Tensile strength and corrosion resistance properties of porous Al2O3/Ni composites prepared with rice husk pore-forming agent

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dc.contributor.authorDele-Afolabi, T. T.
dc.contributor.authorHanim, M. A. Azmah
dc.contributor.authorNorkhairunnisa, M.
dc.contributor.authorSobri, S.
dc.contributor.authorCalin, R.
dc.contributor.authorIsmarrubie, Z. N.
dc.date.accessioned2020-06-25T18:29:32Z
dc.date.available2020-06-25T18:29:32Z
dc.date.issued2018
dc.departmentKırıkkale Üniversitesi
dc.descriptionSobri, Shafreeza/0000-0002-5675-2186; Temitope, Dele-Afolabi/0000-0003-0187-9208
dc.description.abstractThe 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 10wt% NaOH and 20wt% 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.en_US
dc.description.sponsorshipResearch Management Center of Universiti Putra Malaysia [GP-IPS/2016/9486500]en_US
dc.description.sponsorshipThe authors are thankful to the Research Management Center of Universiti Putra Malaysia for providing financial support (GP-IPS/2016/9486500) to carry out this research study. The authors also acknowledge the Department of Metallurgy and Materials Engineering, Kirikkale University, Turkey for the ongoing partnership, endless support and fruitful feedback.en_US
dc.identifier.citationclosedAccessen_US
dc.identifier.doi10.1016/j.ceramint.2018.03.124
dc.identifier.endpage11135en_US
dc.identifier.issn0272-8842
dc.identifier.issn1873-3956
dc.identifier.issue10en_US
dc.identifier.scopus2-s2.0-85044296870
dc.identifier.scopusqualityQ1
dc.identifier.startpage11127en_US
dc.identifier.urihttps://doi.org/10.1016/j.ceramint.2018.03.124
dc.identifier.urihttps://hdl.handle.net/20.500.12587/7363
dc.identifier.volume44en_US
dc.identifier.wosWOS:000432768200015
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherElsevier Sci Ltden_US
dc.relation.ispartofCeramics International
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectPorous aluminaen_US
dc.subjectCompositesen_US
dc.subjectRice husken_US
dc.subjectMechanical propertiesen_US
dc.subjectCorrosion resistanceen_US
dc.titleTensile strength and corrosion resistance properties of porous Al2O3/Ni composites prepared with rice husk pore-forming agenten_US
dc.typeArticle

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