غفوری, مرتضی
[ 1 ] - روش‌های جدید در ارزیابی و پیش‌بینی کهولت پیشرانه‌های جامد مرکب
In order to aging study of the compsite solid propellants, usually the changes in propellant properties during warehousing and storage are measured, and then the shelf life of them estimated. In this regard, by applying the common methods based on mechanical tests, chemical and thermal analysis, the propellant properties due to aging and time lapse are measured. In this paper, first we remark t...
[ 2 ] - آثار به کارگیری نانوذرات در پیشرانه های جامد مرکب
Composite solid propellants are materials that constitute from an oxidizer, an organic binder, a metallic fuel, additives and etc. Nowadays the size of energetic particles is attended because of their functional profits. Size reduction is well known way to increasing reactivity of additives in propellant formulations. Nanoparicles have considerable effects on composite solid propellants propert...
[ 3 ] - مروری بر روش های بهبود خواص مکانیکی پیشرانه های جامد مرکب بر پایه GAP (علمی-ترویجی)
GAP propellants has good performance due to high energy of this polymer. Unfortunately, due to poor flexibility of GAP polymer and presence of rigid and conjugated azide side groups in its structure, they have poor mechanical properties especially under low temperatures. This article deals with methods of improving mechanical properties of solid composite propellants based on GAP through changi...
[ 4 ] - پیش‌بینی ناپایداری احتراق در موتورهای پیشرانه جامد مرکب
The occurrence of any oscillation and turbulence in the combustion chamber pressure exits the combustion stability conditions. The range of these fluctuations depends on productive operating conditions and is always undesirable, even if they do not have explosion and destruction effects. In this paper, while investigating the process of combustion solid propellant combustion phenomenon and its ...
[ 5 ] - بررسی اثر تعداد عاملیت اپوکسی‌های آروماتیک بر سینتیک پخت ترپلیمر پلی‌بوتادی‌ان آکریلیک اسید آکریلونیتریل (PBAN)با استفاده از تکنیک FT-IR
Polybutadiene acrylic acid acrylonitrile (PBAN) is binder for composite solid propellants used in spacecraft systems which its curing kinetics is so important. In this research, the effect of functionality of epoxy curative on the curing kinetics of PBAN is researched. Equivalent stoichiometric ratios of PBAN and di-functional (DER 331) and tri-functional (LY 5052) epoxy curatives was cured at ...
[ 6 ] - بررسی حساس کننده های مورد استفاده در مواد منفجره تجاری آمونیوم نیترات
The type of sensitizer used in commercial explosives is one of the important factors in determining the cost of production as well as the safety, performance, shelf-life and application characteristics of commercial explosives. In this paper, various sensitizing agents that are currently used, including aluminum powder, monomethyl ammonium nitrate, chemical gassing, microballoons and porous amm...
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