Reactive hydrothermal liquid-phase densification (rHLPD) of ceramics - a study of the BaTiO3[TiO2] composite system

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dc.contributor.authorVakıfahmetoglu, Cekdar
dc.contributor.authorAnger, Jean Francois
dc.contributor.authorAtakan, Vahit
dc.contributor.authorQuinn, Sean
dc.contributor.authorGupta, Surojit
dc.contributor.authorLi, Qinghua
dc.contributor.authorRiman, Richard E.
dc.date.accessioned2021-05-15T12:36:54Z
dc.date.available2021-05-15T12:36:54Z
dc.date.issued2016
dc.departmentMühendislik ve Doğa Bilimleri Fakültesi, Makine Mühendisliği Bölümüen_US
dc.descriptionRiman, Richard Eric/0000-0002-4289-5768; Vakifahmetoglu, Cekdar/0000-0003-1222-4362
dc.description.abstractA densification process called reactive hydrothermal liquid-phase densification (rHLPD), based on principles of hydrothermal reaction, infiltration, reactive crystallization, and liquid-phase sintering, is presented. rHLPD can be used to form monolithic ceramic components at low temperatures. The densification of barium titanate-titania composite monoliths was studied to demonstrate proof of concept for this densification model. Permeable, green titania (anatase) compacts were infiltrated with aqueous barium hydroxide solutions and reacted under hydrothermal conditions in the temperature range 90 degrees C-240 degrees C. The effects of reaction time and temperature on the conversion of titania (anatase) into barium titanate were studied. Utilizing a 72 h reaction at 240 degrees C between l.0 M Ba (OH)(2), an anatase (TiO2) powder compact, and a corresponding Ba/Ti ratio of 1.5, it was possible to crystallize a composite 95 wt% (88 mol%) BaTiO3 and 5 wt% (12 mol%) TiO2. The composite had a relative density of similar to 90% with a compressive strength of 172 +/- 21 MPa and a flexural strength of 49 +/- 4 MPa.en_US
dc.description.sponsorshipSolidia Technologies, Inc.; DOD-DON-Office of Naval Research [N00014-12-1-0524]; DOD-DOA-Army Research Laboratory [W911NF-12-2-0015]en_US
dc.description.sponsorshipThis work was generously supported by Solidia Technologies, Inc., DOD-DON-Office of Naval Research, Grant Contract N00014-12-1-0524, and DOD-DOA-Army Research Laboratory, Contract number: W911NF-12-2-0015; R.E. Riman holds a financial interest in Solidia Technologies, Inc. The authors are greatly indebted to Ms. Janet Pescinski for editing the text and Dr. Kevin Blinn for his assistance with some of the figures.en_US
dc.identifier.doi10.1111/jace.14468
dc.identifier.endpage3901en_US
dc.identifier.issn0002-7820
dc.identifier.issn1551-2916
dc.identifier.issue12en_US
dc.identifier.scopus2-s2.0-84983650277
dc.identifier.scopusqualityQ1
dc.identifier.startpage3893en_US
dc.identifier.urihttps://doi.org/10.1111/jace.14468
dc.identifier.urihttps://hdl.handle.net/20.500.12939/433
dc.identifier.volume99en_US
dc.identifier.wosWOS:000393844100007
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.institutionauthorVakıfahmetoglu, Cekdar
dc.language.isoen
dc.publisherWileyen_US
dc.relation.ispartofJournal of the American Ceramic Society
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectHydrothermal Processen_US
dc.subjectDensificationen_US
dc.subjectBarium Titanateen_US
dc.subjectMechanical Propertiesen_US
dc.titleReactive hydrothermal liquid-phase densification (rHLPD) of ceramics - a study of the BaTiO3[TiO2] composite system
dc.typeArticle

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