Files and links (1)
Published, Version of Record (VoR)Open Access (License Unspecified), Open
Journal article
Preparation and Reactivity of Gasless Nanostructured Energetic Materials
JOVE-JOURNAL OF VISUALIZED EXPERIMENTS, v 2015(98), pp e52624-e52624
01 Apr 2015
PMID: 25868065
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
High-Energy Ball Milling (HEBM) is a ball milling process where a powder mixture placed in the ball mill is subjected to high-energy collisions from the balls. Among other applications, it is a versatile technique that allows for effective preparation of gasless reactive nanostructured materials with high energy density per volume (Ni+Al, Ta+C, Ti+C). The structural transformations of reactive media, which take place during HEBM, define the reaction mechanism in the produced energetic composites. Varying the processing conditions permits fine tuning of the milling-induced microstructures of the fabricated composite particles. In turn, the reactivity, i.e., self-ignition temperature, ignition delay time, as well as reaction kinetics, of high energy density materials depends on its microstructure. Analysis of the milling-induced microstructures suggests that the formation of fresh oxygen-free intimate high surface area contacts between the reagents is responsible for the enhancement of their reactivity. This manifests itself in a reduction of ignition temperature and delay time, an increased rate of chemical reaction, and an overall decrease of the effective activation energy of the reaction. The protocol provides a detailed description for the preparation of reactive nanocomposites with tailored microstructure using short-term HEBM method. It also describes a high-speed thermal imaging technique to determine the ignition/combustion characteristics of the energetic materials. The protocol can be adapted to preparation and characterization of a variety of nanostructured energetic composites.
Metrics
Details
- Title
- Preparation and Reactivity of Gasless Nanostructured Energetic Materials
- Creators
- Khachatur V. Manukyan - University of Notre DameChristopher E. Shuck - University of Notre DameAlexander S. Rogachev - National University of Science and TechnologyAlexander S. Mukasyan - University of Notre Dame
- Publication Details
- JOVE-JOURNAL OF VISUALIZED EXPERIMENTS, v 2015(98), pp e52624-e52624
- Publisher
- Journal Of Visualized Experiments
- Number of pages
- 11
- Grant note
- K2-2014-001 / Ministry of Education and Science and Education of the Russian Federation HDTRA1-10-1-0119 / Defense Threat Reduction Agency (DTRA); United States Department of Defense; Defense Threat Reduction Agency DE-NA0002377 / Department of Energy, National Nuclear Security Administration; National Nuclear Security Administration; United States Department of Energy (DOE)
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Materials Science and Engineering
- Web of Science ID
- WOS:000361534800040
- Scopus ID
- 2-s2.0-84941248304
- Other Identifier
- 991019296812604721
UN Sustainable Development Goals (SDGs)
This publication has contributed to the advancement of the following goals:
InCites Highlights
Data related to this publication, from InCites Benchmarking & Analytics tool:
- Collaboration types
- International collaboration
- Web of Science research areas
- Multidisciplinary Sciences