Your browser doesn't support javascript.
loading
An updated technique to obtain explosive kinetics data on microsecond timescales.
Tasker, Douglas G; Skrabacz, Daniel A; Campbell, Maria C; Spielvogel, Kyle D; Morinec, Allen G; McLaughlin, Aidan B; Houlton, Robert; Tucker, Robert; Moore, Jeremiah D; Cawkwell, M J; Manner, Virginia W.
Afiliación
  • Tasker DG; Detonation Science and Technology: Q-6, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA.
  • Skrabacz DA; Detonation Science and Technology: Q-6, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA.
  • Campbell MC; High Explosives Science and Technology: Q-5, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA.
  • Spielvogel KD; High Explosives Science and Technology: Q-5, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA.
  • Morinec AG; Detonation Science and Technology: Q-6, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA.
  • McLaughlin AB; Detonation Science and Technology: Q-6, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA.
  • Houlton R; High Explosives Science and Technology: Q-5, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA.
  • Tucker R; High Explosives Science and Technology: Q-5, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA.
  • Moore JD; High Explosives Science and Technology: Q-5, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA.
  • Cawkwell MJ; Theoretical Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA.
  • Manner VW; High Explosives Science and Technology: Q-5, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA.
Rev Sci Instrum ; 95(7)2024 Jul 01.
Article en En | MEDLINE | ID: mdl-39037303
ABSTRACT
There are few techniques available for chemists to obtain time-to-explosion data with known temperature inputs at the early stages of the design and synthesis of new explosives. In the 1960s, a technique was developed to rapidly heat milligram-quantities of confined explosives to ∼1000 K on microsecond timescales. Wenograd [Trans. Faraday Soc. 57, 1612 (1961)] loaded explosives inside stainless steel hypodermic needles, connected them to a fireset and rapidly discharged a capacitor through the steel. He obtained the temperature by measuring the needle resistance in a Wheatstone bridge arrangement and the time to explosion from a needle rupture. However, owing to the narrow-gauge needles used in the original research, the experiment was only possible with melt-castable explosives; it was never replicated, and modern diagnostics are now available with advances beyond the 1960s. Here, we report the development of the High Explosives Initiation Time (HEIT) test, which utilizes a 250 J pulsed power system to heat the needles. This work extends the Wenograd approach by using optical diagnostics, computational modeling, and advanced techniques to measure needle resistance and needle rupture. Preliminary rate information for pentaerythritol tetranitrate (PETN) will be presented.
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Rev Sci Instrum Año: 2024 Tipo del documento: Article País de afiliación: Estados Unidos Pais de publicación: Estados Unidos
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Rev Sci Instrum Año: 2024 Tipo del documento: Article País de afiliación: Estados Unidos Pais de publicación: Estados Unidos