Development of input output relationships for self-healing Al2O3/SiC ceramic composites with Y2O3 additive using design of experiments

Mohanty, Debajyoti; Sil, Anjan; Maiti, Kuntal

doi:10.1016/j.ceramint.2011.03.046

Cited by 19 publications

(5 citation statements)

References 22 publications

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“…28 This method is successfully used in various types of experimental investigations in a wide range of engineering fields. [29][30][31][32][33] An orthogonal array of N runs is usually represented as L runs (levels factors ). Runs are the number of rows or the number of test cases in the array that will be generated by an orthogonal array technique.…”

Section: Final Modification Using Design Of Experimentsmentioning

confidence: 99%

Experimental and numerical survey on tensile fracture of polycrystalline graphite using design of experiments

Shakouri

Khodadad

Rezaeibana

2014

Proceedings of the Institution of Mechanical Engineers, Part L:

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A new test specimen for a tensile test of industrial graphite is introduced using experiment and finite element results. The most influencing factors on the tensile strength of the test specimens are considered and the number of tests, which are necessary to optimize the tensile strengths are reduced based on the design of experiment using the Taguchi method and the effects of all factors on strength of test samples are studied. Comparison of the predicted strengths based on the Taguchi approach with the measured experimental results and finite element analysis shows a good correlation between them. In addition, results show that the new introduced specimen makes a 33% increase in the probability of fracture of the test specimens in gage length and the measured tensile strengths are 20% higher than those measured using the standard of the American Society for Testing and Materials.

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Section: Final Modification Using Design Of Experimentsmentioning

confidence: 99%

Experimental and numerical survey on tensile fracture of polycrystalline graphite using design of experiments

Shakouri

Khodadad

Rezaeibana

2014

Proceedings of the Institution of Mechanical Engineers, Part L:

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“…Therefore, it has been widely used in dielectric applications. 13 In recent decades, many efforts have been made on Al 2 O 3 -SiC ceramic composites, in which micro-or nano-sized SiC particles play a key role in the reinforcement of the alumina matrix. 4 However, as to the strong ionic-covalent bonds and the rhombohedral structure, the dislocation movements are restricted and this material proposes a low fracture toughness and strength.…”

Section: Introductionmentioning

confidence: 99%

“…There are several materials which have been used as the second phase particles to enhance the properties of Al 2 O 3 matrixes including SiC, 8 ZrO 2 , 9 TiN/TiC/TiO 2 , 10,11 BN, 12 and Y 2 O 3 . 13 In recent decades, many efforts have been made on Al 2 O 3 -SiC ceramic composites, in which micro-or nano-sized SiC particles play a key role in the reinforcement of the alumina matrix. Although, the hot pressing procedure is usually utilized for the sintering of these composites 5,8 , to facilitating the densification of these composites, the pressureless 14,15 , and spark plasma sintering (SPS) 16,17 techniques are applied, too.…”

Section: Introductionmentioning

confidence: 99%

The influence of different SiC amounts on the microstructure, densification, and mechanical properties of hot‐pressed Al₂O₃‐SiC composites

Akbari

Kakroudi

Shahedifar

et al. 2019

Int J Applied Ceramic Tech

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The hot pressing process of monolithic Al 2 O 3 and Al 2 O 3 -SiC composites with 0-25 wt% of submicrometer silicon carbide was done in this paper. The presence of SiC particles prohibited the grain growth of the Al 2 O 3 matrix during sintering at the temperatures of 1450°C and 1550°C for 1 h and under the pressure of 30 MPa in vacuum. The effect of SiC reinforcement on the mechanical properties of composite specimens like fracture toughness, flexural strength, and hardness was discussed.The results showed that the maximum values of fracture toughness (5.9 ± 0.5 MPa. m 1/2 ) and hardness (20.8 ± 0.4 GPa) were obtained for the Al 2 O 3 -5 wt% SiC composite specimens. The significant improvement in fracture toughness of composite specimens in comparison with the monolithic alumina (3.1 ± 0.4 MPa.m 1/2 ) could be attributed to crack deflection as one of the toughening mechanisms with regard to the presence of SiC particles. In addition, the flexural strength was improved by increasing SiC value up to 25 wt% and reached 395 ± 1.4 MPa. The scanning electron microscopy (SEM) observations verified that the increasing of flexural strength was related to the fine-grained microstructure. K E Y W O R D S alumina, ceramic composites, densification, hot pressing, mechanical properties, microstructure, silicon carbide How to cite this article: Akbari E, Ghassemi Kakroudi M, Shahedifar V, Ghiasi H. The influence of different SiC amounts on the microstructure, densification, and mechanical properties of hot-pressed Al 2 O 3 -SiC composites. Int J Appl Ceram Technol. 2020;17:491-500. https ://doi.

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“…For example, the phase purity, crystallinity, crystallite size, lattice parameters, and particle size of hydroxyapatite were optimized from input variables such as reaction synthesis temperature, stirring speed, ripening time, acid addition rate, initial calcium concentration, and atmospheric environment. 17 Recently, Taguchi method has been used to statistically assess the machinability of AISI 4340 steel with Zirconia Toughened Alumina (ZTA) ceramic inserts, and the results was used to optimize the cutting speed, depth cut, and feed rate. 13,14 Such wide approach is not considered in other statistical methods.…”

Section: Introductionmentioning

confidence: 99%

“…For example, the mechanical behavior and failure of SiC-Y 2 O 3 composite were analyzed using Taguchi method in reference to processing parameters, volume percentage of particulate, temperature, time, and load. 17 Recently, Taguchi method has been used to statistically assess the machinability of AISI 4340 steel with Zirconia Toughened Alumina (ZTA) ceramic inserts, and the results was used to optimize the cutting speed, depth cut, and feed rate. 18 In the above backdrop, the objective of the present work is to demonstrate the use of RSM approach for a model bioceramic, i.e., zirconia-toughened alumina.…”

Section: Introductionmentioning

confidence: 99%

Implementing statistical modeling approach towards development of ultrafine grained bioceramics: Case of ZrO₂‐toughened Al₂O₃

2017

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The application of statistical modeling approach with the predictive capability of sinter density and grain size is perceived as a central theme in the development of next generation ceramics. Such computationally intensive method can be equally significant, if the predicted process conditions can be adapted experimentally to develop complex shaped ceramics with variable sizes. In the first ever attempt to address such issues for the ceramics, we have, in the present work, considered a range of factors and levels from relevant process variables (sintering temperature, sintering time) and material variables (sinter‐aid addition and reinforcement content) as input parameters to formulate data‐driven, high throughput analytical assays by response surface method (RSM). Using ZrO2 toughened Al2O3 (ZTA) as a model system, the adopted RSM approach has been used to quantitatively predict independent and interactive role of process and material variables on sinter density and grain size.

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Development of input output relationships for self-healing Al2O3/SiC ceramic composites with Y2O3 additive using design of experiments

Cited by 19 publications

References 22 publications

Experimental and numerical survey on tensile fracture of polycrystalline graphite using design of experiments

Experimental and numerical survey on tensile fracture of polycrystalline graphite using design of experiments

The influence of different SiC amounts on the microstructure, densification, and mechanical properties of hot‐pressed Al₂O₃‐SiC composites

Implementing statistical modeling approach towards development of ultrafine grained bioceramics: Case of ZrO₂‐toughened Al₂O₃

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Development of input output relationships for self-healing Al2O3/SiC ceramic composites with Y2O3 additive using design of experiments

Cited by 19 publications

References 22 publications

Experimental and numerical survey on tensile fracture of polycrystalline graphite using design of experiments

Experimental and numerical survey on tensile fracture of polycrystalline graphite using design of experiments

The influence of different SiC amounts on the microstructure, densification, and mechanical properties of hot‐pressed Al2O3‐SiC composites

Implementing statistical modeling approach towards development of ultrafine grained bioceramics: Case of ZrO2‐toughened Al2O3

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Product

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The influence of different SiC amounts on the microstructure, densification, and mechanical properties of hot‐pressed Al₂O₃‐SiC composites

Implementing statistical modeling approach towards development of ultrafine grained bioceramics: Case of ZrO₂‐toughened Al₂O₃