Effect of rare earth dopants on structural and mechanical properties of nanoceria synthesized by combustion method

A. Akbari-Fakhrabadi; V. Meruane; M. Jamshidijam; M. A. Gracia-Pinilla; R. V. Mangalaraja

doi:10.1016/j.msea.2015.09.125

Effect of rare earth dopants on structural and mechanical properties of nanoceria synthesized by combustion method

A. Akbari-Fakhrabadi, V. Meruane, M. Jamshidijam, M. A. Gracia-Pinilla, R. V. Mangalaraja

Research output: Contribution to journal › Article › peer-review

12 Scopus citations

Abstract

Structural characteristics of combustion synthesized, calcined and densified pure and doped nanoceria with tri-valent cations of Er, Y, Gd, Sm and Nd were analyzed by X-ray diffraction (XRD) and high resolution transmission electron microscopy (HRTEM). The results showed that the as-synthesized and calcined nanopowders were mesoporous and calculated lattice parameters were close to theoretical ion-packing model. The effect of dopants on elastic modulus, microhardness and fracture toughness of sintered pure and doped ceria were investigated. It was observed that tri-valent cation dopants increased the hardness of the ceria, whereas the fracture toughness and elastic modulus were decreased.

Original language	English
Pages (from-to)	168-173
Number of pages	6
Journal	Materials Science and Engineering A
Volume	649
DOIs	https://doi.org/10.1016/j.msea.2015.09.125
State	Published - 1 Jan 2016
Externally published	Yes

Keywords

Combustion synthesis
Doped ceria
Mechanical properties
Mesoporous

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10.1016/j.msea.2015.09.125

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title = "Effect of rare earth dopants on structural and mechanical properties of nanoceria synthesized by combustion method",

abstract = "Structural characteristics of combustion synthesized, calcined and densified pure and doped nanoceria with tri-valent cations of Er, Y, Gd, Sm and Nd were analyzed by X-ray diffraction (XRD) and high resolution transmission electron microscopy (HRTEM). The results showed that the as-synthesized and calcined nanopowders were mesoporous and calculated lattice parameters were close to theoretical ion-packing model. The effect of dopants on elastic modulus, microhardness and fracture toughness of sintered pure and doped ceria were investigated. It was observed that tri-valent cation dopants increased the hardness of the ceria, whereas the fracture toughness and elastic modulus were decreased.",

keywords = "Combustion synthesis, Doped ceria, Mechanical properties, Mesoporous",

author = "A. Akbari-Fakhrabadi and V. Meruane and M. Jamshidijam and Gracia-Pinilla, {M. A.} and Mangalaraja, {R. V.}",

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doi = "10.1016/j.msea.2015.09.125",

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journal = "Materials Science and Engineering A",

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TY - JOUR

T1 - Effect of rare earth dopants on structural and mechanical properties of nanoceria synthesized by combustion method

AU - Akbari-Fakhrabadi, A.

AU - Meruane, V.

AU - Jamshidijam, M.

AU - Gracia-Pinilla, M. A.

AU - Mangalaraja, R. V.

PY - 2016/1/1

Y1 - 2016/1/1

N2 - Structural characteristics of combustion synthesized, calcined and densified pure and doped nanoceria with tri-valent cations of Er, Y, Gd, Sm and Nd were analyzed by X-ray diffraction (XRD) and high resolution transmission electron microscopy (HRTEM). The results showed that the as-synthesized and calcined nanopowders were mesoporous and calculated lattice parameters were close to theoretical ion-packing model. The effect of dopants on elastic modulus, microhardness and fracture toughness of sintered pure and doped ceria were investigated. It was observed that tri-valent cation dopants increased the hardness of the ceria, whereas the fracture toughness and elastic modulus were decreased.

AB - Structural characteristics of combustion synthesized, calcined and densified pure and doped nanoceria with tri-valent cations of Er, Y, Gd, Sm and Nd were analyzed by X-ray diffraction (XRD) and high resolution transmission electron microscopy (HRTEM). The results showed that the as-synthesized and calcined nanopowders were mesoporous and calculated lattice parameters were close to theoretical ion-packing model. The effect of dopants on elastic modulus, microhardness and fracture toughness of sintered pure and doped ceria were investigated. It was observed that tri-valent cation dopants increased the hardness of the ceria, whereas the fracture toughness and elastic modulus were decreased.

KW - Combustion synthesis

KW - Doped ceria

KW - Mechanical properties

KW - Mesoporous

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U2 - 10.1016/j.msea.2015.09.125

DO - 10.1016/j.msea.2015.09.125

M3 - Article

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SN - 0921-5093

VL - 649

SP - 168

EP - 173

JO - Materials Science and Engineering A

JF - Materials Science and Engineering A

ER -

Effect of rare earth dopants on structural and mechanical properties of nanoceria synthesized by combustion method

Abstract

Keywords

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