Spark Plasma Sintering and Characterization of Al-TiB<sub>2</sub> Composites
In this study, Al-TiB<sub>2</sub> compacts fabricated by spark plasma sintering methods at different temperatures were characterized for densification, microstructural development, and mechanical properties. Sintering parameters used were temperatures of 500 °C and 550 °C under the press...
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MDPI AG
2020-08-01
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| Series: | Metals |
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| Online Access: | https://www.mdpi.com/2075-4701/10/9/1110 |
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| author | A. Raja Annamalai Muthe Srikanth A. Muthuchamy Shashank Acharya Anup Khisti Dinesh K. Agrawal Chun-Ping Jen |
| author_facet | A. Raja Annamalai Muthe Srikanth A. Muthuchamy Shashank Acharya Anup Khisti Dinesh K. Agrawal Chun-Ping Jen |
| author_sort | A. Raja Annamalai |
| collection | DOAJ |
| description | In this study, Al-TiB<sub>2</sub> compacts fabricated by spark plasma sintering methods at different temperatures were characterized for densification, microstructural development, and mechanical properties. Sintering parameters used were temperatures of 500 °C and 550 °C under the pressure of 30 MPa. A very dense microstructure with uniform phase distribution and porosity was produced in the sample sintered at 550 °C with 2.5 wt% TiB<sub>2</sub>. The same sample exhibited excellent hardness value, and a high-tensile strength attributed to full metallurgical bonding, presence of sub-micron sized grains, and their uniform distribution. These results show that the TiB<sub>2</sub> addition enhanced the composite’s hardness, sintered density, and tensile strength. In all the sintered samples, the fractographs revealed a mixed-mode fracture (ductile and brittle). |
| first_indexed | 2024-03-10T17:13:22Z |
| format | Article |
| id | doaj.art-9f1420e6f7934966ba2444a998603e4e |
| institution | Directory Open Access Journal |
| issn | 2075-4701 |
| language | English |
| last_indexed | 2024-03-10T17:13:22Z |
| publishDate | 2020-08-01 |
| publisher | MDPI AG |
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| series | Metals |
| spelling | doaj.art-9f1420e6f7934966ba2444a998603e4e2023-11-20T10:35:33ZengMDPI AGMetals2075-47012020-08-01109111010.3390/met10091110Spark Plasma Sintering and Characterization of Al-TiB<sub>2</sub> CompositesA. Raja Annamalai0Muthe Srikanth1A. Muthuchamy2Shashank Acharya3Anup Khisti4Dinesh K. Agrawal5Chun-Ping Jen6Centre for Innovative Manufacturing Research, VIT, Vellore 632014, IndiaSchool of Mechanical Engineering, VIT, Vellore 632014, IndiaDepartment of Metallurgical and Materials Engineering, NIT Tiruchirappalli, Tiruchirappalli 620015, IndiaSchool of Mechanical Engineering, VIT, Vellore 632014, IndiaSchool of Mechanical Engineering, VIT, Vellore 632014, IndiaMaterial Research Institute, Pennsylvania State University, State College, PA 16802, USADepartment of Mechanical Engineering, National Chung Cheng University, Chia-Yi 621, TaiwanIn this study, Al-TiB<sub>2</sub> compacts fabricated by spark plasma sintering methods at different temperatures were characterized for densification, microstructural development, and mechanical properties. Sintering parameters used were temperatures of 500 °C and 550 °C under the pressure of 30 MPa. A very dense microstructure with uniform phase distribution and porosity was produced in the sample sintered at 550 °C with 2.5 wt% TiB<sub>2</sub>. The same sample exhibited excellent hardness value, and a high-tensile strength attributed to full metallurgical bonding, presence of sub-micron sized grains, and their uniform distribution. These results show that the TiB<sub>2</sub> addition enhanced the composite’s hardness, sintered density, and tensile strength. In all the sintered samples, the fractographs revealed a mixed-mode fracture (ductile and brittle).https://www.mdpi.com/2075-4701/10/9/1110aluminum alloymetal matrix composites (MMCs)Al-6061TiB<sub>2</sub>spark plasma sinteringcharacterizationmicrostructure |
| spellingShingle | A. Raja Annamalai Muthe Srikanth A. Muthuchamy Shashank Acharya Anup Khisti Dinesh K. Agrawal Chun-Ping Jen Spark Plasma Sintering and Characterization of Al-TiB<sub>2</sub> Composites Metals aluminum alloy metal matrix composites (MMCs) Al-6061TiB<sub>2</sub> spark plasma sintering characterization microstructure |
| title | Spark Plasma Sintering and Characterization of Al-TiB<sub>2</sub> Composites |
| title_full | Spark Plasma Sintering and Characterization of Al-TiB<sub>2</sub> Composites |
| title_fullStr | Spark Plasma Sintering and Characterization of Al-TiB<sub>2</sub> Composites |
| title_full_unstemmed | Spark Plasma Sintering and Characterization of Al-TiB<sub>2</sub> Composites |
| title_short | Spark Plasma Sintering and Characterization of Al-TiB<sub>2</sub> Composites |
| title_sort | spark plasma sintering and characterization of al tib sub 2 sub composites |
| topic | aluminum alloy metal matrix composites (MMCs) Al-6061TiB<sub>2</sub> spark plasma sintering characterization microstructure |
| url | https://www.mdpi.com/2075-4701/10/9/1110 |
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