Results 31 to 40 of about 873 (194)

Melt Crystallization of Ammonium Dinitramide (ADN) Investigated by Means of X‐ray Diffraction

Chemie Ingenieur Technik, Volume 93, Issue 8, Page 1295-1299, August 2021., 2021
In situ X‐ray diffraction experiments give insight into melt‐crystallization mechanisms of ammonium dinitramide (ADN). The quality of the raw products, parameters of prilling processes, and, e.g., seeding additives shall be used for tailoring properties of ADN prills for applications in solid rocket propellants. Abstract Ammonium dinitramide (ADN) is a
Michael Herrmann, Ulrich Förter‐Barth, Thomas Heintz   +2 more
wiley   +1 more source

Development of bimetallic spinel catalysts for low-temperature decomposition of ammonium dinitramide monopropellants

Defence Technology, 2023
Ammonium dinitramide (ADN) based liquid monopropellants have been identified as environmentally benign substitutes for hydrazine monopropellant. However, new catalysts are to be developed for making ADN monopropellants cold-start capable.
C. Shamjitha, Anuj A. Vargeese
doaj   +1 more source

Advances in phase stabilization techniques of AN using KDN and other chemical compounds for preparing green oxidizers

Defence Technology, 2019
Research and development of green oxidizers and green fuels as a possible replacement for ammonium perchlorate (NH4ClO4, AP) and hydrazine (N2H4) respectively has been increased considerably in the recent years. AP and hydrazine are the oxidizer and fuel
Pratim Kumar
doaj   +1 more source

3,6-bis (2,2,2-trinitroethylnitramino)-1,2,4,5-tetrazine. Structure and energy abilities as a component of solid composite propellants

Defence Technology, 2022
The work addresses to the study of the molecular and crystal structure and properties of a new energy-intensive compound 3,6-bis(2,2,2-trinitroethylnitramino)-1,2,4,5-tetrazine (NBTAT), first obtained by the authors in 2020.
Anatoly G. Korepin, Natalia M. Glushakova, David B. Lempert, Anatoly I. Kazakov, Gennady V. Shilov, Denis V. Korchagin, Vadim M. Volokhov, Elena S. Amosova, Sergey M. Aldoshin   +8 more
doaj   +1 more source

An Optimized & Scaled‐Up Synthetic Procedure for Trinitroethyl Formate TNEF

Propellants, Explosives, Pyrotechnics, Volume 46, Issue 6, Page 895-898, June 2021., 2021
Abstract Previous reports showed, that tris(2,2,2‐trinitroethoxy)methane, also known as tris(2,2,2‐trinitroethyl) orthoformate or trinitroethyl formate (TNEF), exhibits a very high potential for application due to its excellent energetic properties and compatibility with state of the art binder systems for composite propellants. However, TNEF was never
Dominik E. Dosch, Karen Andrade, Thomas M. Klapötke, Burkhard Krumm   +3 more
wiley   +1 more source

Characterisation and thrust measurements from electrolytic decomposition of Ammonium Dinitramide (ADN) based liquid monopropellant FLP-103 in MEMS thrusters [PDF]

, 2017
Although Ammonium Dinitramide (ADN) has been targeted as a potential green monopropellant in future space vehicles, its application potential in Micro-electrical-Mechanical System (MEMS) thrusters or microthrusters have seldom reported in open literature.
Chin, Jitkai, Hung, Yew Mun, Kazi Kabir, Feroz, Rahman, Asad   +3 more
core   +1 more source

Decomposition Pathways of Ammonium Dinitramide (ADN) and its HNO3‐Clusters Elucidated by DFT‐Calculations

Propellants, Explosives, Pyrotechnics, Volume 46, Issue 2, Page 233-244, February 2021., 2021
Abstract Ammonium dinitramide (ADN) may serve as a ‘green’ oxidizer for rocket propellants since it provides chlorine free and minimum signature exhaust gases. However, stability issues and an erratic decomposition behaviour limit its non‐questionable general usability. Nitric acid (HNO3) is a decomposition product of ADN and is known to accelerate the
Johannes Lang, Manfred A. Bohn
wiley   +1 more source

Burning Rate Modifiers to Tailor Combustion of ADN/AN-Based Solid Propellants [PDF]

, 2017
This paper presents a study, carried out in the framework of the H2020 european project GRAIL, on thermal and catalytic decomposition of a solid ADN/AN mixture.
Batonneau, Yann X., Beauchet, Romain, Brahmi, Rachid, Daigurande, Dimitri, El Sayah, Zaki, Kappenstein, Charles, Maggi, Filippo, Sécordel, Xavier, Wingborg, Niklas   +8 more
core   +1 more source

Thermal Behavior and Micro Structure of TKX‐50

Propellants, Explosives, Pyrotechnics, Volume 46, Issue 2, Page 262-266, February 2021., 2021
Abstract The thermal behaviour of TKX‐50 was reinvestigated in an extended temperature range by means of temperature resolved X‐ray diffraction. TKX‐50, synthesized at the Fraunhofer ICT, was identified using Rietveld‐analysis and reference data from the CCDC.
Michael Herrmann, Ulrich Förter‐Barth
wiley   +1 more source

Toxicity Assessment of Energetic Materials by Using the Luminescent Bacteria Inhibition Test

Propellants, Explosives, Pyrotechnics, Volume 46, Issue 1, Page 114-123, January 2021., 2021
Abstract The luminescent bacteria inhibition test using Aliivibrio fischeri is a well‐established method to determine the aquatic toxicity of soluble chemicals. More precisely, the effective concentration (EC50) after 15 and 30 min is determined in this test. The inhibition of natural bioluminescence of these bacteria gives a first idea of the toxicity
Thomas M. Klapötke, Regina Scharf, Jörg Stierstorfer, Cornelia C. Unger   +3 more
wiley   +1 more source