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1. |
A Simplified Oxidative Preparation of Aromatic Nitro Compounds |
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Propellants, Explosives, Pyrotechnics,
Volume 1,
Issue 5‐6,
1976,
Page 89-90
E. E. Gilbert,
J. R. Leccacorvi,
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摘要:
AbstractTwelve nitro‐ or chloroaromatic amines were oxidized to the nitro analogues by a simplified procedure. Limitations of the method are indicate
ISSN:0721-3115
DOI:10.1002/prep.19760010502
出版商:WILEY‐VCH Verlag GmbH
年代:1976
数据来源: WILEY
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2. |
Determination of the Lifetimes of Gun Propellants using thin‐layer chromatography |
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Propellants, Explosives, Pyrotechnics,
Volume 1,
Issue 5‐6,
1976,
Page 90-97
F. Volk,
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摘要:
AbstractA thin‐layer chromatographic method was developed in connection with the determination of the safe lifetimes of gun propellants. This method enabled the numerous stabilizer reaction products of diphenylamine and ethylcentralite, which were formed on storage, to be qualitatively analysed.Since a correlation could be established between the temperature and the decomposition or formation of certain of these reaction products, it became possible to estimate the time of onset of autocatalytic decomposition of powders and solid propellants from an analysis of the material at much earlier time
ISSN:0721-3115
DOI:10.1002/prep.19760010503
出版商:WILEY‐VCH Verlag GmbH
年代:1976
数据来源: WILEY
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3. |
Detonation Velocity of PETN in Small confined cylindrical charges |
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Propellants, Explosives, Pyrotechnics,
Volume 1,
Issue 5‐6,
1976,
Page 97-100
R. H. Dinegar,
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摘要:
AbstractSteady state detonation velocities have been measured in small brass‐confined pressings of PETN. These velocities were found to vary linearly with the reciprocal of the charge diameter and directly with the compact density. For a pressing density of 950 kg/m3the velocity at infinite diameter was calculated to be 5.27 km/s (50.02 kmk) and the Eyring‐type „reaction‐zone length”︁ 0.54 mm
ISSN:0721-3115
DOI:10.1002/prep.19760010504
出版商:WILEY‐VCH Verlag GmbH
年代:1976
数据来源: WILEY
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4. |
Chemistry of Titanium, Zirconium and Thorium Picramates |
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Propellants, Explosives, Pyrotechnics,
Volume 1,
Issue 5‐6,
1976,
Page 101-103
R. S. Srivastava,
S. P. Agrawal,
H. N. Bhargava,
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摘要:
AbstractPicramates of titanium, zirconium and thorium are prepared by treating the aqueous sulphate, chloride and nitrate solutions with sodium picramate. Micro‐analysis, colorimetry and spectrophoto‐ metry are used to establish the compositions (metal : ligand ratio) of these picramates as 1 : 2 (for titanium and zirconium) and 1 : 4 (for thorium). IR studies indicate H2N → Me coordination (where Me denotes the metal). A number of explosive properties of these picramates point to the fact that the zirconium picramate is thermally more stable than the picramates of titanium and th
ISSN:0721-3115
DOI:10.1002/prep.19760010505
出版商:WILEY‐VCH Verlag GmbH
年代:1976
数据来源: WILEY
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5. |
The Use of Lead in Explosive Cladding |
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Propellants, Explosives, Pyrotechnics,
Volume 1,
Issue 5‐6,
1976,
Page 103-107
R. Prümmer,
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摘要:
AbstractLead has for a long time not been employed in explosive cladding because its velocity of sound (c = 1250 m/s) is very low compared to the detonation velocities of conventional explosives (vD ≈ 3000 m/s). I t is shown that by using a carbonite explosive, which has a detonation velocity of less than 1500 m/s, useful explosive cladding can be achieved. The relationship between quantity of explosive and cladding parameters such as angle of collision and plate velocity vp is determined. The interface between lead‐copper and lead‐steel claddings is wave‐like. The wavelength depends on the angle of collision and is larger for lead‐copper claddings than for those between lead
ISSN:0721-3115
DOI:10.1002/prep.19760010506
出版商:WILEY‐VCH Verlag GmbH
年代:1976
数据来源: WILEY
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6. |
Thermal Decomposition of Hydrazinium Diperchlorate |
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Propellants, Explosives, Pyrotechnics,
Volume 1,
Issue 5‐6,
1976,
Page 107-111
V. R. Pai Verneker,
A. N. Sharma,
S. R. Jain,
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摘要:
AbstractThe mechanism of the thermal decomposition of hydrazinium diperchlorate (HP‐2) has been investigated in the temperature range 100–200°C. l he decomposition can be represented by the chemical equations:\documentclass{article}\pagestyle{empty}\begin{document}$$\begin{array}{l}{\rm Below 140}^{\rm \circ} {\rm C}\,\,\,\,\,\,\,\,\,\,\,\,\,{\rm N}_{\rm 2} {\rm H}_{\rm 6} {\rm (ClO}_{\rm 4} {\rm)}_{\rm 2} \to {\rm N}_{\rm 2} {\rm H}_{\rm 5} {\rm ClO}_{\rm 4} {\rm + HClO}_{\rm 4}\\{\rm Above 140}^{\rm \circ} {\rm C}\,\,\,\,\,\,\,\,\,\,\,\,\,{\rm 24 N}_{\rm 2} {\rm H}_{\rm 6} {\rm (ClO}_{\rm 4} {\rm)}_{\rm 2} \to 8{\rm NH}_{\rm 4} {\rm ClO}_{\rm 4} {\rm + 42 H}_{\rm 2} {\rm O + 26 HClO}_{\rm 4} {\rm + 14 N}_{\rm 2} {\rm O + 7 Cl}_{\rm 2} {\rm + 6\,N}_{\rm 2} {\rm + H}_{\rm 2} \\\end{array}$$\end{document}The solid state decomposition up to 180°C ensues with an activation energy of 23 kcal/mole whereas above 180°C in the molten state the activation energy is 35 kca
ISSN:0721-3115
DOI:10.1002/prep.19760010507
出版商:WILEY‐VCH Verlag GmbH
年代:1976
数据来源: WILEY
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7. |
The Initiation of Tetryl by Small Charges of PETN |
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Propellants, Explosives, Pyrotechnics,
Volume 1,
Issue 5‐6,
1976,
Page 111-113
R. H. Dinegar,
M. S. Millican,
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摘要:
AbstractExplosion times of PETN pressings and PETN/tetryl assemblies have been measured as a function of the length and density of the PETN donor charge and the density of the tetryl acceptor. A charge length of about 3.5 mm is necessary for the PETN explosion wave to reach steady‐state velocity for the densities studied. The initiation of the tetryl pellet is related to the detonation velocity (and presumably peak pressure) as well as the pressure‐distance profile generated in the PETN explosion wave. Higher‐density tetryl charges appear to be more sensitive than
ISSN:0721-3115
DOI:10.1002/prep.19760010508
出版商:WILEY‐VCH Verlag GmbH
年代:1976
数据来源: WILEY
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8. |
Some theoretical considerations on Improving the Internal Ballistic Performance of Guns |
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Propellants, Explosives, Pyrotechnics,
Volume 1,
Issue 5‐6,
1976,
Page 114-119
E. Melchior,
W. Witt,
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摘要:
AbstractAn improvement in internal ballistic performance is understood to mean an increase in muzzle velocity for the same weight of projectile and the same peak pressure. Using a thermodynamic model of the internal ballistics a possible method of achieving a significant improvement in performance is demonstrated based on optimizing the properties of the propellant in a charge of conventional design. An example of the application of the theoretical results is discussed.
ISSN:0721-3115
DOI:10.1002/prep.19760010509
出版商:WILEY‐VCH Verlag GmbH
年代:1976
数据来源: WILEY
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9. |
Forthcoming Meetings |
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Propellants, Explosives, Pyrotechnics,
Volume 1,
Issue 5‐6,
1976,
Page 119-120
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ISSN:0721-3115
DOI:10.1002/prep.19760010510
出版商:WILEY‐VCH Verlag GmbH
年代:1976
数据来源: WILEY
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10. |
Masthead |
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Propellants, Explosives, Pyrotechnics,
Volume 1,
Issue 5‐6,
1976,
Page -
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PDF (48KB)
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ISSN:0721-3115
DOI:10.1002/prep.19760010501
出版商:WILEY‐VCH Verlag GmbH
年代:1976
数据来源: WILEY
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