TUHH Open Research
Help
  • Log In
    New user? Click here to register.Have you forgotten your password?
  • English
  • Deutsch
  • Communities & Collections
  • Publications
  • Research Data
  • People
  • Institutions
  • Projects
  • Statistics
  1. Home
  2. TUHH
  3. Publications
  4. Large-scale parallel alignment of platelet-shaped particles through gravitational sedimentation
 
Options

Large-scale parallel alignment of platelet-shaped particles through gravitational sedimentation

Citation Link: https://doi.org/10.15480/882.1399
Publikationstyp
Journal Article
Date Issued
2015-05-18
Sprache
English
Author(s)
Behr, Sebastian  
Vainio, Ulla  
Müller, Martin  
Schreyer, Andreas  
Schneider, Gerold A.  
Institut
Keramische Hochleistungswerkstoffe M-9  
TORE-DOI
10.15480/882.1399
TORE-URI
http://tubdok.tub.tuhh.de/handle/11420/1402
Journal
Scientific reports  
Citation
Scientific Reports 5, Article number: 9984 (2015)
Publisher DOI
10.1038/srep09984
Scopus ID
2-s2.0-84929590387
Parallel and concentric alignment of microscopic building blocks into several orders of magnitude larger structures is commonly observed in nature. However, if similarly aligned structures are artificially produced their thickness is generally limited to just about one or two orders of magnitude more than the dimensions of the smallest element. We show that sedimentation provides a promising approach to manufacture solid materials consisting of well-aligned platelet-shaped particles while being more than 30 000 times thicker than the individual particle. Such sediments contain up to 28 vol% of particles without any further treatment and can be densified to 67 vol% particle fraction by subsequent unidirectional pressing. The degree of orientation of the platelet-shaped particles within the sediments was tracked by high-energy X-ray diffraction measurements. The Hermans orientation parameter, a statistical measure of the quality of alignment, was determined to be 0.63 ± 0.03 already for as-sedimented samples while the standard deviation of the orientation distribution of particles, another measure of average misalignment, was found to be (21.5 ± 1.4)°. After pressing, these values further improved to (0.81 ± 0.01) and (14.6 ± 0.4)°, respectively. Such quality of alignment competes with, if not even exceeds, values reported in the literature.
Subjects
Bioinspired materials
Characterization and analytical techniques
Design, synthesis and processing
Self-assembly
DDC Class
620: Ingenieurwissenschaften
Funding(s)
SFB 986, Teilproject A6 - Herstellung und Charakterisierung hierarchischer, multi-funktionaler Keramik/Metall-Polymer Materialsysteme  
Lizenz
http://rightsstatements.org/vocab/InC/1.0/
Loading...
Thumbnail Image
Name

srep09984.pdf

Size

972.25 KB

Format

Adobe PDF

TUHH
Weiterführende Links
  • Contact
  • Send Feedback
  • Cookie settings
  • Privacy policy
  • Impress
DSpace Software

Built with DSpace-CRIS software - Extension maintained and optimized by 4Science
Design by effective webwork GmbH

  • Deutsche NationalbibliothekDeutsche Nationalbibliothek
  • ORCiD Member OrganizationORCiD Member Organization
  • DataCiteDataCite
  • Re3DataRe3Data
  • OpenDOAROpenDOAR
  • OpenAireOpenAire
  • BASE Bielefeld Academic Search EngineBASE Bielefeld Academic Search Engine
Feedback