کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4764417 | 1423555 | 2017 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
An effective method to embed catalyst on AP and its effect on the burn rates of aluminized composite solid propellants
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
مهندسی شیمی (عمومی)
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چکیده انگلیسی
This study makes an attempt to demonstrate the feasibility of a technique to embed the catalyst on ammonium perchlorate (AP) surface, in aluminized composite solid propellants. Micron sized iron oxide (IO) and nano sized IO were used in this study and its effect on the viscosity and burn rates of composite solid propellants were recorded. Burn rates of propellants prepared with this catalyst embedded AP were measured using a Crawford bomb and observed to be increasing using this technique due to the proximity of the catalyst with AP. The increase in burn rate obtained with micron sized and nano sized catalyst embedded on AP were 27.4% and 7.3%, respectively over those mechanically mixed in the propellant. The end of mix viscosity of the propellant prepared with nano IO was observed to be highest (4.27Â ÃÂ 103 Poise) when it is mechanically mixed in the propellant. The viscosity of the propellant was observed to improve to 3.79Â ÃÂ 103 Poise with the use of the technique of embedding the nano catalyst on AP as the total number of particles reduced. These explanations were the result of a computational model of randomly packed particles of AP, aluminum and catalyst generated for a propellant with 1% catalyst.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Combustion and Flame - Volume 182, August 2017, Pages 114-121
Journal: Combustion and Flame - Volume 182, August 2017, Pages 114-121
نویسندگان
Gaurav Marothiya, Chaitanya Vijay, K. Ishitha, P.A. Ramakrishna,