Sintering behavior and mechanical properties of alumina/zirconia multilayers composite via nano-powder processing

Salahi, E.; Esfahani, Hamid; Mobasherpour, Iman; Bijarchi, Mohamad Ali; Taheri, Mehdi

doi:10.1016/j.ceramint.2013.10.051

Cited by 8 publications

(5 citation statements)

References 26 publications

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“…32 In addition, these two components can develop residual stresses between the layers by two means: incompatibility of thermal expansion coefficients and transformation of the zirconia phase. In the first approach, the zirconia used is generally tetragonal stabilised with 3 mol.-% of yttrium [32][33][34][35][36][37][38][39][40][41][42][43][44][45][46][47][48][49][50][51] or, less commonly, 12 mol.-% of cerium. 52,53 In the second approach, non-stabilised (pure) zirconia is mixed with alumina, in quantities varying from 4 to 30 vol.-% of ZrO 2 in the layers that will produce compressive stresses.…”

Section: Ceramic Composites With Strong Interfacesmentioning

confidence: 99%

Multilayered ceramic composites – a review

Minatto

Milak

Noni

et al. 2014

Advances in Applied Ceramics

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With the aim of improving the toughness of ceramic materials, laminated composites have been successfully developed since Clegg et al. (1990) inserted weak interfaces using very thin graphite layers between silicon carbide sheets and obtained a composite that exhibited non-catastrophic fracture characteristics. The weak interface must allow the crack to deviate either by deflection or delamination; in other words, the interface must exhibit a fracture resistance that is lower than that of the matrix layer. In parallel, ceramic laminated composites with strong interfaces were developed in which the residual tensile and compressive stresses appeared in alternate layers during cooling after sintering. These composites are prepared by stacking ceramic sheets produced by lamination or tape casting or by the sequential formation of layers by slip casting, centrifugation or electrophoretic deposition. The techniques may be combined to obtain a composite with the most adequate configuration. This work presents a review about the obtainment of multilayered ceramic composites as a toughening mechanism of ceramic plates.

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Section: Ceramic Composites With Strong Interfacesmentioning

confidence: 99%

Multilayered ceramic composites – a review

Minatto

Milak

Noni

et al. 2014

Advances in Applied Ceramics

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“…Several methods for the fabrication of Al 2 O 3 –CTZ FGM have been reported in the literature including ceramics inkjet printing [ 19 ], tape casting, electrophoretic deposition [ 20 ], traditional [ 21 ], as well as a novel powder metallurgy technique, spark plasma sintering (SPS) [ 22 ]. Cai et al [ 23 ] and Sun et al [ 24 ] successfully produced layered Al 2 O 3 –CTZ FGM by traditional powder sintering and studied the optimal processing parameters to avoid cracks between the layers.…”

Section: Introductionmentioning

confidence: 99%

“…Other authors [ 25 ] emphasized the study of creeping mechanisms in FGM between the layers. Salahi et al [ 21 ] fabricated dual-, triple-, and quintuple-layered Al 2 O 3 –CTZ samples with different compositions and confirmed that the hardness and fracture toughness of the multi-layer Al 2 O 3 –ZrO 2 structure was higher than those of the double-layer structure. Marshall et al [ 26 ] fabricated laminar Al 2 O 3 –CTZ composites and showed a strong interaction between the layers.…”

Section: Introductionmentioning

confidence: 99%

Functionally Graded Al2O3–CTZ Ceramics Fabricated by Spark Plasma Sintering

et al. 2022

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We studied the fabrication of functionally graded Al2O3–CeO2-stabilized-ZrO2 (CTZ) ceramics by spark plasma sintering. The ceramic composite exhibits a gradual change in terms of composition and porosity in the axial direction. The composition gradient was created by layering starting powders with different Al2O3 to CTZ ratios, whereas the porosity gradient was established with a large temperature difference, which was induced by an asymmetric graphite tool configuration during sintering. SEM investigations confirmed the development of a porosity gradient from the top toward the bottom side of the Al2O3–CTZ ceramic and the relative pore volume distributed in a wide range from 0.02 to 100 µm for the samples sintered in asymmetric configuration (ASY), while for the reference samples (STD), the size of pores was limited in the nanometer scale. The microhardness test exhibited a gradual change along the axis of the ASY samples, reaching 10 GPa difference between the two opposite sides of the Al2O3–CTZ ceramics without any sign of delamination or cracks between the layers. The flexural strength of the samples for both series showed an increasing tendency with higher sintering temperatures. However, the ASY samples achieved higher strength due to their lower total porosity and the newly formed elongated CeAl11O18 particles.

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“…26,27 Compared with Al 2 O 3 film materials, ZrO 2 film has a higher mechanical strength and better thermal and chemical stability. 28,29 The alumina nanochannel film was modified with ZrO 2 through the deposition of ZrO 2 onto the inner wall and all the surface of the alumina film nanopore using the sol−gel template synthesis method. A sol precursor solution was prepared after mixing anhydrous ethanol and distilled water at the mass ratio of 1:1, and the solution was subsequently added to the ZrOCl 2 •8H 2 O formulated Zr + transparent solution at a concentration of 1 mol/L.…”

Section: Methodsmentioning

confidence: 99%

“…According to the literature, because of the instability of alumina film, the most promising film for the application of nanofiltration is zirconia film. , Compared with Al 2 O 3 film materials, ZrO 2 film has a higher mechanical strength and better thermal and chemical stability. , …”

Section: Experimental Detailsmentioning

confidence: 99%

Generation of a Molecular Imprinted Membrane by Coating Cellulose Acetate onto a ZrO₂-Modified Alumina Membrane for the Chiral Separation of Mandelic Acid Enantiomers

Huang

et al. 2018

Org. Process Res. Dev.

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An alumina template modified with ZrO2 was coated with cellulose acetate (CA) containing imprinted molecules for a novel enantioselective membrane. The preparation, morphologies, and properties of the different membranes were introduced and investigated. The morphologies of the membranes were examined using a scanning electron microscope. The best performing CA amount in the casting solution was observed to be 15 wt %, and this was chosen as the preparation amount for the resulting membrane. (S)-(+)-Mandelic acid was used as imprinted molecules to prepare the molecular imprinted nanochannel membrane, which enhanced the permselectivity and flux compared with the traditional membrane, and the separation factor was as high as 35. And this membrane has the best separation effect on (R,S)-mandelic acid when compared with (R,S)-malic acid and (R,S)-lactic acid.

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Sintering behavior and mechanical properties of alumina/zirconia multilayers composite via nano-powder processing

Cited by 8 publications

References 26 publications

Multilayered ceramic composites – a review

Multilayered ceramic composites – a review

Functionally Graded Al2O3–CTZ Ceramics Fabricated by Spark Plasma Sintering

Generation of a Molecular Imprinted Membrane by Coating Cellulose Acetate onto a ZrO₂-Modified Alumina Membrane for the Chiral Separation of Mandelic Acid Enantiomers

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Sintering behavior and mechanical properties of alumina/zirconia multilayers composite via nano-powder processing

Cited by 8 publications

References 26 publications

Multilayered ceramic composites – a review

Multilayered ceramic composites – a review

Functionally Graded Al2O3–CTZ Ceramics Fabricated by Spark Plasma Sintering

Generation of a Molecular Imprinted Membrane by Coating Cellulose Acetate onto a ZrO2-Modified Alumina Membrane for the Chiral Separation of Mandelic Acid Enantiomers

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Product

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Generation of a Molecular Imprinted Membrane by Coating Cellulose Acetate onto a ZrO₂-Modified Alumina Membrane for the Chiral Separation of Mandelic Acid Enantiomers