Abstract
Ultra-large zirconia toughened alumina (ZTA, mass ratio of Al2O3 and ZrO2 is 78:22) ceramics with eccentric circle shape were successfully sintered by microwave sintering with a multi-mode cavity at 2.45 GHz. The dimension of ZTA ceramics (green body) is 165 mm (outer diameter) × 25 mm (thickness). The optimized sintering temperature of microwave sintering is about 1500 °C for 30 min, and the total sintering time is about 4 h which is much shorter than that of conventional sintering. An auxiliary-heating insulation device was designed based on the principle of local caloric compensation to guarantee the intact sintered samples. With the increasing of sintering temperature, more and more microwave energy is absorbed within the entire sample, volumetric densification performs, and phases shift from m-ZrO2 phase to t-ZrO2 phase and cause Al2O3 grain growth.
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References
Exare C, Kiat J-M, Guiblin N, et al. Structural evolution of ZTA composites during synthesis and processing. J Eur Ceram Soc 2015, 35: 1273–1283.
Bartolomé JF, Smirnov A, Sommer F, et al. Sliding wear behavior of ZTA with different yttria stabilizer content. J Am Ceram Soc 2015, 98: 3981–3987.
Oghbaei M, Mirzaee O. Microwave versus conventional sintering: A review of fundamentals, advantages and applications. J Alloys Compd 2010, 494: 175–189.
Chatterjee A, Basak T, Ayappa KG. Analysis of microwave sintering of ceramics. AIChE J 1998, 44: 2302–2311.
Bykov YV, Rybakov KI, Semenov VE. High-temperature microwave processing of materials. J Phys D: Appl Phys 2001, 34: R55.
Clark DE, Sutton WH. Microwave processing of materials. Annu Rev Mater Sci 1996, 26: 299–331.
Rybakov KI, Olevsky EA, Krikun EV. Microwave sintering: Fundamentals and modeling. J Am Ceram Soc 2013, 96: 1003–1020.
Brosnan KH, Messing GL, Agrawal DK. Microwave sintering of alumina at 2.45 GHz. J Am Ceram Soc 2003, 86: 1307–1312.
Lu B, Wang Y, Sun XD, et al. Synthesis of Sc2O3 nanopowders and fabrication of transparent, two-step sintered Sc2O3 ceramics. Adv Appl Ceram 2012, 111: 389–392.
Thuault A, Savary E, Bazin J, et al. Microwave sintering of large size pieces with complex shape. J Mater Process Tech 2014, 214: 470–476.
Kapoor AS. Microwave sintering of solid oxide fuel cell materials. Available at http://www.lib.ncsu.edu/resolver/1840.16/1150.
Benavente R, Salvador MD, Penaranda-Foix FL, et al. Mechanical properties and microstructural evolution of alumina–zirconia nanocomposites by microwave sintering. Ceram Int 2014, 40: 11291–11297.
Baeraky TA. Microwave measurements of the dielectric properties of silicon carbide at high temperature. Egypt J Sol 2002, 25: 263–273.
Heuguet R, Marinel S, Thuault A, et al. Effects of the susceptor dielectric properties on the microwave sintering of alumina. J Am Ceram Soc 2013, 96: 3728–3736.
Calambás Pulgarin HL, Albano MP. Sintering, microstrusture and hardness of different alumina–zirconia composites. Ceram Int 2014, 40: 5289–5298.
Pian X, Fan B, Chen H, et al. Preparation of m-ZrO2 compacts by microwave sintering. Ceram Int 2014, 40: 10483–10488.
Acknowledgements
This work was sponsored by the National Natural Science Foundation of China (NSFC, No. 51172113).
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Chen, Y., Fan, B., Shao, G. et al. Preparation of large size ZTA ceramics with eccentric circle shape by microwave sintering. J Adv Ceram 5, 291–297 (2016). https://doi.org/10.1007/s40145-016-0202-4
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DOI: https://doi.org/10.1007/s40145-016-0202-4