The properties of Nano-sized Aluminum as Energetic Material are widely known among the scientific community. In this work we want to discuss the possibility of developing new categories of HEM in the form of Bi-metal Nanopowders produced by EEIW of Al- Ni,Al-Cu, Al-Fe, comparing the results with a baseline of Alex. New typologies of HEM used as propellant in solid rockets are requested due to the high reactivity of the Alex used today which represent danger for the workers of the sector. The first part of the characterization of the material was carried out with the use of SEM-EDS, the PSD does not present particular differences with the reference. We finalized the characterization performing a TG-DSC analysis highlighting the differences in the reaction with our reference.
Le proprietà del nano-alluminio, usato come High Energy Material (HEM), sono largamente note alla comunità scientifica. In questo lavoro vogliamo discutere circa la possibilità di sviluppare nuove categorie di HEM nella forma di nanopolveri bimetalliche. Polveri prodotte utilizzando l’innovativa tecnica dell’ Electrical Explosion of Intertwined Wires (EEIW) di Al-Ni, Al-Cu, Al- Fe, comparando i risultati ottenuti con quelli del material di riferimento: Aluminum produced by Wire Explosion (Alex). Nuove tipologie di HEM usate come propellenti nei razzi a propellente solido sono richieste a causa dell’alta reattività dell’ Alex usato oggi, il quale rappresenta un pericolo per il lavoratori del settore. La prima parte della caratterizzazione del materiale é stata sviluppata tramite un’analisi Scanning Electron Mictoscopy - Energy Dispersive Spec- trometry (SEM-EDS), la Particle Size Distribution (PSD) non presenta grandi differenze dal riferimento di Alex. L’analisi é stata infine conclusa con una Thermal Gravimetric Analysis - Differential Scanning Calorimetry (TG-DSC), sottolineando le differenze tra i materiali studiati e il riferimento di Alex
Bimetal nanopowders as high energetic materials for propulsion applications
Di Pietrantonio, Vittorio
2019/2020
Abstract
The properties of Nano-sized Aluminum as Energetic Material are widely known among the scientific community. In this work we want to discuss the possibility of developing new categories of HEM in the form of Bi-metal Nanopowders produced by EEIW of Al- Ni,Al-Cu, Al-Fe, comparing the results with a baseline of Alex. New typologies of HEM used as propellant in solid rockets are requested due to the high reactivity of the Alex used today which represent danger for the workers of the sector. The first part of the characterization of the material was carried out with the use of SEM-EDS, the PSD does not present particular differences with the reference. We finalized the characterization performing a TG-DSC analysis highlighting the differences in the reaction with our reference.File | Dimensione | Formato | |
---|---|---|---|
Thesis_Vittorio_Di_Pietrantonio.pdf
non accessibile
Descrizione: Tesi Vittorio Di Pietrantonio
Dimensione
12.56 MB
Formato
Adobe PDF
|
12.56 MB | Adobe PDF | Visualizza/Apri |
I documenti in POLITesi sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
https://hdl.handle.net/10589/169366