Advantages of combined sintering compared to conventional sintering of mechanically activated magnesium titanate | Zendy

Suzana Filipović | Zendy; Nina Obradović | Zendy; Vladimir B. Pavlović | Zendy; Darko Kosanović | Zendy; Miodrag Mitrić | Zendy; Nebojša Mitrović | Zendy; Václav Pouchlý | Zendy; Martin Kachlík | Zendy; Karel Maca | Zendy

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Advantages of combined sintering compared to conventional sintering of mechanically activated magnesium titanate

Author(s) -

Suzana Filipović,

Nina Obradović,

Vladimir B. Pavlović,

Darko Kosanović,

Miodrag Mitrić,

Nebojša Mitrović,

Václav Pouchlý,

Martin Kachlík,

Karel Maca

Publication year - 2014

Publication title -

science of sintering

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.309

H-Index - 25

eISSN - 1820-7413

pISSN - 0350-820X

DOI - 10.2298/sos1403283f

Subject(s) - sintering , materials science , ceramic , ball mill , porosity , magnesium , hot isostatic pressing , metallurgy , titanate , stoichiometry , pressing , argon , relative density , phase (matter) , composite material , chemistry , organic chemistry

In this article, the advantages of combined sintering in comparison with the conventional one, of mechanically activated magnesium titanate ceramic were investigated. The stoichiometric mixtures of MgO and TiO2 were mechano-chemically activated for 0, 10, 40, 80 and 160 minutes by ball milling and then isostatically pressed (CIP) to form green bodies. Conventional sintering was realized by heating up to 1400 oC and hold for 30 minutes in air atmosphere. Resulting ceramic samples with closed porosity were post-sintered by pressure assisted technique Hot Isostatic Pressing (HIP) at 1280 oC/3h in argon atmosphere with a pressure of 200 MPa. The best results were observed in the case of samples post-sintered by HIP, when single-phase MgTiO3 samples with relative density of 96% were prepared. [Projekat Ministarstva nauke Republike Srbije, br. OI 172057

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