Sintering properties and thermal depletion of boron in zirconia–zirconium diboride conductive ceramic

Chew, W.J. Kelvin; Amiriyan, M.; Yaghoubi, Alireza; Ramesh, S.; Purbolaksono, J.; Tolouei, R.; Teng, W.D.; Agrawal, Dinesh Kumar

doi:10.1016/j.ceramint.2014.05.045

Cited by 5 publications

(2 citation statements)

References 47 publications

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“…The absorption of the microwave energy within the material depends on several factors such as the incident microwave frequency, the dielectric constant of the material, the dielectric loss of the material, and the distribution of the electric field within the material [25,26]. Many researchers [27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48] have reported enhanced kinetic rates, different reaction pathways, and/or different reaction products in several processes and materials using MW processing of materials when compared to conventional processing at the same or even at lower temperatures.…”

Section: Introductionmentioning

confidence: 99%

Microwave Crystallization of Lithium Aluminum Germanium Phosphate Solid-State Electrolyte

et al. 2016

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Lithium aluminum germanium phosphate (LAGP) glass-ceramics are considered as promising solid-state electrolytes for Li-ion batteries. LAGP glass was prepared via the regular conventional melt-quenching method. Thermal, chemical analyses and X-ray diffraction (XRD) were performed to characterize the prepared glass. The crystallization of the prepared LAGP glass was done using conventional heating and high frequency microwave (MW) processing. Thirty GHz microwave (MW) processing setup were used to convert the prepared LAGP glass into glass-ceramics and compared with the conventionally crystallized LAGP glass-ceramics that were heat-treated in an electric conventional furnace. The ionic conductivities of the LAGP samples obtained from the two different routes were measured using impedance spectroscopy. These samples were also characterized using XRD and scanning electron microscopy (SEM). Microwave processing was successfully used to crystallize LAGP glass into glass-ceramic without the aid of susceptors. The MW treated sample showed higher total, grains and grain boundary ionic conductivities values, lower activation energy and relatively larger-grained microstructure with less porosity compared to the corresponding conventionally treated sample at the same optimized heat-treatment conditions. The enhanced total, grains and grain boundary ionic conductivities values along with the reduced activation energy that were observed in the MW treated sample was considered as an experimental evidence for the existence of the microwave effect in LAGP crystallization process. MW processing is a promising candidate technology for the production of solid-state electrolytes for Li-ion battery.

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Section: Introductionmentioning

confidence: 99%

Microwave Crystallization of Lithium Aluminum Germanium Phosphate Solid-State Electrolyte

et al. 2016

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“…Incorporation of electroconductive phase to a ceramic matrix can produce low electrical resistance ceramics. In the case of zirconia, many electrically conductive reinforcements were investigated such as TiC, TiB 2, WC, TiCN, ZrB 2, and TiN . Martinelli proved that partially stabilized zirconia ceramic matrix composites containing metallic inclusions above 25 vol.…”

Section: Introductionmentioning

confidence: 99%

Processing of High‐Density Magnesia Spinel Electro‐Conducting Ceramic Composite and its Oxidation at 1400°C

Zaki

Mostafa

Ahmed

et al. 2016

Int J Applied Ceramic Tech

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Dense conductive ceramic composites of MgAl2O4 and MoSi2 were processed using combustion synthesis under‐load methodology. The starting reactants were blends of MoO3, SiO2, MgO, and Al powders. The study revealed that to obtain dense composite with homogeneous microstructure, 30 wt. % of MoSi2, 18.5 μm Al average particle size, and 175 MPa load are required. The produced dense composite was found to have a low apparent porosity (<1.0 vol. %), moderate density 4.61 g/cm3, and low electrical resistivity 0.3 Ωcm. The dense composite exhibited excellent thermodynamic stability between its phases at 1400°C in open atmosphere.

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Guide of selecting substitutional elements for lower thermal conductive ceramics applied to thermal barrier coatings

Zhang

et al. 2023

Appl. Phys. A

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Sintering properties and thermal depletion of boron in zirconia–zirconium diboride conductive ceramic

Cited by 5 publications

References 47 publications

Microwave Crystallization of Lithium Aluminum Germanium Phosphate Solid-State Electrolyte

Microwave Crystallization of Lithium Aluminum Germanium Phosphate Solid-State Electrolyte

Processing of High‐Density Magnesia Spinel Electro‐Conducting Ceramic Composite and its Oxidation at 1400°C

Guide of selecting substitutional elements for lower thermal conductive ceramics applied to thermal barrier coatings

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