Production and properties of phase separated porous glass

A sodium borosilicate glass (SBG) was produced by conventional melt-quenching. As cast glass was heat treated to induce phase separation (SBG-HT), followed by acid leaching with HCl to dissolve one of the separated phases; i.e. alkali rich borate phase, so that a porous glass (PG) was obtained. In order to alter the pore structure, produced PG was subsequently alkali (NaOH) leached or alternatively heat treated. The samples were characterized by techniques including XRD, SEM, N2 adsorption/desorption. The total pore volume for PG was found to be 0.314 cm3/g, reached to 0.370 cm3/g by alkali leaching, instead decreased to 0.227 cm3/g by heat treatment. The microhardness and tribological properties of SBG-HT and all PGs were evaluated by Vickers hardness and by pin on disk tribometer. For all PGs the microhardness values were lower, instead the wear rates were higher than that of the parent SBG-HT. © 2019 Elsevier Ltd and Techna Group S.r.l.

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Eser Adı
(dc.title)
Production and properties of phase separated porous glass
Yayın Türü
(dc.type)
Makale
Yazar/lar
(dc.contributor.author)
ERTUŞ, Emre Burak
Yazar/lar
(dc.contributor.author)
AHMETOĞLU, Çekdar Vakıf
Yazar/lar
(dc.contributor.author)
ÖZTÜRK, Abdullah
DOI Numarası
(dc.identifier.doi)
10.1016/j.ceramint.2019.10.232
Atıf Dizini
(dc.source.database)
Scopus
Konu Başlıkları
(dc.subject)
Sodium Borosilicate Glas
Konu Başlıkları
(dc.subject)
Porous Glass
Konu Başlıkları
(dc.subject)
Phase Separation
Konu Başlıkları
(dc.subject)
Leaching
Konu Başlıkları
(dc.subject)
Wear
Yayıncı
(dc.publisher)
Elsevier Ltd
Yayın Tarihi
(dc.date.issued)
2020
Kayıt Giriş Tarihi
(dc.date.accessioned)
2020-08-07T12:49:28Z
Açık Erişim tarihi
(dc.date.available)
2020-08-07T12:49:28Z
Kaynak
(dc.source)
Ceramics International
ISSN
(dc.identifier.issn)
02728842 (ISSN)
Özet
(dc.description.abstract)
A sodium borosilicate glass (SBG) was produced by conventional melt-quenching. As cast glass was heat treated to induce phase separation (SBG-HT), followed by acid leaching with HCl to dissolve one of the separated phases; i.e. alkali rich borate phase, so that a porous glass (PG) was obtained. In order to alter the pore structure, produced PG was subsequently alkali (NaOH) leached or alternatively heat treated. The samples were characterized by techniques including XRD, SEM, N2 adsorption/desorption. The total pore volume for PG was found to be 0.314 cm3/g, reached to 0.370 cm3/g by alkali leaching, instead decreased to 0.227 cm3/g by heat treatment. The microhardness and tribological properties of SBG-HT and all PGs were evaluated by Vickers hardness and by pin on disk tribometer. For all PGs the microhardness values were lower, instead the wear rates were higher than that of the parent SBG-HT. © 2019 Elsevier Ltd and Techna Group S.r.l.
Yayın Dili
(dc.language.iso)
en
Tek Biçim Adres
(dc.identifier.uri)
http://hdl.handle.net/20.500.12498/2725
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