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المؤلفDhuban S.B.
المؤلفRamesh S.
المؤلفTan C.Y.
المؤلفWong Y.H.
المؤلفJohnson Alengaram U.
المؤلفTeng W.D.
المؤلفTarlochan F.
المؤلفSutharsini U.
تاريخ الإتاحة2020-04-09T12:27:27Z
تاريخ النشر2019
اسم المنشورCeramics International
المصدرScopus
الرقم المعياري الدولي للكتاب2728842
معرّف المصادر الموحدhttp://dx.doi.org/10.1016/j.ceramint.2018.12.207
معرّف المصادر الموحدhttp://hdl.handle.net/10576/13985
الملخصThe effect of manganese (0.1, 0.5 and 1.0 wt%) on the sintering and mechanical properties of alumina was studied. Sintering was carried out by the conventional heating method in a box furnace and in a hybrid multimode microwave furnace. XRD analysis revealed the precipitation of a spinel second phase (MnAl 2 O 4 ) in manganese-doped samples as a result of manganese limited solubility in the corundum lattice. The addition of 0.1 wt% manganese was most beneficial in enhancing the densification of alumina (97.5% relative density when compared to 94.2% for the undoped sample), hindered grain growth, and improved the hardness of the ceramic when sintered at 1500 C. The study also revealed that microwave sintering was effective in suppressing grain growth of alumina. In addition, the hardness was dependent on the sintered bulk density and that grain coarsening ensued as the density of the sintered alumina exceeded 95% of theoretical.
راعي المشروعThe authors gratefully acknowledge University of Malaya , Malaysia for the support rendered in carrying out this research.
اللغةen
الناشرElsevier Ltd
الموضوعAlumina
Conventional sintering
Manganese doping
Microwave sintering
Sintering additive
العنوانSintering behaviour and properties of manganese-doped alumina
النوعArticle
الصفحات7049-7054
رقم العدد6
رقم المجلد45
dc.accessType Abstract Only


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