Preparation and characterizations of V2AlC‐Al2O3 composite produced via spark plasma sintering

A 2:1:1 MAX phase, V2AlC, composited with Al2O3 is prepared using spark plasma sintering (SPS). To obtain a sample with suitable physical and mechanical properties, an especial current rate regime is carried out for SPS. Different final temperatures of the synthesis (1000, 1200, 1400, and 1500°C) ar...

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Bibliographic Details
Published in:International journal of applied ceramic technology 2022-07, Vol.19 (4), p.1981-1990
Main Authors: Sadeghi, Leila, Razavi, Mansour, Kalantarian, Mohammad Mahdi, Rahimipour, Mohammad Reza, Hossein‐zadeh, Mohsen
Format: Article
Language:English
Subjects:
Aluminum oxide
Bulk density
characterization
composite
Grain size
MAX phase
Mechanical properties
Physical properties
Plasma sintering
Spark plasma sintering
synthesis
V2AlC
Wear resistance
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Summary:A 2:1:1 MAX phase, V2AlC, composited with Al2O3 is prepared using spark plasma sintering (SPS). To obtain a sample with suitable physical and mechanical properties, an especial current rate regime is carried out for SPS. Different final temperatures of the synthesis (1000, 1200, 1400, and 1500°C) are considered (named S1000, S1200, S1400, and S1500, respectively). Phase analysis, physical and mechanical properties characterizations, and morphology of the samples are performed to determine the quality of the samples. The best characterizations belong to the samples of S1400 and S1500. Bending strengths about 325 and 316 MPa are obtained for the samples of S1400 and S1500, respectively. Regarding the total MAX phases formation and strength, the optimum sample is S1400. However, regarding bulk density, wear resistance, and hardness, S1500 has an advantage over the S1400. The advantages of S1500, as well as its larger grain size, are attributed to the better sintering of Al2O3.
ISSN:1546-542X
1744-7402
DOI:10.1111/ijac.14043