Abruzzi, 10129 Torino (Italy)
3 University of Namur, Physics Department, 61 rue de Bruxelles, 5000 Namur (Belgium)
received July 7, 2017, received in revised form September 11, 2017, accepted October 13, 2017
Vol. 9, No. 1, Pages 19-28 DOI: 10.4416/JCST2017-00052
Abstract
Three YAG powders were densified by means of spark plasma sintering (SPS), with the aim of developing optically transparent ceramics. The influence of the physico-chemical characteristics of the powders (purity, agglomeration state and stoichiometry) on the sintering and the optical transmission was investigated. Depending on the powder type, different pre-treatments and/or post-treatments were necessary to increase both homogeneity and optical transmission of the densified parts. In the case of agglomerated powders, dispersion by ultrasonication was efficient and led to better homogeneity and higher optical transmission. Post-treatments such as annealing and post-hipping in air were helpful to reduce oxygen vacancies and residual porosities and improved the optical transmission of the ceramics. The highest values of real in-line transmission (RIT) were obtained under SPS conditions of 50 MPa at 1500 °C and after annealing in air at 1150 °C for 12 h. The achieved RIT value was equal to 66 % at the wavelength of 600 nm.
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Keywords
YAG, SPS, transparent ceramics, optical properties
References
1 Krell, A., Hutzler, T., Klimke, J., Potthoff, A.: Fine-grained transparent spinel windows by the processing of different nanopowders, J. Am. Ceram. Soc., 93, 2656 – 2666, (2010).
2 Morita, K., Kim, B.-N., Yoshida, H., Hiraga, K.: Spark plasma sintering condition optimisation for producing transparent MgAlO4 spinel polycristal, J. Am. Ceram. Soc., 92, 1208 – 1216, (2009).
3 Sokol, M., Kalabukhov, S., Dariel, M.P., Frage, N.: High-pressure spark plasma sintering (SPS) of transparent polycrystalline magnesium aluminate spinel (PMAS), J. Eur. Ceram. Soc., 34, 4305 – 4310, (2014).
4 Chaim, R., Kalina, M., Shen, J.Z.: Transparent yttrium aluminum garnet (YAG) ceramics by spark plasma sintering, J. Eur. Ceram. Soc., 27, 3331 – 3337, (2007).
5 Ba, X., Li, J., Pan, Y. et al.: Comparison of aqueous- and non-aqueous-based tape casting for preparing YAG transparent ceramics, J. Alloy. Compd., 577, 228 – 231, (2013).
6 Goldstein, A., Krell, A.: Transparent ceramics at 50: Progress made and further prospects, J. Am. Ceram. Soc., 99, 3173 – 3197, (2016).
7 Kim, B.-N., Hiraga, K., Morita, K. et al.: Effects of heating rate on microstructure and transparency of spark-plasma-sintered alumina, J. Eur. Ceram. Soc., 29, 323 – 327, (2009).
8 Stuer, M., Zhao, Z., Aschauer, U., Bowen, P.: Transparent polycrystalline alumina using spark plasma sintering: Effect of mg, Y and La doping, J. Eur. Ceram. Soc., 30, 1335 – 1343, (2010).
9 Wang, S.F., Zhang, Y., Luo, D.W. et al.: Transparent ceramics: Processing, materials and applications, Prog. Solid State Ch., 41, 20 – 54, (2013).
10 Liu, J., Shen, Z., Yao, W. et al.: Visible and infrared transparency in lead free bulk BaTiO3 and SrTiO3 nanoceramics, Nanotechnology, 21, (2010).
11 Krell, A., Klimke, J., Hutzler, T.: Transparent compact ceramics: Inherent physical issues, Opt. Mater., 31, 1144 – 1150, (2009).
12 Liu, J., Yao, W., Kear, B., Ak, M.: Microstructure and IR transmittance of yttria-magnesia (50:50 vol%) nano-composites consolidated from agglomerated and ultrasonic horn treated nano-powders, Mater. Sci. Eng. B, 171, 149 – 154, (2010).
13 Suarez, M., Menendez, J.L., Torrecillas, R.: Transparent yttrium aluminium garnet obtained by spark plasma sintering of lyophilized gels, J. Nanomater., (2009).
14 Bernard-Granger, G., Benameur, N., Guizard, C., Nygren, M.: Influence of graphite contamination on the optical properties of transparent spinel obtained by spark plasma sintering, Scripta Mater., 60, 164 – 167, (2009).
15 Kodera, Y., Hardin, C.L., Garay, J.E.: Transmitting, emitting and controlling light: Processing of transparent ceramics using current-activated pressure-assisted densification, Scripta Mater., 69, 149 – 154, (2013).
16 Palmero, P., Bonelli, G., Fantozzi, G. et al.: Surface and mechanical properties of transparent polycristalline YAG fabricated by SPS, Mater. Res. Bull., 48, 2589 – 2597, (2013).
17 Boulesteix, R., Maitre, A., Baumard, J.F., Rabinovitch, Y., Reynaud, F.: Light scattering by pores in transparent Nd:YAG ceramics for lasers: Correlations between microstructure and optical properties, Opt. Express, 18, 14992 – 15002, (2010).
18 Spina, G. et al.: Transparent YAG obtained by spark plasma sintering of coprecipitated powder. influence of dispersion route and sintering parameters on optical and microstructural characteristics, J. Eur. Ceram. Soc., 32, 2957 – 2964, (2012).
19 Frage, N., Kalabukhov, S., Sverdlov, N. et al.: Effect of the spark plasma sintering (SPS) parameters and LiF doping on the mechanical properties and the transparency of polycrystalline Nd-YAG, Ceram. Int., 38, 5513 – 5519, (2012).
20 Liu, W. et al.: Synthesis of Nd:YAG powders leading to transparent ceramics: The effect of MgO dopant, J. Eur. Ceram. Soc., 31, 653 – 657, (2011).
21 Grasso, S., Hu, C., Maizza, G., Kim, B.-N., Sakka, Y.: Effects of pressure application method on transparency of spark plasma sintered alumina, J. Am. Ceram. Soc., 94, 1405 – 1409, (2011).
22 An, L., Ito, A., Goto, T.: Two-step pressure sintering of transparent lutetium oxide by spark plasma sintering, J. Eur. Ceram. Soc., 31, 1597 – 1602, (2011).
23 Powell, R.C., Physics of Solid-State Laser Materials. AIP Press, Springer-Verlag New York, Inc. New York, 1998
24 Esposito, L., Piancastelli, A., Bykov, Y. et al.: Microwave sintering of Yb:YAG transparent laser ceramics, Opt. Mater., 35, 261 – 265, (2013).
25 Pradhan, A.K., Zhang, K., Loutts, G.B.: Synthesis of neodynium-doped yttrium aluminum garnet (YAG) nanocrystalline powders leading to transparent ceramics, Mater. Res. Bull., 39, 1291 – 1298, (2004).
26 Guesic, J.E., Marcos, H.M., Van Uitert, L.G.: Laser oscillations in Nd-doped yttrium aluminum, yttrium gallium and gadolinium garnets, Appl. Phys. Lett., 4, 182, (1964).
27 Palmero, P., Esnout, C., Montanaro, L., Fantozzi, G.: Influence of the co-precipitation temperature on phase evolution in yttrium-aluminium oxide materials, J. Eur. Ceram. Soc., 25, 1565 – 1573, (2005).
28 Apetz, R., Bruggen, M.P.: Transparent alumina. A light scattering model, J. Am. Ceram. Soc., 86, 480 – 486, (2003).
29 Lee, S.-H., Kochawattana, S., Messing, G.L.: Solid-state reactive sintering of transparent polycrystalline Nd:YAG ceramics, J. Am. Ceram. Soc. 89, 1945 – 1950, (2006).
30 Frage, N., Kalabuknov, S., Sverdlov, N., Ezersky, V., Dariel, M.P.: Densification of transparent yttrium aluminum garnet (YAG) by SPS processing, J. Eur. Ceram. Soc., 30, 3331 – 3337, (2010).
31 Lu, Z. et al.: Effect of air annealing on the color center in Yb:Y3Al5O12 transparent ceramics with MgO as sintering additive, Opt. Mater., 47, 292 – 296, (2015).
32 Rubat du Merac, M., Kleebe, H.-J., Müller, M., Reimanis, I.: Fifty years of research and development coming to fruition; unraveling the complex interactions during processing of transparent MgAl2O4, J. Am. Ceram. Soc., 96, 3341 – 3365, (2013).
33 Pabst, W., Hostasa, J., Esposito, L.: Porosity and pore size dependence of the real in-line transmission of YAG and alumina ceramics, J. Eur. Ceram. Soc., 34, 2745 – 2756, (2014).
34 Aman, Y., Garnier, V., Djurado, E.: Influence of green state processes on the sintering behaviour and the subsequent optical properties of spark plasma sintered alumina, J. Eur. Ceram. Soc. 29, 3363 – 3370, (2009).
35 Marlot, C.: YAG transparent ceramics processing: Co-precipitation synthesis and SPS, in French, Ph.D. Thesis, Université de Bourgogne, Dijon, 2013.
36 Gong, H. et al.: Fabrication and laser performance of highly transparent Nd:YAG ceramics from well-dispersed Nd:Y2O3 nanopowders by freeze-drying, J. Nanopart. Res., 13, 3853 – 3860, (2011).
37 Meir, S., Kalabukhov, S., Froumin, N., Dariel, M.P., Frage, N.: Synthesis and densification of transparent magnesium aluminate spinel by SPS processing, J. Am. Ceram. Soc., 92, 358 – 364, (2009).
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