Tensile strength and corrosion resistance properties of porous Al2O3/Ni composites prepared with rice husk pore-forming agent
The mechanical performance and chemical stability of porous alumina materials operating under harsh service conditions are of utmost importance in understanding their operational behavior if they are to stand the test of time. In the present study, the joint effect of nickel (Ni) reinforcement and r...
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| Format: | Article |
| Language: | English |
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Elsevier
2018
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| Online Access: | http://psasir.upm.edu.my/id/eprint/74098/ http://psasir.upm.edu.my/id/eprint/74098/1/RICE.pdf |
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| author | Dele-Afolabi, Temitope Theophilus Mohamed Ariff, Azmah Hanim Mazlan, Norkhairunnisa Sobri, Shafreeza Calin, Recep Zahari, Nur Ismarrubie |
| author_facet | Dele-Afolabi, Temitope Theophilus Mohamed Ariff, Azmah Hanim Mazlan, Norkhairunnisa Sobri, Shafreeza Calin, Recep Zahari, Nur Ismarrubie |
| author_sort | Dele-Afolabi, Temitope Theophilus |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | The mechanical performance and chemical stability of porous alumina materials operating under harsh service conditions are of utmost importance in understanding their operational behavior if they are to stand the test of time. In the present study, the joint effect of nickel (Ni) reinforcement and rice husk (RH) pore-forming agent (PFA) on the tensile strength and the corrosion resistance properties of composite porous alumina ceramics was studied. To exploit the potential of this new porous alumina system, plain and Ni-reinforced porous alumina samples (Al2O3-xNi-RH; x = 2, 4, 6 and 8 wt%) were developed through the powder metallurgy technique. Comprehensive investigation on the tensile strength properties of the developed porous alumina ceramics showed that relative to the plain sample (tensile strength and elastic modulus; 6.1 MPa and 1201 MPa), the presence of highly stable Ni3Al2SiO8 spinelloid promoted the tensile strength enhancement (12.6–6.4 MPa) and the elastic modulus decline (897–627 MPa) of the composite samples. Similarly, corrosion resistance test was performed on the composite porous alumina samples in both 10 wt% NaOH and 20 wt% H2SO4 hot aqueous solutions. Overall, the composite samples demonstrated superior chemical stability in NaOH solution as compared with the plain sample. On the other hand, the composites were more prone to attack in H2SO4 solution, except for the Al2O3-2Ni-10RH composite sample which maintained its superiority over the plain counterpart. |
| first_indexed | 2025-11-15T11:57:28Z |
| format | Article |
| id | upm-74098 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T11:57:28Z |
| publishDate | 2018 |
| publisher | Elsevier |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-740982021-06-21T06:25:16Z http://psasir.upm.edu.my/id/eprint/74098/ Tensile strength and corrosion resistance properties of porous Al2O3/Ni composites prepared with rice husk pore-forming agent Dele-Afolabi, Temitope Theophilus Mohamed Ariff, Azmah Hanim Mazlan, Norkhairunnisa Sobri, Shafreeza Calin, Recep Zahari, Nur Ismarrubie The mechanical performance and chemical stability of porous alumina materials operating under harsh service conditions are of utmost importance in understanding their operational behavior if they are to stand the test of time. In the present study, the joint effect of nickel (Ni) reinforcement and rice husk (RH) pore-forming agent (PFA) on the tensile strength and the corrosion resistance properties of composite porous alumina ceramics was studied. To exploit the potential of this new porous alumina system, plain and Ni-reinforced porous alumina samples (Al2O3-xNi-RH; x = 2, 4, 6 and 8 wt%) were developed through the powder metallurgy technique. Comprehensive investigation on the tensile strength properties of the developed porous alumina ceramics showed that relative to the plain sample (tensile strength and elastic modulus; 6.1 MPa and 1201 MPa), the presence of highly stable Ni3Al2SiO8 spinelloid promoted the tensile strength enhancement (12.6–6.4 MPa) and the elastic modulus decline (897–627 MPa) of the composite samples. Similarly, corrosion resistance test was performed on the composite porous alumina samples in both 10 wt% NaOH and 20 wt% H2SO4 hot aqueous solutions. Overall, the composite samples demonstrated superior chemical stability in NaOH solution as compared with the plain sample. On the other hand, the composites were more prone to attack in H2SO4 solution, except for the Al2O3-2Ni-10RH composite sample which maintained its superiority over the plain counterpart. Elsevier 2018 Article PeerReviewed text en http://psasir.upm.edu.my/id/eprint/74098/1/RICE.pdf Dele-Afolabi, Temitope Theophilus and Mohamed Ariff, Azmah Hanim and Mazlan, Norkhairunnisa and Sobri, Shafreeza and Calin, Recep and Zahari, Nur Ismarrubie (2018) Tensile strength and corrosion resistance properties of porous Al2O3/Ni composites prepared with rice husk pore-forming agent. Ceramics International, 44 (10). 11127 - 11135. ISSN 0272-8842 https://www.sciencedirect.com/science/article/pii/S0272884218306904 10.1016/j.ceramint.2018.03.124 |
| spellingShingle | Dele-Afolabi, Temitope Theophilus Mohamed Ariff, Azmah Hanim Mazlan, Norkhairunnisa Sobri, Shafreeza Calin, Recep Zahari, Nur Ismarrubie Tensile strength and corrosion resistance properties of porous Al2O3/Ni composites prepared with rice husk pore-forming agent |
| title | Tensile strength and corrosion resistance properties of porous Al2O3/Ni composites prepared with rice husk pore-forming agent |
| title_full | Tensile strength and corrosion resistance properties of porous Al2O3/Ni composites prepared with rice husk pore-forming agent |
| title_fullStr | Tensile strength and corrosion resistance properties of porous Al2O3/Ni composites prepared with rice husk pore-forming agent |
| title_full_unstemmed | Tensile strength and corrosion resistance properties of porous Al2O3/Ni composites prepared with rice husk pore-forming agent |
| title_short | Tensile strength and corrosion resistance properties of porous Al2O3/Ni composites prepared with rice husk pore-forming agent |
| title_sort | tensile strength and corrosion resistance properties of porous al2o3/ni composites prepared with rice husk pore-forming agent |
| url | http://psasir.upm.edu.my/id/eprint/74098/ http://psasir.upm.edu.my/id/eprint/74098/ http://psasir.upm.edu.my/id/eprint/74098/ http://psasir.upm.edu.my/id/eprint/74098/1/RICE.pdf |