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Publisher DOI: 10.1039/c9na00222g
Title: Iron oxide-based nanostructured ceramics with tailored magnetic and mechanical properties: Development of mechanically robust, bulk superparamagnetic materials
Language: English
Authors: Giuntini, Diletta 
Torresani, Elisa 
Chan, Kyle T. 
Blankenburg, Malte 
Saviot, Lucien 
Bor, Büsra 
Domènech Garcia, Berta 
Shachar, Meir 
Müller, Martin 
Olevsky, Eugene A. 
Garay, Javier E. 
Schneider, Gerold A. 
Issue Date: 2-Jul-2019
Publisher: Royal Society of Chemistry
Source: Nanoscale Advances 8 (1): 3139-3150 (2019)
Journal: Nanoscale advances 
Abstract (english): 
Nanostructured iron-oxide based materials with tailored mechanical and magnetic behavior are produced in bulk form. By applying ultra-fast heating routines via spark plasma sintering (SPS) to supercrystalline pellets, materials with an enhanced combination of elastic modulus, hardness and saturation magnetization are achieved. Supercrystallinity-namely the arrangement of the constituent nanoparticles into periodic structures-is achieved through self-assembly of the organically-functionalized iron oxide nanoparticles. The optimization of the following SPS regime allows the control of organics' removal, necking, iron oxide phase transformations and nano-grain size retention, and thus the fine-tuning of both mechanical properties and magnetic response, up until the production of bulk mm-size superparamagnetic materials.
DOI: 10.15480/882.2427
ISSN: 2516-0230
Institute: Keramische Hochleistungswerkstoffe M-9 
Document Type: Article
More Funding information: Deusche Forschungsgemeinschaft (DFG)
Project: SFB 986: Teilprojekt A6 - Herstellung und Charakterisierung hierarchischer, multi-funktionaler Keramik/Metall-Polymer Materialsysteme 
SFB 986: Teilprojekt Z2 
License: CC BY-NC 3.0 (Attribution-NonCommercial) CC BY-NC 3.0 (Attribution-NonCommercial)
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