Use of a pulse mass spectrometer to investigate the high-speed processes associated with the high-temperature decomposition of ammonium perchlorate

1970 ◽  
Vol 4 (1) ◽  
pp. 19-22 ◽  
Author(s):  
O. P. Korobeinichev ◽  
V. V. Boldyrev ◽  
Yu. Ya. Karpenko
Keyword(s):  
High Temperature ◽  
Ammonium Perchlorate ◽  
Mass Spectrometer ◽  
High Speed ◽  
Temperature Decomposition

Preparation of Carbon-Coated Nano-Fe, Co Particles and their Effects on the Thermal Decomposition of Ammonium Perchlorate

2010 ◽  
Vol 152-153 ◽  
pp. 309-314 ◽  
Author(s):  
Jun Zhao ◽  
Wei Liang Zhou ◽  
Fu Ming Xu
Keyword(s):  
Thermal Decomposition ◽  
Particle Size ◽  
High Temperature ◽  
Ammonium Perchlorate ◽  
Cation Exchange Resin ◽  
Carbon Matrix ◽  
Decomposition Temperature ◽  
Temperature Decomposition ◽  
Carbon Coated ◽  
Size And Morphology

Nano Metal/C (Metal=Fe, Co) composite materials, in which nano iron and cobalt particles were uniformly distributed in carbon matrix, was prepared by pyrolysis of M-exchanged cation exchange resin(M-PAA). X-ray diffraction (XRD), Transmission Electron Microscope (TEM) results showed the particle size and morphology of nano iron and cobalt in M/C could be controlled by pyrolytic temperature. The particle size of Co and Fe in M/C obtained at 500 was respectively 15-40 nm and 10-35 nm. DTA was employed to test the thermal decomposition of ammonium perchlorate (AP) in the M/C and AP mixture. Results indicated the decomposition temperature at high-temperature decomposition of AP was lowered with the addition of amount of M/C-500, and the high temperature decomposition peaks of AP respectively lowered as much as 145.2°Cand 68.3°C with adding amount of 5% of Co/C and Fe/C obtained at 500 . The high and low temperature decomposition peaks of AP overlapped with addition of Co/C.

High-Temperature Decomposition of Ammonium Perchlorate-Polystyr ene-Catalyst Mixtures

AIAA Journal ◽  
1975 ◽  
Vol 13 (5) ◽  
pp. 628-633 ◽  
Author(s):  
O. P. KOKOBEINICHEV ◽  
G. I. ANISIFOROV ◽  
A. G. TERESCHENKO
Keyword(s):  
High Temperature ◽  
Ammonium Perchlorate ◽  
Temperature Decomposition

Noncrystalline structure of Ni–P nanoparticles prepared by liquid pulse discharge

2015 ◽  
Vol 22 (2) ◽  
pp. 376-384 ◽  
Author(s):  
Yuanyuan Tan ◽  
Hongying Yu ◽  
Zhonghua Wu ◽  
Bin Yang ◽  
Yu Gong ◽  
...  
Keyword(s):  
Thermal Decomposition ◽  
High Temperature ◽  
Ammonium Perchlorate ◽  
Pulse Discharge ◽  
Average Diameter ◽  
Nickel Phosphide ◽  
Atomic Structures ◽  
Temperature Decomposition ◽  
Cross Linkage ◽  
Shed Light

Noncrystalline nickel phosphide (Ni–P) nanoparticles have drawn great attention due to their high potential as catalysts. However, the structure of noncrystalline Ni–P nanoparticles is still unknown, which may shed light on explaining the catalysis mechanism of the Ni–P nanoparticles. In this paper, noncrystalline Ni–P nanoparticles were synthesized. Their morphology, particle size, element contents, local atomic structures, as well as the catalysis in the thermal decomposition of ammonium perchlorate were studied. The results demonstrate that the as-prepared Ni–P nanoparticles are spherical with an average diameter of about 13.5 nm. The Ni and P contents are, respectively, 78.15% and 21.85%. The noncrystalline nature of the as-prepared Ni–P nanoparticles can be attributed to cross-linkage between P-doping f.c.c.-like Ni centers and Ni3P-like P centers. The locally ordered Ni centers and P centers are the nuclei sites, which can explain well the origin of initial nuclei to form the crystalline phases after high-temperature annealing. The starting temperature of high-temperature decomposition of ammonium perchlorate was found having a significant decrease in the presence of the noncrystalline Ni–P nanoparticles. Therefore, the as-prepared noncrystalline Ni–P nanoparticles can be used as a potential catalyst in the thermal decomposition of ammonium perchlorate.

ALX ALLOY

Alloy Digest ◽  
1963 ◽  
Vol 12 (1) ◽  
Keyword(s):  
Heat Treatment ◽  
Corrosion Resistance ◽  
High Temperature ◽  
Physical Properties ◽  
Tensile Properties ◽  
High Speed ◽  
Heat Treating ◽  
Temperature Performance ◽  
Cobalt Base

Abstract ALX is a composition of nonferrous materials with a cobalt base containing chromium, tungsten and carbon. This alloy is commonly supplied in the cast-to-shape form, having an as-cast hardness of Rockwell C60-62 and requiring no further heat treatment. ALX is also supplied as cast tool bit material and is useful where conventional high-speed steels or carbides do not function effectively. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on high temperature performance and corrosion resistance as well as casting, forming, heat treating, and machining. Filing Code: Co-35. Producer or source: Allegheny Ludlum Corporation.

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