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Self-propagating combustion synthesis of nanostructured particles

 
: Imiolek, Andreas; Weiser, Volker; Kelzenberg, Stefan; Roth, Evelin; Lity, André

:
Fulltext urn:nbn:de:0011-n-3498641 (747 KByte PDF)
MD5 Fingerprint: 9aca74bec4b36834ecface4f83884bab
Created on: 31.7.2015


Fraunhofer-Institut für Chemische Technologie -ICT-, Pfinztal:
Energetic materials - performance, safety and system applications : 46th International Annual Conference of the Fraunhofer ICT, June 23 - 26, 2015, Karlsruhe, Germany
Pfinztal: Fraunhofer ICT, 2015
ISSN: 2194-4903
pp.120.1-120.10
Fraunhofer-Institut für Chemische Technologie (International Annual Conference) <46, 2015, Karlsruhe>
English
Conference Paper, Electronic Publication
Fraunhofer ICT ()

Abstract
Apart from the comprehensive investigations of nano-aluminium particle, silicon and boron are also suitable for nano-energetic compositions, but less investigated.
Silicon and boron in combination with different oxidizers yield in efficient composite materials with optimized burning properties. The great reactivity of nanoscale particles is mainly based on their high surface-to-volume-ratio. Porous micrometre-scaled particles with high surface areas should feature similar properties compared to nanoscale particles. Advantages are a much better handling and a distinct lower hazard classification.
In this work, silicon and boron powder with high surface area were synthesized by self-propagating combustion synthesis (SPCS). The characterization of both products (Si, B) was performed using different methods (Raman spectroscopy, XRD, SEM). After washing with hydrochloric acid (10% HCl), the received combustion products showed a high-purity silicon or amorphous boron with a porous sponge-like structure. The particle size ranged between 30 μm – 100 μm.

: http://publica.fraunhofer.de/documents/N-349864.html