Low velocity drop weight impact behaviour of Al2O3-Ni-ZrO2 and Al2O3-Ni-Cr2O3 ceramic composites
Particulate Al2O3 matrix nanocomposites containing 1 vol.%Ni were prepared by the heterogeneous precipitation method and the addition of 5 vol.% ZrO2 (ANZ) or 1 vol.% Cr2O3 (ANC). The prepared samples were subjected to the low energy drop weight impact tests to compare the behaviour of the composite...
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| Format: | Article |
| Language: | English |
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University of Novi Sad
2021-06-01
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| Series: | Processing and Application of Ceramics |
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| Online Access: | http://www.doiserbia.nb.rs/img/doi/1820-6131/2021/1820-61312102154K.pdf |
| _version_ | 1819131906948595712 |
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| author | Kafkaslıoğlu Yıldız Betül Büyük Murat Tür Yahya Kemal |
| author_facet | Kafkaslıoğlu Yıldız Betül Büyük Murat Tür Yahya Kemal |
| author_sort | Kafkaslıoğlu Yıldız Betül |
| collection | DOAJ |
| description | Particulate Al2O3 matrix nanocomposites containing 1 vol.%Ni were prepared by the heterogeneous precipitation method and the addition of 5 vol.% ZrO2 (ANZ) or 1 vol.% Cr2O3 (ANC). The prepared samples were subjected to the low energy drop weight impact tests to compare the behaviour of the composites under low energy impact and to investigate the damage mechanisms. The pure Al2O3, Al2O3/Ni, Al2O3/ZrO2 and Al2O3/Cr2O3 compositions with the same additive ratios were also produced to make the comparison systematically. Also, the Vickers hardness measurements were carried out and a significant increase in hardness was attained for both ANZ and ANC composites. The average hardness value around 24.8±1.0GPa was measured for the ANZ and ANC composites which means ~15% improvement compared to the pure Al2O3. Between all the compositions, the maximum force (Fmax) value was obtained for the ANZ (for 12 J impact energy level Fmax = 26617N) according to the low energy drop weight impact test results. Tensile radial crack network formation, cone formation, fracture and crushing of the cone structure were observed as damage mechanisms for all compositions. The volume of conical frustum structure was evaluated for each composition and the effect of microstructure on possible ballistic performance was also discussed. |
| first_indexed | 2024-12-22T09:22:57Z |
| format | Article |
| id | doaj.art-534c55289dcf4873a8e3ad90fbfcd423 |
| institution | Directory Open Access Journal |
| issn | 1820-6131 2406-1034 |
| language | English |
| last_indexed | 2024-12-22T09:22:57Z |
| publishDate | 2021-06-01 |
| publisher | University of Novi Sad |
| record_format | Article |
| series | Processing and Application of Ceramics |
| spelling | doaj.art-534c55289dcf4873a8e3ad90fbfcd4232022-12-21T18:31:09ZengUniversity of Novi SadProcessing and Application of Ceramics1820-61312406-10342021-06-0115215416310.2298/PAC2102154KLow velocity drop weight impact behaviour of Al2O3-Ni-ZrO2 and Al2O3-Ni-Cr2O3 ceramic compositesKafkaslıoğlu Yıldız Betül0Büyük Murat1Tür Yahya Kemal2Department of Metallurgical and Materials Engineering, Sivas University of Science and Technology, Sivas, TurkeyComposite Technologies Center of Excellence, Sabancı University-Kordsa, Istanbul Technology Development Zone, Istanbul, TurkeyDepartment of Materials Science and Engineering, Gebze Technical University, Gebze, TurkeyParticulate Al2O3 matrix nanocomposites containing 1 vol.%Ni were prepared by the heterogeneous precipitation method and the addition of 5 vol.% ZrO2 (ANZ) or 1 vol.% Cr2O3 (ANC). The prepared samples were subjected to the low energy drop weight impact tests to compare the behaviour of the composites under low energy impact and to investigate the damage mechanisms. The pure Al2O3, Al2O3/Ni, Al2O3/ZrO2 and Al2O3/Cr2O3 compositions with the same additive ratios were also produced to make the comparison systematically. Also, the Vickers hardness measurements were carried out and a significant increase in hardness was attained for both ANZ and ANC composites. The average hardness value around 24.8±1.0GPa was measured for the ANZ and ANC composites which means ~15% improvement compared to the pure Al2O3. Between all the compositions, the maximum force (Fmax) value was obtained for the ANZ (for 12 J impact energy level Fmax = 26617N) according to the low energy drop weight impact test results. Tensile radial crack network formation, cone formation, fracture and crushing of the cone structure were observed as damage mechanisms for all compositions. The volume of conical frustum structure was evaluated for each composition and the effect of microstructure on possible ballistic performance was also discussed.http://www.doiserbia.nb.rs/img/doi/1820-6131/2021/1820-61312102154K.pdfaluminacompositeshardnessmicrostructuredrop weight |
| spellingShingle | Kafkaslıoğlu Yıldız Betül Büyük Murat Tür Yahya Kemal Low velocity drop weight impact behaviour of Al2O3-Ni-ZrO2 and Al2O3-Ni-Cr2O3 ceramic composites Processing and Application of Ceramics alumina composites hardness microstructure drop weight |
| title | Low velocity drop weight impact behaviour of Al2O3-Ni-ZrO2 and Al2O3-Ni-Cr2O3 ceramic composites |
| title_full | Low velocity drop weight impact behaviour of Al2O3-Ni-ZrO2 and Al2O3-Ni-Cr2O3 ceramic composites |
| title_fullStr | Low velocity drop weight impact behaviour of Al2O3-Ni-ZrO2 and Al2O3-Ni-Cr2O3 ceramic composites |
| title_full_unstemmed | Low velocity drop weight impact behaviour of Al2O3-Ni-ZrO2 and Al2O3-Ni-Cr2O3 ceramic composites |
| title_short | Low velocity drop weight impact behaviour of Al2O3-Ni-ZrO2 and Al2O3-Ni-Cr2O3 ceramic composites |
| title_sort | low velocity drop weight impact behaviour of al2o3 ni zro2 and al2o3 ni cr2o3 ceramic composites |
| topic | alumina composites hardness microstructure drop weight |
| url | http://www.doiserbia.nb.rs/img/doi/1820-6131/2021/1820-61312102154K.pdf |
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