Highly textured 3D-printed translucent alumina through pressure-assisted sintering

Publikationen: Beitrag in FachzeitschriftArtikelForschung(peer-reviewed)

Autoren

Externe Organisationseinheiten

  • Universität für Chemie und Technologie in Prag

Abstract

Templated grain growth is a promising method for the fabrication of translucent alumina ceramics and a possible way to circumvent light scattering due to birefringence. In the present paper the effect of temperature, heating rate and dwell time on grain size, orientation, hardness and in-line transmittance is investigated on 3D-printed textured alumina. The samples were prepared by lithography-based ceramic manufacturing (LCM) of suspensions with fine-grained alumina, seeded by high aspect ratio templates and sintered by spark plasma sintering (SPS). A fully developed textured microstructure was achieved at 1600 °C for 1 h, whereas sufficient in-line transmittance of 54.6 % at 550 nm was achieved at 1700 °C for 3 h, albeit at the cost of considerable grain growth and loss of microstructural texturing.

Details

OriginalspracheEnglisch
Aufsatznummer100487
Seitenumfang6
FachzeitschriftOpen ceramics
Jahrgang16.2023
AusgabenummerDecember
Frühes Online-Datum12 Okt. 2023
DOIs
StatusVeröffentlicht - 12 Okt. 2023