Effect of crystallization parameters and presence of surfactant on ammonium perchlorate crystal characteristics

Lakshmi, V. M.; Chakravarthy, Satyanarayanan R.; Rajendran, A. G.; Thomas, C. R.

doi:10.1080/02726351.2015.1076102

Cited by 15 publications

(12 citation statements)

References 21 publications

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“…As mentioned in anti-solvent research [7], with respect to performed design, the value of mixing has a direct relation with pressure. In a research performed by Lakshmi et al, the value of mixing has been measured by solution stirring to produce AP [43,44]. The influence of mixing rate on crystal size in rapid cooling method was obtained 0.1 μm/rpm.…”

Section: Influence Of Pressure Variations On the Crystal Sizementioning

confidence: 99%

Thermo‐Kinetic Investigation of the Preparation of Micronized Ammonium Perchlorate Particles by Using Rapid Cooling Crystallization Method

Zinab

Hosseini

Tavangar

et al. 2021

Propellants Explo Pyrotec

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Production of micronized ammonium perchlorate particles (AP) (< 25 μm) has a great importance in the composite solid propellant industry. In the present study, an attempt was made to consider thermo-kinetic preparation of AP particles by using simple McCabe model in a cooling crystallization system. For this reason, an experimental design based on temperature, pressure, time, and concentration was used. Temperature in the range of 323-343 K, pressure in the range of 3�10 5 -18�10 5 Pa, and concentration in the range of 0.4-0.5 g/mL were set for the experiments. The time parameter was variable regarding to the temperature and concentration of each experiment and it was measured to evaluate the rate of process. The crystal size as an experiment response was estimated using image analysis of produced samples by MIP software in micrometer scale. Finally, a growth rate equation was established considering the results obtained from temperature variations, pressure, concentration, and time. Decrease in temperature variations caused to increase in crystallization rate and crystal size. The pressure above 7.5�10 5 Pa resulted in producing crystals smaller than 40 μm. The lowest crystal size was observed in the concentration of 0.45-0.5 g/mL and the crystallization time below 8 s. In addition, the results obtained from presented equation and experiment were matched with McCabe model.

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Section: Influence Of Pressure Variations On the Crystal Sizementioning

confidence: 99%

Thermo‐Kinetic Investigation of the Preparation of Micronized Ammonium Perchlorate Particles by Using Rapid Cooling Crystallization Method

Zinab

Hosseini

Tavangar

et al. 2021

Propellants Explo Pyrotec

View full text Add to dashboard Cite

show abstract

“…The crystallization being the critical step in the manufacturing of AP, the modifications made in crystallization parameters alter the crystal strength, purity and particle size distribution of AP (Mullin, 1997;Lakshmi et al, 2016). Previous works have reported the inclusion of foreign metal ions into AP crystal and its impact on the thermal decomposition characteristics; but the physical and crystallographic aspects were not discussed (Boldyrev, 2006;Jacobs & Whitehead, 1969;Pelly, 1982).…”

Section: Introductionmentioning

confidence: 99%

Impact of lattice inclusion of Cu and Fe ions on thermal decomposition characteristics of ammonium perchlorate

Nair

Mathew

Nair

2020

PeerJ Inorganic Chemistry

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Ammonium perchlorate (AP) is the universal oxidiser in use for all the solid rocket propellant motors used for space exploration due to its high available oxygen content and thermal decomposition without any solid residue. The inclusion of reactive species in AP directly affect the viscoelastic and ballistic properties of the propellant. Variations in lattice configuration of AP change its physical and thermal characteristics dramatically. In the present work AP was doped with Copper perchlorate and Iron perchlorate through co crystallisation. The impact of inclusion of these ionic species in the lattice on the thermal decomposition characteristics of AP was examined. The incorporation affected the physical as well as the ballistic characteristics of the resultant AP. The incorporation of foreign ions into AP crystals significantly changed the crystal morphology. The decomposition temperature decreased vis-a-vis with normal AP. The activation energy remarkably decreased for the doped AP crystals.

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Section: Introductionmentioning

confidence: 99%

Peer Review #2 of "Impact of lattice inclusion of Cu and Fe ions on thermal decomposition characteristics of ammonium perchlorate (v0.2)"

2020

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Effect of crystallization parameters and presence of surfactant on ammonium perchlorate crystal characteristics

Cited by 15 publications

References 21 publications

Thermo‐Kinetic Investigation of the Preparation of Micronized Ammonium Perchlorate Particles by Using Rapid Cooling Crystallization Method

Thermo‐Kinetic Investigation of the Preparation of Micronized Ammonium Perchlorate Particles by Using Rapid Cooling Crystallization Method

Impact of lattice inclusion of Cu and Fe ions on thermal decomposition characteristics of ammonium perchlorate

Peer Review #2 of "Impact of lattice inclusion of Cu and Fe ions on thermal decomposition characteristics of ammonium perchlorate (v0.2)"

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