Burning rate of composite systems as a function of the particle size of the components at different fuel-oxidizer ratios

1969 ◽  
Vol 3 (3) ◽  
pp. 210-212 ◽  
Author(s):  
Yu. A. Kondrashkov ◽  
N. N. Bakhman ◽  
A. F. Belyaev
Keyword(s):  
Particle Size ◽  
Burning Rate ◽  
Composite Systems

Relation between the flameless burning rate of condensed mixtures and oxidizer particle size

1969 ◽  
Vol 5 (4) ◽  
pp. 395-397
Author(s):  
S. S. Novikov ◽  
P. F. Pokhil ◽  
O. P. Rysakova-Romashkan
Keyword(s):  
Particle Size ◽  
Burning Rate ◽  
Oxidizer Particle

MECHANICAL PROPERTIES OF POLYMER COMPOSITES BASED ON BIOPARTICLES (JATROPHA CURCAS L.)

2015 ◽  
Vol 76 (3) ◽  
Author(s):  
Petr VALÁŠEK
Keyword(s):  
Mechanical Properties ◽  
Particle Size ◽  
Polymer Composites ◽  
Renewable Resources ◽  
Jatropha Curcas ◽  
Epoxy Resins ◽  
Polymer Materials ◽  
Jatropha Curcas L ◽  
Composite Systems ◽  
Organic Particles

Composites are materials which synergically combine properties of each phase – matrix and filler. Polymer materials can be used as matrix while inorganic and organic particles can be used as fillers. Composite systems based on renewable resources can be designed as an interesting material for engineering. This paper describes on the tribological and other mechanical properties of biocomposites based on polymer resins and microparticles - seed cakes, which were obtained from seeds of the plant Jatropha Curcas L. during pressing. The particle size obtained was 573 µm.The results confirmed that the epoxy and polyurethane resins were capable of forming which corresponds to the interaction with the organic particles prepared from the seeds of Jatropha Curcas L. The presence of particles however, changed the mechanical properties of the resins. In the case of epoxy resins and polyurethane (Sika Force 7723), the hardness according to Shore D identically decreased with a maximum of 1.9. Abrasion resistance decreased due to the presence of particles of 0.0393 cm3 for Glue Epox Rapid, 0.0449 cm3 for Epoxy 1200/324 and 0.0567 cm3 for Sika Force 7723.

Preparation of A12O3-ZrO2 Composites by Adjustment of Surface Chemical Behavior

1986 ◽  
Vol 73 ◽  
Author(s):  
S. Baik ◽  
A. Bleier ◽  
P. F. Becher
Keyword(s):  
Particle Size ◽  
Electrolyte Concentration ◽  
Surface Chemical ◽  
Green Density ◽  
Chemical Behavior ◽  
Composite Systems ◽  
Gravitational Forces ◽  
Ph Conditions ◽  
Differential Sedimentation ◽  
Optimum Balance

ABSTRACTAqueous colloidal routes for processing binary suspensions containing Al 2 O 3 and ZrO2 were designed and tested in order to achieve homogeneous microstructures. Effects of particle size and size ratio of each component, pH, and electrolyte concentration of composite suspensions on sedimentation, green density, and ZrO2 distribution in sintered microstructures were examined. The pH conditions for inhibiting differential sedimentation without impairing green density were optimized. Overall suspension and coagulation behavior for these composite systems were explained using the DLVO approach. Optimum balance of colloidal and gravitational forces occurred when the secondary minimum heterocoagulation was maximized.

Influence of Particle Size and Temperature on the Burning Rate of Small Caliber Ball Powder

2021 ◽  
Author(s):  
John J. Ritter ◽  
Catalin‐Florin Petre ◽  
Pascal Beland ◽  
Charles Nicole
Keyword(s):  
Particle Size ◽  
Burning Rate

scholarly journals Regulation of the burning rate of a pyrotechnic composition based on magnesium and sodium nitrate additives of different type and particle size

2016 ◽  
Author(s):  
С.В. Шибанов ◽  
◽  
Д.А. Ягодников ◽  
В.И. Сарабьев ◽  
Г.А. Данилова ◽  
...  
Keyword(s):  
Particle Size ◽  
Burning Rate ◽  
Sodium Nitrate ◽  
Pyrotechnic Composition

Influence of Solid Particle Size on Burning and Mechanical Properties of AP/Al/HTPB Composites

2012 ◽  
Vol 510-511 ◽  
pp. 500-506 ◽  
Author(s):  
Z. Mehmood ◽  
Mohammad Bilal Khan ◽  
T. Abbas ◽  
Nasir M. Ahmad
Keyword(s):  
Mechanical Properties ◽  
Particle Size ◽  
Tensile Strength ◽  
Particle Size Distribution ◽  
Burning Rate ◽  
Size Distribution ◽  
Maximum Stress ◽  
Aluminum Particles ◽  
Tensile Tester ◽  
Coarse To Fine

Mechanical and ballistics properties are a measure of the performance of AP/Al/HTPB composites. These properties are influenced by the characteristics of inorganic crystalline oxidizer and aluminum particles. This paper reports the effect of the particle size distribution on mechanical and burning properties of 87% solid loaded composites. Composites were fabricated by mixing the ingredients in the planetary mixer followed by curing at an elevated temperature for several days. Multimodal particle size distribution was used in which coarse to fine ratio was varied proportionally. The burning rate was measured using strand burner at various pressures. Mechanical properties of the composites were investigated by using tensile tester. Results revealed that tensile strength and the burning rate increased while elongation at maximum stress decreased with the increase in the quantity of fines oxidizer. Whereas the variation in the particle size of the aluminum do not have any pronounced effect on the burning as well as mechanical properties of the composite.

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