Instrumented and Vickers Indentation for the Characterization of Stiffness, Hardness and Toughness of Zirconia Toughened Al2O3 and SiC Armor

Nastić, A.; Merati, Ali Akbar; Bielawski, Mariusz; Bolduc, M.; Fakolujo, Olaniyi; Nganbe, Michel

doi:10.1016/j.jmst.2015.06.005

Cited by 107 publications

(35 citation statements)

References 28 publications

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“…The determination of Young's modulus as linear slope of the unloading curves from indentation load–displacement data was performed according to the Oliver‐Pharr model and ISO 14577 standard …”

Section: Methodssupporting

confidence: 81%

“…The determination of Young's modulus as linear slope of the unloading curves from indentation load-displacement data was performed according to the Oliver-Pharr model and ISO 14577 standard. 12,13 3 | RESULTS AND DISCUSSION Figure 1 shows the evolution of density, densification, and hardness of Al 2 O 3 /ZrO 2 with different titania content. It is interesting to note that the addition of only some weight percent of TiO 2 (5 wt%) allowed to obtain an increase of density of 32% compared with AZ-0.27T one, related with a clear increase in densification (up to 92%).…”

Section: Methodsmentioning

confidence: 99%

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Properties and microstructural aspects of TiO₂‐doped sintered Alumina‐Zirconia composite ceramics

Khaskhoussi

Bouhamed

Calabrese

et al. 2018

Int J Applied Ceramic Tech

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The effect of titania content on the densification, the phase transformation, the microstructures, and mechanical properties of 50 wt% Al2O3‐50 wt% ZrO2 (12 mol% CeO2) was evaluated. Ceramic composites with different TiO2 content (0.27, 5, 10 wt%) were prepared by pressureless sintering at low temperature (1400°C) for 2 hours in air. Dense ceramic was obtained by adding 5 wt% of TiO2 loading to improved mechanical properties. The microstructure analysis provided lots of information about solid‐state reactivity in alumina‐zirconia‐titania ternary system. The content of TiO2 strongly affected the phases evolution and the grain growth during sintering. Furthermore, a significant effect on mechanical properties and fracture behavior was also observed.

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Section: Methodssupporting

confidence: 81%

Section: Methodsmentioning

confidence: 99%

Properties and microstructural aspects of TiO₂‐doped sintered Alumina‐Zirconia composite ceramics

Khaskhoussi

Bouhamed

Calabrese

et al. 2018

Int J Applied Ceramic Tech

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“…The corresponding indentation fracture toughness of α‐MoSi 2 is estimated as follows:

K_{IC} = A {H_{normalV}}^{0.6} E^{0.4} a^{0.5} {true(\frac{c}{a} true)}^{- 0.56},

where A is a constant (0.0735), H V is the hardness, a is the indent diagonal, c is the average of the four surface cracks, and E is the Young's modulus (estimated in the present study). The cracks of the indents and indent diagonal were further characterized using a laser microscope and are shown in Figure .…”

Section: Resultsmentioning

confidence: 86%

Thermal and Mechanical Properties of α‐MoSi₂ as a High‐Temperature Material

Mohamad

Ohishi

Muta

et al. 2017

Physica Status Solidi (b)

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Among metal disilicide materials, α‐MoSi2 exhibits high thermal conductivity and high oxidation resistance at high temperatures, making it an attractive option for high temperature applications. In the present study, we fabricate α‐MoSi2 pellets with a density of 96% theoretical density (TD) and quantify the thermal properties (thermal conductivity and thermal expansion heat capacity), mechanical properties (Vickers hardness and fracture toughness), and electrical properties (Seebeck coefficient and electrical resistivity). In this paper, we evaluate the experimental data, and present a review of the literature. In addition, we attempt to correlate the heat capacity measurement obtained experimentally with the results of our theoretical calculations to identify their relationship.

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“…The indentation fracture toughness was evaluated from Anstis with the following formula (Equation 1.) applied in previous studies [22][23].…”

Section: Characterization and Mechanical Propertiesmentioning

confidence: 99%

The effect of yttrium oxide in hydroxyapatite/aluminum oxide hybrid biocomposite materials: Phase, mechanical and morphological evaluation

Özer

Öksüz

2019

Materialwissenschaft Werkst

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This study presents the fabrication and characterization of composite materials of hydroxyapatite and aluminum oxide. Hydroxyapatite powder was obtained from bovine bones via conventional calcination routine. Although hydroxyapatite shows great biocompatibility with the human body, its applications are limited to non-load bearing areas. For this purpose, fine powders of hydroxyapatite/alumina were admixed with 1 and 5 wt.% yittria. Powder-compacts were sintered by two-step sintering route by increasing temperature to 1550°C for 2 h and then sintering at 1450°C for 4 h. The effect of increasing yittria content on sintering behavior and mechanical properties was investigated in biocomposite hybrid materials.The effect of yttrium oxide in hydroxyapatite/aluminum oxide hybrid biocomposite … Materialwiss. Werkstofftech.

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Instrumented and Vickers Indentation for the Characterization of Stiffness, Hardness and Toughness of Zirconia Toughened Al2O3 and SiC Armor

Cited by 107 publications

References 28 publications

Properties and microstructural aspects of TiO₂‐doped sintered Alumina‐Zirconia composite ceramics

Properties and microstructural aspects of TiO₂‐doped sintered Alumina‐Zirconia composite ceramics

Thermal and Mechanical Properties of α‐MoSi₂ as a High‐Temperature Material

The effect of yttrium oxide in hydroxyapatite/aluminum oxide hybrid biocomposite materials: Phase, mechanical and morphological evaluation

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Instrumented and Vickers Indentation for the Characterization of Stiffness, Hardness and Toughness of Zirconia Toughened Al2O3 and SiC Armor

Cited by 107 publications

References 28 publications

Properties and microstructural aspects of TiO2‐doped sintered Alumina‐Zirconia composite ceramics

Properties and microstructural aspects of TiO2‐doped sintered Alumina‐Zirconia composite ceramics

Thermal and Mechanical Properties of α‐MoSi2 as a High‐Temperature Material

The effect of yttrium oxide in hydroxyapatite/aluminum oxide hybrid biocomposite materials: Phase, mechanical and morphological evaluation

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Product

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Properties and microstructural aspects of TiO₂‐doped sintered Alumina‐Zirconia composite ceramics

Properties and microstructural aspects of TiO₂‐doped sintered Alumina‐Zirconia composite ceramics

Thermal and Mechanical Properties of α‐MoSi₂ as a High‐Temperature Material