Articles
All articles | Recent articles
Surface Modification of Alumina Powder to Prevent Exfoliation of Samples Fabricated by Gelcasting
A. Wieclaw-Midor, P. Wiecinska, M. Szafran
Warsaw University of Technology, Faculty of Chemistry, 3 Noakowskiego Street, 00 – 664 Warsaw, Poland
received January 31, 2018, received in revised form April 4, 2018, accepted April 28, 2018
Vol. 9, No. 3, Pages 225-234 DOI: 10.4416/JCST2018-00008
Abstract
The aim of this work was to study the influence of the Al2O3 surface modification 2-hydroxyethyl acrylate (HEA) on the properties of green and sintered ceramic bodies. As a reference, non-modified Al2O3 was used in the research. The modified Al2O3 powder was characterized with TEM and thermal analysis coupled with mass spectrometry. The rheological behaviour of slurries containing modified and non-modified alumina powder was measured, as well as the properties of green bodies. The proposed surface modification enables the production of green ceramic samples with homogeneous microstructure, high mechanical strength and high density. Sintered materials presented high density and favourable values for Vickers hardness. The obtained results showed that the presence of HEA on the powder surface partially prevents the negative effect of oxygen inhibition during gelcasting of alumina. Oxygen inhibition is a well-known problem in gelcasting but has still not been fully overcome for samples formed in an air atmosphere.
Download Full Article (PDF)
Keywords
Gelcasting, surface modification, alumina, mechanical strength
References
1 Szudarska, A., Mizerski, T., Sakka, Y., Suzuki, T.S., Szafran, M.: Fabrication of textured alumina by magnetic alignment via gelcasting based on low-toxic system, J. Eur. Ceram. Soc., 34, 3841 – 3848, (2014).
2 Drdlik, D., Drdlikova, K., Hadraba, H., Maca, K.: Optical, mechanical and fractographic response of transparent alumina ceramics on erbium doping, J. Eur. Ceram. Soc., 37, 4265 – 4270, (2017).
3 Rincón, A., Chinelatto, A.S.A., Moreno, R.: Tape casting of alumina/zirconia suspension containing graphene oxide, J. Eur. Ceram. Soc., 34, 1819 – 1827, (2014).
4 López-López, E., Moreno, R., Baudin, C.: Fracture strength and fracture toughness of zirconium titanate-zirconia bulk composite materials, J. Eur. Ceram. Soc., 35, 277 – 283, (2015).
5 Hanzel, O., Sedlák, R., Sedláček, J., Bizovská, V., Bystrický, V., Girman, V., Kovalčiková, A., Dusza, J., Šajgolík, P.: Anisotropy of functional properties of SiC composites with GNPs, GO and in situ formed graphene, J. Eur. Ceram. Soc., 37, 3731 – 3739, (2017).
6 Al Nasiri, N., Patra, N., Ni, N., Jayaseelen, D.D., Lee, W.E.: Oxidation behaviour of SiC/SiC ceramic matrix composites in air, J. Eur. Ceram. Soc., 36, 3293 – 3302, (2016).
7 Tubío, C.R., Guitián, F., Gil, A.: Fabrication of ZnO periodic structures by 3D printing, J. Eur. Ceram. Soc., 36, 3409 – 3415, (2016)
8 Hamdelou, S., Guergouri, K.: Microstructure and electrical properties of Co-doped ZnO varistors, J. Ceram. Sci. Technol., 7, 357 – 364, (2016)
9 Wan, T., Yao, D., Yin, J., Xia, Y., Zuo, K., Liang, H., Zeng, Y.: A novel method for preparing Si3N4 ceramics with unidirectional oriented pores from silicon aqueous slurries, J. Eur. Ceram. Soc., 37, 3285 – 3291, (2017).
10 Rueschhoff, L.M., Trice, R.W., Youngblood, J.P.: Near-net shaping of silicon-nitride via aqueous room temperature injection molding and pressureless sintering, Ceram. Int., 43, 10791 – 10798, (2017).
11 Santacruz, I., Nieto, M.I., Binner, J., Moreno, R.: Gel casting of aqueous suspensions of BaTiO3 nanopowders, Ceram. Int., 35, 321 – 326, (2009).
12 Trunec, M., Pauchly, V.: Colloidal processing of low-concentrated zirconia nano-suspension using osmotic consolidation, Ceram. Int., 42, 11838 – 11843, (2016).
13 Potoczek, M.: Gelcasting of alumina foams using agarose solutions, Ceram. Int., 34, 661 – 667, (2008).
14 Szafran, M., Wiecinska, P., Szudarska, A., Mizerski, T.: New multifunctional compounds in gelcasting process – introduction to their synthesis and application, J. Aust. Ceram. Soc., 49, 1 – 6, (2013).
15 Fan, K., Ruiz-Herrias, J., Pastor, J.Y., Gurauskis, J., Baudin, C.: Residual stress and diffraction line-broadening analysis of Al2O3/Y-TZP ceramic composites by neutron diffraction measurements, Int. J. Refract. Metals. Hard. Mater., 64, 122 – 134, (2017).
16 Luo, J., Eitel, R.: Aqueous tape casting of Al2O3 for multilayer co-fired ceramic based microfluidic chips with translucent windows, Ceram. Int., 44, 3488 – 3491, (2018).
17 Chen, A-N., Wu, J-M., Liu, Y-X., Liu, R-Z., Cheng, L-J., Huo, W-L., Shi, Y-S., Li, C-H.: Fabrication of porous alumina ceramics by direct coagulation casting combined with 3D printing, Ceram. Int., 44, 4845 – 4852, (2018).
18 Gauckler, L., Graule, T., Baader, F.: Ceramic forming using enzyme catalyzed reactions, Mater. Chem. Phys., 61, 78 – 102, (1999).
19 Rowthu, S., Saeidi, F., Wasmer, K., Hoffmann, P., Kuebler, J.: Flexural strength evaluations and fractography analyses of slip cast mesoporous submicron alumina, Ceram. Int., 44, 5193 – 5201, (2018).
20 Pulgarin, H.L.C., Garrido, L.B., Albano, M.P.: Processing of different alumina-zirconia composites by slip casting, Ceram. Int., 39, 6657 – 6667, (2013).
21 Feng, Z., Qi, J., Han, Y., Lu, T.: Deformation restraint of tape-casted transparent alumina ceramic wafers from optimized lamination, Ceram. Int., 44, 1059 – 1065, (2018).
22 Zhang, Y., Xu, J., Qu, Y., Xi, X., Yang, J.: Gelcasting of alumina suspension using gellan gum as gelling agent, Ceram. Int., 40, 5715 – 5721, (2014).
23 Tallón, C., Yates, M., Moreno, R., Nieto, M. I.: Porosity of freeze-dried γ-Al2O3 powders, Ceram. Int., 33, 1165 – 1169, (2007).
24 Ligoda-Chmiel, J., Śliwa, R.E., Potoczek, M.: Flammability and acoustic absorption of alumina foam tri-functional epoxy resin composites manufactured by the infiltration process, Compos. Part B., 112, 196 – 102, (2017).
25 Montero, M., Molina, T., Szafran, M., Moreno, R., Nieto, M.I.: Alumina porous nanomaterials obtained by colloidal processing using D-fructose as dispersant and porosity promoter, Ceram. Int., 38, 2779 – 2784, (2012).
26 Falkowski, P., Bednarek, P., Danelska, A., Mizerski, T., Szafran, M.: Application of monosaccharides derivatives in colloidal processing of aluminum oxide, J. Eur. Ceram. Soc., 30, 2805 – 2811, (2010).
27 Wiecinska, P., Graule, T., Szafran, M.: L – ascorbic acid as a new activator in fabrication of ceramics by techniques using in situ polymerization, J. Eur. Ceram. Soc., 34, 1581 – 1589 (2014).
28 Santacruz, I., Nieto, M.I., Moreno, R.: Alumina bodies with near-to-theoretical density by aqueous gelcasting using concentrated agarose solutions, Ceram. Int., 31, 439 – 445, (2005).
29 Gilissen, R., Erauw, J.P., Smolders, A., Vanswijgenhoven, E., Luyten, J.: Gelcasting, a near net shape technique, Mater. Des., 21, 251 – 257, (2000).
30 Studer, K., Decker, C., Beck, E., Schwalm, R.: Overcoming oxygen inhibition in UV-curing of acrylate coatings by carbon dioxide inserting, Part I, Prog. Org. Coat., 48, 92 – 100, (2003).
31 Ha, J.: Effect of atmosphere type on gelcasting behavior of Al2O3 and evaluation of green strength, Ceram. Int., 26, 251 – 254, (2000).
32 Pietrzak, E., Wiecińska, P., Szafran, M.: 2-carboxyethyl acrylate as a new monomer preventing negative effect of oxygen inhibition in gelcasting of alumina, Ceram. Int., 42, 13682 – 13688, (2016).
33 Zhang, S., Sha, N., Zhao, Z.: Surface modification of α-Al2O3 with dicarboxylic acids for the preparation of curable ceramic suspension, J. Eur. Ceram. Soc., 37, 1607 – 1616, (2017).
34 Hu, F., Liu, W., Xie, Z.: Surface modification of alumina powder particles through stearic acid for the fabrication of translucent alumina ceramics by injection molding, Ceram. Int., 42, 16274 – 13280, (2016).
35 Auerkari, P.: Mechanical and physical properties of engineering alumina ceramics, VTT Manufacturing Technology, (1996)
36 Casellas, D., Nagl, M.M., Llanes, L., Anglada, M.: Fracture toughness of alumina and ZTA ceramics: Microstructural coarsening effects, J. Mater. Process., 143 – 144, 148 – 152, (2003).
37 Millán, A.J., Nieto, M.I., Moreno, R., Baudin, C.: Thermogelling polysaccharides for aqueous gelcasting – Part III: mechanical and microstructural characterization of green alumina bodies, J. Eur. Ceram. Soc., 22, 2223 – 2230, (2002).
Copyright
Göller Verlag GmbH