Comparative evaluation of thermal decomposition behavior and thermal stability of powdered ammonium nitrate under different atmosphere conditions

Yang, Man; Chen, Xianfeng; Wang, Yujie; Yuan, Bihe; Niu, Yi; Zhang, Ying; Liao, Ruoyu; Zhang, Zumin

doi:10.1016/j.jhazmat.2017.04.063

Cited by 60 publications

(25 citation statements)

References 41 publications

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“…Freeze-dried F4 and its plain SLNs were held in standard aluminum pans of (Shimadzu DSC 50, Tokyo, Japan) and heated over a range (35°–300°C) at a heating rate of 10°C/min under a constant dry nitrogen atmosphere, purging at a flow rate of 20 mL/min. 62 …”

Section: Methodsmentioning

confidence: 99%

Formulation and Pathohistological Study of Mizolastine–Solid Lipid Nanoparticles–Loaded Ocular Hydrogels

El-Emam¹,

Girgis²,

Hamed³

et al. 2021

IJN

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Section: Methodsmentioning

confidence: 99%

Formulation and Pathohistological Study of Mizolastine–Solid Lipid Nanoparticles–Loaded Ocular Hydrogels

El-Emam¹,

Girgis²,

Hamed³

et al. 2021

IJN

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“…Previous researchers have made similar observations [20,47,48] regarding high activation energy in oxidizing atmospheres. Regarding the thermal decomposition analysis of powdered ammonium nitrate, Yang [49] concluded that the activation energy was lower in air than in nitrogen. Previous scholars have calculated thermodynamic and kinetic parameters for atmospheres with varying oxygen concentrations to determine the change trend of activation energy parameters [50,51]; the activation energy does not increase or decrease strictly with increases in oxygen concentration.…”

Section: 7mentioning

confidence: 99%

Thermal Decomposition Behaviour of Foundry Sand for Cast Steel in Nitrogen and Air Atmospheres

Chen

Zhang

et al. 2020

Mathematical Problems in Engineering

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Sand casting is the most widely used casting technique, known for ages, even since ancient times. The main goal of this study was to determine the thermal decomposition behaviour of foundry sand for cast steel. We first tested the basic properties of foundry sand, including its proximate analysis, chemical composition, and particle size characteristics; we next monitored the thermal decomposition behaviour of foundry sand for cast steel via simultaneous thermal analysis. We focused on the mass loss of foundry sand for cast steel at different heating rates in nitrogen and air atmospheres. We adopted a novel method to calculate the volatile release characteristic index of foundry sand. The volatile content of foundry sand for cast steel was very low, so the volatile release characteristic index of the sand could not be strictly calculated according to this concept. We calculated the thermal decomposition kinetics parameters of foundry sand, namely, the activation energy and preexponential factor, under kinetics theory. To thoroughly test the fitting effect, we conducted a single-factor analysis of variance on the source of error. The results showed that the independent variable has a significant influence on the dependent variable and that the fitting equation we selected is feasible and effective.

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“…AN is very safe for handling and storage, and it does not contain harmful products after its thermal decomposition or combustion . However, the weak ignitability, low heat of formation, and high hygroscopic properties limit its application in the field of energetic compositions . The effects of additives on combustion/decomposition characteristics of AN and AN-based compositions have been widely studied by many authors. − Recently, researchers have reported that transition-metal oxides such as MnO 2 , Fe 2 O 3 , TiO 2 , and CuO could well catalyze the thermal decomposition of AN-based propellants. − Also, the influence of the nanoparticles and nanocatalysts on the combustion/decomposition of AN has also been evaluated. , It was mentioned that the promotion of the thermal decomposition process by the nanosized CuO and NiO shows a strong effect on decreasing the decomposition temperatures of nitramine or AP as oxidizers …”

Section: Introductionmentioning

confidence: 99%

The Catalytic Effect of CuO-Doped Activated Carbon on Thermal Decomposition and Combustion of AN/Mg/NC Composite

et al. 2019

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The activated carbon (AC) doped with CuO (AC-CuO) has been prepared and evaluated as a promising catalyst of energetic compositions. The catalytic activity of AC-CuO on ammonium nitrate/magnesium/nitrocellulose (AN/Mg/NC) composite has been investigated as a typical example. It has been shown that AC-CuO could greatly enhance the decomposition and combustion performances of energetic composites. Thermal analyses indicate that AC-CuO has significant catalytic effects on decomposition of the AN/Mg/NC composite by decreasing the decomposition peak temperature from 261.4 to 209.0 °C, with decreased activation energy from 90.1 to 81.5 kJ mol–1. The linear burning rate of the AN/Mg/NC composite in the presence of AC-CuO increases approximately twice (r b = 20.46 mm s–1 vs r b = 10.27 mm s–1 at a chamber pressure of p 0 = 3.5 MPa).

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Comparative evaluation of thermal decomposition behavior and thermal stability of powdered ammonium nitrate under different atmosphere conditions

Cited by 60 publications

References 41 publications

Formulation and Pathohistological Study of Mizolastine–Solid Lipid Nanoparticles–Loaded Ocular Hydrogels

Formulation and Pathohistological Study of Mizolastine–Solid Lipid Nanoparticles–Loaded Ocular Hydrogels

Thermal Decomposition Behaviour of Foundry Sand for Cast Steel in Nitrogen and Air Atmospheres

The Catalytic Effect of CuO-Doped Activated Carbon on Thermal Decomposition and Combustion of AN/Mg/NC Composite

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