Preparation and characterization of 6-layered functionally graded nickel-alumina (Ni-Al2O3) composites
The present research study deals with the preparation of 6-layered functionally graded (FG) metal-ceramic composite materials through powder metallurgy technique. Using a cylindrical die-punch set made of steel, the nickel-alumina (Ni-Al2O3) graded composite structure was fabricated. The samples con...
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| Format: | Conference or Workshop Item |
| Language: | English |
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IOP Publishing
2018
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| Online Access: | http://umpir.ump.edu.my/id/eprint/22069/1/Preparation%20and%20characterization%20of%206-layered%20functionally%20graded%20nickel-alumina.pdf |
| _version_ | 1796992875775393792 |
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| author | Muhammad Ihsan, Abdul Latiff Nuruzzaman, D. M. Shahnor, Basri Noor Mazni, Ismail Siti Nur Sakinah, Jamaludin Farah Fazira, Kamaruzaman |
| author_facet | Muhammad Ihsan, Abdul Latiff Nuruzzaman, D. M. Shahnor, Basri Noor Mazni, Ismail Siti Nur Sakinah, Jamaludin Farah Fazira, Kamaruzaman |
| author_sort | Muhammad Ihsan, Abdul Latiff |
| collection | UMP |
| description | The present research study deals with the preparation of 6-layered functionally graded (FG) metal-ceramic composite materials through powder metallurgy technique. Using a cylindrical die-punch set made of steel, the nickel-alumina (Ni-Al2O3) graded composite structure was fabricated. The samples consist of four gradual inter layers of varied nickel composition (80wt.%, 60wt.%, 40wt.%, 20wt.%) sandwiched with pure Ni and Al2O3 powders at the ends (100wt.% and 0wt.% nickel) were fabricated under 30 ton compaction load using a hydraulic press. After that, two-step sintering was carried out at sintering temperature 1200ºC and soaking time 3 hours was maintained in a tube furnace. The properties of the prepared samples were characterized by radial shrinkage, optical microscopy and hardness testing. Results showed that larger shrinkage occurred within the ceramic phase which proves that more porosities were eliminated in the ceramic rich layers. From the microstructural analysis, it was observed that alumina particles are almost uniformly distributed in nickel matrix, so as nickel particles in the ceramic matrix of alumina-dominant layers. From interfacial analyses, it was observed that a smooth transition in microstructure from one layer to the next confirms a good interfacial solid state bonding between metal-ceramic constituents and good compaction process. On the other hand, microhardness test results suggest that there might be increasing percentage of porosities in the graded structure as the ceramic content rises. |
| first_indexed | 2024-03-06T12:26:06Z |
| format | Conference or Workshop Item |
| id | UMPir22069 |
| institution | Universiti Malaysia Pahang |
| language | English |
| last_indexed | 2024-03-06T12:26:06Z |
| publishDate | 2018 |
| publisher | IOP Publishing |
| record_format | dspace |
| spelling | UMPir220692022-09-14T02:19:38Z http://umpir.ump.edu.my/id/eprint/22069/ Preparation and characterization of 6-layered functionally graded nickel-alumina (Ni-Al2O3) composites Muhammad Ihsan, Abdul Latiff Nuruzzaman, D. M. Shahnor, Basri Noor Mazni, Ismail Siti Nur Sakinah, Jamaludin Farah Fazira, Kamaruzaman TJ Mechanical engineering and machinery The present research study deals with the preparation of 6-layered functionally graded (FG) metal-ceramic composite materials through powder metallurgy technique. Using a cylindrical die-punch set made of steel, the nickel-alumina (Ni-Al2O3) graded composite structure was fabricated. The samples consist of four gradual inter layers of varied nickel composition (80wt.%, 60wt.%, 40wt.%, 20wt.%) sandwiched with pure Ni and Al2O3 powders at the ends (100wt.% and 0wt.% nickel) were fabricated under 30 ton compaction load using a hydraulic press. After that, two-step sintering was carried out at sintering temperature 1200ºC and soaking time 3 hours was maintained in a tube furnace. The properties of the prepared samples were characterized by radial shrinkage, optical microscopy and hardness testing. Results showed that larger shrinkage occurred within the ceramic phase which proves that more porosities were eliminated in the ceramic rich layers. From the microstructural analysis, it was observed that alumina particles are almost uniformly distributed in nickel matrix, so as nickel particles in the ceramic matrix of alumina-dominant layers. From interfacial analyses, it was observed that a smooth transition in microstructure from one layer to the next confirms a good interfacial solid state bonding between metal-ceramic constituents and good compaction process. On the other hand, microhardness test results suggest that there might be increasing percentage of porosities in the graded structure as the ceramic content rises. IOP Publishing 2018-04 Conference or Workshop Item PeerReviewed pdf en cc_by http://umpir.ump.edu.my/id/eprint/22069/1/Preparation%20and%20characterization%20of%206-layered%20functionally%20graded%20nickel-alumina.pdf Muhammad Ihsan, Abdul Latiff and Nuruzzaman, D. M. and Shahnor, Basri and Noor Mazni, Ismail and Siti Nur Sakinah, Jamaludin and Farah Fazira, Kamaruzaman (2018) Preparation and characterization of 6-layered functionally graded nickel-alumina (Ni-Al2O3) composites. In: International Conference on Innovative Technology, Engineering and Sciences, iCITES 2018 , 01-02 March 2018 , Universiti Malaysia Pahang. pp. 1-8., 342 (1). ISSN 1757-8981 (Print); 1757-899X (Online) http://iopscience.iop.org/article/10.1088/1757-899X/342/1/012063/pdf |
| spellingShingle | TJ Mechanical engineering and machinery Muhammad Ihsan, Abdul Latiff Nuruzzaman, D. M. Shahnor, Basri Noor Mazni, Ismail Siti Nur Sakinah, Jamaludin Farah Fazira, Kamaruzaman Preparation and characterization of 6-layered functionally graded nickel-alumina (Ni-Al2O3) composites |
| title | Preparation and characterization of 6-layered functionally graded nickel-alumina (Ni-Al2O3) composites |
| title_full | Preparation and characterization of 6-layered functionally graded nickel-alumina (Ni-Al2O3) composites |
| title_fullStr | Preparation and characterization of 6-layered functionally graded nickel-alumina (Ni-Al2O3) composites |
| title_full_unstemmed | Preparation and characterization of 6-layered functionally graded nickel-alumina (Ni-Al2O3) composites |
| title_short | Preparation and characterization of 6-layered functionally graded nickel-alumina (Ni-Al2O3) composites |
| title_sort | preparation and characterization of 6 layered functionally graded nickel alumina ni al2o3 composites |
| topic | TJ Mechanical engineering and machinery |
| url | http://umpir.ump.edu.my/id/eprint/22069/1/Preparation%20and%20characterization%20of%206-layered%20functionally%20graded%20nickel-alumina.pdf |
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