Beta
324720

Enhancements of Slow-propagation Tungsten-‎Based Delay Compositions for Blasting and ‎Propulsion Systems

Article

Last updated: 05 Jan 2025

Subjects

-

Tags

Applied Chemistry

Abstract

Applications for controlled energetic timed events in both the military and civilian sectors highlight the critical function of delay compositions. The widespread usage of tungsten delay systems in space industry and other components motivates academic research aimed at enhancing the performance and reliability of these materials. Different delay compositions are created for this purpose based on varying amounts of tungsten (W) fuel modified with graphite (C). The major components of delay systems included polyvinyl acetate (PVA), BaCrO4, KClO4, and a graphite weight fraction that ranged from 2% to 10%. The compositions are made by combining, granulating, and then loading them into aluminum tubes. This study illustrates the impact of 2% to 10% graphite fuel added to tungsten-based delay composition. The heat of production and density for each constituent were computed and presented as part of thermochemical calculations using the ICT code to forecast the performance of the delay element. Schaffler Company's ignition static test for the delay element using the central testing unit (CTU) revealed an improvement in burning rate of 9% to 47%. Utilizing digital visual imaging systems, the burning behavior is observed, and SEM apparatuses are used to analyze changes in the composition's outer surface. The sensitivity tests (impact, friction, ignition, electrostatic discharge (ESD), and thermal analysis test utilizing DSC and TAM apparatus) are used to characterize the prepared compositions. All of the results from the evaluated delay compositions guarantee safe handling, production, transportation, and storage.

DOI

10.21608/njbs.2023.324720

Keywords

Tungsten delay, graphite, sensitivity test, Thermal analysis, ICT code.‎

Authors

First Name

ahmed

Last Name

hawass

MiddleName

-

Affiliation

Cairo Higher Institute for Engineering, Computer Science and Management.‎

Email

hawass2000@yahoo.com

City

Cairo

Orcid

-

First Name

Mohamed

Last Name

Elwany

MiddleName

M.

Affiliation

Department of Chemical Eng., Cairo University, Giza, Egypt‎

Email

-

City

-

Orcid

-

First Name

Sahar

Last Name

Elmarsfy‎

MiddleName

-

Affiliation

Department of Chemical Eng., Cairo University, Giza, Egypt‎

Email

-

City

-

Orcid

-

First Name

Ehab

Last Name

Abadir

MiddleName

Fouad

Affiliation

Department of Chemical Eng., Cairo University, Giza, Egypt‎

Email

-

City

-

Orcid

-

Volume

3

Article Issue

1

Related Issue

44182

Issue Date

2023-10-01

Receive Date

2023-11-05

Publish Date

2023-10-01

Page Start

24

Page End

38

Print ISSN

2805-2323

Online ISSN

2805-2331

Link

https://njbs.journals.ekb.eg/article_324720.html

Detail API

https://njbs.journals.ekb.eg/service?article_code=324720

Order

324,720

Type

Original Article

Type Code

2,143

Publication Type

Journal

Publication Title

Nile Journal of Basic Science

Publication Link

https://njbs.journals.ekb.eg/

MainTitle

Enhancements of Slow-propagation Tungsten-‎Based Delay Compositions for Blasting and ‎Propulsion Systems

Details

Type

Article

Created At

30 Dec 2024