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International Journal of Energetic Materials and Chemical Propulsion

Published 6 issues per year

ISSN Print: 2150-766X

ISSN Online: 2150-7678

The Impact Factor measures the average number of citations received in a particular year by papers published in the journal during the two preceding years. 2017 Journal Citation Reports (Clarivate Analytics, 2018) IF: 0.7 To calculate the five year Impact Factor, citations are counted in 2017 to the previous five years and divided by the source items published in the previous five years. 2017 Journal Citation Reports (Clarivate Analytics, 2018) 5-Year IF: 0.7 The Immediacy Index is the average number of times an article is cited in the year it is published. The journal Immediacy Index indicates how quickly articles in a journal are cited. Immediacy Index: 0.1 The Eigenfactor score, developed by Jevin West and Carl Bergstrom at the University of Washington, is a rating of the total importance of a scientific journal. Journals are rated according to the number of incoming citations, with citations from highly ranked journals weighted to make a larger contribution to the eigenfactor than those from poorly ranked journals. Eigenfactor: 0.00016 The Journal Citation Indicator (JCI) is a single measurement of the field-normalized citation impact of journals in the Web of Science Core Collection across disciplines. The key words here are that the metric is normalized and cross-disciplinary. JCI: 0.18 SJR: 0.313 SNIP: 0.6 CiteScore™:: 1.6 H-Index: 16

Indexed in

EXTRUSION TECHNIQUE FOR EXTRUDED COMPOSITE PROPELLANT GRAIN

Volume 15, Issue 1, 2016, pp. 25-33
DOI: 10.1615/IntJEnergeticMaterialsChemProp.2015013743
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ABSTRACT

Extrusion techniques for double-base propellant are well established and are operational worldwide. Indian ordnance factories have facilities to extrude propellants of diameters ranging from 10 to 160 mm, but the extruded composite propellant (ECP) is an entirely new thrust area in the field of composite propellant. The research and development work on ECP is being carried out at the High Energy Materials Research Laboratory (HEMRL). These are based on high-density thermoplastic elastomers (TPEs) used as propellant binder with ammonium perchlorate (AP) as the oxidizer and aluminum (Al) as metallic fuel. This class of propellant not only provides higher energy, but also yields higher density impulses. It can also take up higher solid loadings (up to 90%) and has good dimensional stability. The extrusion of ECP with large diameters (Ø 120 mm) has not been reported in literature so far. This paper presents the establishment of an extrusion technique for ECP grains with large diameters, which is the first of its kind. At the HEMRL, Viton-based ECP has been developed, characterized, and evaluated. Due to its higher dimensional stability and higher density of the order of 1.97 g/cc, the developed extruded composite propellant obtained by our extrusion technique can have various applications, such as for gas generators, thrusters, and auxiliary motors of advanced missiles.

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