Investigation on Preparation of Al0.52Zr0.48O1.74 by Microwave Pyrolysis

ZTA composite powder was prepared by muffle furnace heating and microwave heating respectively. The effect of pyrolysis on the preparation of ZTA composite powder was investigated. Zirconium chloride (ZrOCl2•(8H2O)), aluminium sulfate and ammonia were used as raw materials. Heating temperatures were at 600°C, 700°C, 800°C, 900°C, 1000°C for 20 min respectively. XRD and SEM were carried out to characterize samples. Results showed that microwave heating completed the preparation of ZTA composite powder at an excellent lower temperature (600°C) with an optimum size (211 nm). It is mainly due to the rapid coupling between microwave and materials. The different of crystal phase of the samples by muffle furnace heating and microwave heating is mainly due to the selective response between microwave and ZTA composite materials. Microwave plasma is the main factor leading to grain refinement of ZTA ceramic powder.

[1]  M. Awaad,et al.  Strontium hexaaluminate/ZTA composites: Preparation and characterization , 2019, Materials Chemistry and Physics.

[2]  P. Ribot,et al.  Zirconia layers: Structure, residual stress and fracture strength , 2019, Engineering Fracture Mechanics.

[3]  B. Fan,et al.  Seeds-induced synthesis of SiC by microwave heating , 2019, Ceramics International.

[4]  Jacob J. Adams,et al.  Microwave dielectric properties of zirconia fabricated using NanoParticle Jetting™ , 2019, Additive Manufacturing.

[5]  S. Parveen,et al.  Microwave synthesis of nanoparticles and their antifungal activities. , 2019, Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy.

[6]  Rui Zhang,et al.  Influences of pre-forming on preparation of SiC by microwave heating , 2018, Ceramics International.

[7]  G. Elgemeie,et al.  Microwave synthesis of fluorescent and luminescent dyes (1990–2017) , 2018, Journal of Molecular Structure.

[8]  K. Chou,et al.  Improved hydrogen desorption properties of Li-N-H system by the combination of the catalytic effect of LiBH4 and microwave irradiation , 2018, Catalysis Today.

[9]  B. Fan,et al.  Effect of SiCp Addition on Microstructure and Mechanical Properties of ZTA Ceramics by Microwave Sintering , 2018, Solid State Phenomena.

[10]  Rodrigo Moreno,et al.  Microwave-assisted solution synthesis, microwave sintering and magnetic properties of cobalt ferrite , 2017 .

[11]  J. González-Hernández,et al.  Nanomechanical properties of zirconia- yttria and alumina zirconia- yttria biomedical ceramics, subjected to low temperature aging , 2017 .

[12]  B. Fan,et al.  Preparation of large size ZTA ceramics with eccentric circle shape by microwave sintering , 2016, Journal of Advanced Ceramics.

[13]  B. Fan,et al.  Preparation of m-ZrO2 compacts by microwave sintering , 2014 .

[14]  A. Mainjot,et al.  Residual stress profiles in veneering ceramic on Y-TZP, alumina and ZTA frameworks: measurement by hole-drilling. , 2014, Dental materials : official publication of the Academy of Dental Materials.

[15]  Yanshuo Li,et al.  Microwave synthesis of zeolite membranes : A review , 2008 .

[16]  John Wang,et al.  Zirconia-toughened alumina (ZTA) ceramics , 1989 .

[17]  B. Lawn,et al.  Evaluating dental zirconia. , 2019, Dental materials : official publication of the Academy of Dental Materials.