Influence of pores arrangement on stability of photonic structures during sintering

Medientyp: E-Artikel

Titel: Influence of pores arrangement on stability of photonic structures during sintering

Beteiligte: Dosta, Maksym [Verfasser:in]; Furlan, Kaline P. [Verfasser:in]; Skorych, Vasyl [Verfasser:in]; Heinrich, Stefan [Verfasser:in]; Janßen, Rolf [Verfasser:in]

Körperschaft: Technische Universität Hamburg ; Technische Universität Hamburg, Institut für Keramische Hochleistungswerkstoffe ; Technische Universität Hamburg, Institute of Solids Process Engineering & Particle Technology

Erschienen: 2020

Sprache: Englisch

DOI: 10.15480/882.2873; 10.1016/j.jeurceramsoc.2020.04.019

Identifikator:

Schlagwörter: Discrete element method (DEM) ; Inverse opals ; Ordered macroporous structures ; Sintering

Entstehung:

Anmerkungen: Sonstige Körperschaft: Technische Universität Hamburg
Sonstige Körperschaft: Technische Universität Hamburg, Institut für Keramische Hochleistungswerkstoff
Sonstige Körperschaft: Technische Universität Hamburg, Institute of Solids Process Engineering & Particle Technology

Beschreibung: Discrete Element Method (DEM) has been used for numerical investigation of sintering-induced structural deformations occurring in inverse opal photonic structures. The influence of the initial arrangement of template particles on the stability of highly porous inverse opal α-Al2O3 structures has been analyzed. The material transport, densification, as well as formation of defects and cracks have been compared for various case studies. Three different stages of defects formation have been distinguished starting with local defects ending with intrapore cracks. The results show that the packing of the template particles defined during the template self-assembly process play a crucial role in the later structural deformation upon thermal exposure. The simulation results are in very good agreement with experimental data obtained from SEM images and previous studies by ptychographic X-ray tomography.

Zugangsstatus: Freier Zugang

Rechte-/Nutzungshinweise: Namensnennung (CC BY)

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