Enhancing Delay Time in Pyro Devices: A Comparative Study on the Effect of Alloy‐Fuel in Binary Pyro Delay System

Propellants Explosives Pyrotechnics 2026 Open access

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Authors: Narendra D. Mhaske, Paromita Saha Chowdhury, Mukesh Jain, Shrikant D. Ghogale, Pawan Kumar Khanna, Shaibal Banerjee
DOI: 10.1002/prep.70112
Cited by: 0
References: 11

Abstract

ABSTRACT Pyrotechnic delay is a device consisting of fuel, oxidizer, and binder that provides a time interval between two successive events involving initiation and output. This article extensively studies the inverse burning rate (IBR) effect on binary fuel‐based pyrotechnic delays. Subsequently, Zr–Ni alloy‐based binary compositions have been reported. It was observed that Zr–Ni alloy‐based binary composition exhibited superior burning rate, higher density, and lower cal‐val as compared to traditional boron‐based delay composition. Specifically, the Zr–Ni alloy fuel enhanced the delay time by 2.33 times as compared to the B/BaCrO 4 /NC binary delay composition in a fixed column length.

Fields of Study & Subjects

Energetic Materials and Combustion Bladed Disk Vibration Dynamics Intermetallics and Advanced Alloy Properties

Publication details

Journal / source
Propellants Explosives Pyrotechnics
Volume
51
Issue
3
Pages
474–492
Publication date
6 January 2026
Language
EN