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PMD용 BKNO<sub>3</sub> 금속화약의 제조공정 및 특성분석
심정섭,김상백,안길환,김준형,류병태,Shim, Jungseob,Kim, Sangbaek,Ahn, Gilhwan,Kim, Junhyung,Ryu, Byungtae 한국추진공학회 2018 한국추진공학회지 Vol.22 No.3
고체 점화제 $BKNO_3$는 항공우주 및 유도탄 등의 점화제로 널리 적용되는데 본 연구에서는 $BKNO_3$의 제조공정과 특성평가를 수행하였다. 이 고체 점화제는 금속분말과 산화제 그리고 유기 고분자물질(결합재)로 구성된다. 증발법(evaporation process)을 사용하여 원료들을 균질하게 혼합하였다. CEA 프로그램을 사용하여 $BKNO_3$의 물질특성 및 열적 반응 해석을 통한 최적 조성비를 설계하였으며, 입도, 형상, 감도, 열량 분석 등의 특성 평가를 수행하여 결과를 분석하였다. This study investigated the manufacturing process and characteristics of $BKNO_3$ (Boron Potassium Nitrate) as a pyrotechnic propellant that is commonly used in the aerospace, defense, and automobile industries. The solid mixture was composed of oxidizing agent, fuel, and binder. Evaporation process was used to uniformly mix the raw materials. The optimal ratio of composition was designed through the CEA program analysis of the material characteristics and thermal responses. Further the size, shape, sensitivity, and calorimetry characteristics were studied.
심정섭(Jungseob Shim),김상백(Sangbaek Kim),안길환(Gilhwan Ahn),김준형(Junhyung Kim) 한국추진공학회 2016 한국추진공학회지 Vol.20 No.3
This research investigated the manufacturing process and characteristics analysis of ZPP(Zirconium Potassium Perchlorate) as pyrotechnic are commonly found in the aerospace, defense, and automotive industries. A solid pyrotechnic mixture is composed of an oxidizing agent, fuel, and binder. Precipitation process was used to uniformly mix the raw material. Through the analysis of the material characteristics and thermal response is designed optimum ratio by NASA CEA program. It was compared by performing the evaluation of these size, shape and calorimetry characteristics.
PMD용 화약 BKNO<SUB>3</SUB> 제조 및 특성분석
심정섭(Jungseob Shim),김상백(Sangbaek Kim),안길환(Gilhwan Ahn),김준형(Junhyung Kim),류병태(Byungtae Ryu) 한국추진공학회 2017 한국추진공학회 학술대회논문집 Vol.2017 No.5
고체 점화제 BKNO3는 항공우주 및 유도탄, 자동차 산업 등에 점화제로 널리 적용되는데 본 연구에서는 BKNO3의 제조공정 과 특성평가를 수행하여 정리하였다. PMD에 사용되는 고체 점화제는 보통 금속분말과 산화제 그리고 유기 고분자물질(결합재)로 구성되며, 이들 원료들을 균질하게 혼합하기 위하여 본 연구에서는 증발법(evaporation process)를 사용하여 원료를 제조하였다. 원료 물질의 특성 및 열적 반응 해석(CEA Program)을 통한 최적 조성비를 설계하였으며, 이들의 입도/형상/감도/열량 분석 등의 특성 평가를 수행하여 결과를 비교 분석하였다. This research investigates the manufacturing process and characteristics analysis of BKNO3 (Boron Potassium Nitrate) as pyrotechnic are commonly found in the aerospace, defense, and automotive industries. A solid pyrotechnic mixture is composed of an oxidizing agent, fuel, and binder. Precipitation process was used to uniformly mix the raw material. Through the analysis of the material characteristics and thermal response is designed optimum ratio by NASA CEA program. It was compared by performing the evaluation of these size/shape/sensitivity/calorimetry characteristics.
심정섭(Jungseob Shim),김상백(Sangbaek Kim),안길환(Gilhwan Ahn),김준형(Junhyung Kim),류병태(Byungtae Ryu) 한국추진공학회 2018 한국추진공학회지 Vol.22 No.3
This study investigated the manufacturing process and characteristics of BKNO₃ (Boron Potassium Nitrate) as a pyrotechnic propellant that is commonly used in the aerospace, defense, and automobile industries. The solid mixture was composed of oxidizing agent, fuel, and binder. Evaporation process was used to uniformly mix the raw materials. The optimal ratio of composition was designed through the CEA program analysis of the material characteristics and thermal responses. Further the size, shape, sensitivity, and calorimetry characteristics were studied.
심정섭(Jungseob Shim),방기복(Gibog Bang) 한국추진공학회 2016 한국추진공학회 학술대회논문집 Vol.2016 No.5
복합화약에 사용되는 원료들의 표면에너지를 wilhelmy plate 법과 wicking 방법을 사용하여 측정하였다. 계면에서의 약한 결합은 외부로부터 응력을 받으면 계면이 쉽게 분리가 일어나 성능 및 감도에 영향을 미친다. 원료들의 계면에너지를 계산하고 기계적 성질과 연계된 stress-strain master curve를 통해 계면에서의 부착력을 해석하였다. 질산계열 화약과 고분자 결합제의 표면에너지를 계산하여 원료화약과 결합제간의 표면에너지 차이가 적을수록 계면에서 강한 부착상태를 보였으며, 부착력은 커짐을 확인하였다. The surface energy of materials is measured by wilhelmy plate and wicking method. The interfacial energy between the filler and the binder is calculated from the disperse phase and the polar phase of surface energy. Time dependent compressive properties of composite explosives have been determined by stress-strain curves obtained at different strain rates and temperatures. The interfacial state of the PBS was obsrved through SEM. It was found from the result that the interface between the explosive and the binder becomes better adhesion with decreasing interfacial tension and increasing work of adhesion. The result clearly shows that the castable PBX has good adhesion more than the pressable PBX
심정섭(Jungseob Shim),방기복(Kibok Bang) 한국추진공학회 2016 한국추진공학회 학술대회논문집 Vol.2016 No.12
복합화약(PBX)은 RDX 등의 원료화약과 고분자 결합제를 사용하여, 원료화약과 고분자 결합제간의 결합력이 약할 경우 외부로부터 응력을 받으면 결합제계로부터 활성충전재가 쉽게 분리됨으로써 기공이 생성되는데 이러한 기공들은 복합화약의 물성을 현저히 저하시켜 조폭현상의 원인이 될 수 있다. 본 연구에서는 복합화약에 널리 사용되고 있는 2종의 RDX와 4종의 고분자 결합제를 선택하였으며, Fowkes, van Oss, Neumann approaches and kaelble equation 식을 사용하여 원료화약과 결합제간에 표면에너지를 계산하여 이들간의 상관관계를 규명하였다. Plastic bonded explosive(PBX) is mainly composed of the nitramine explosive, RDX and polymer binder. When the adhesion between nitramine crystals and binder is not particularly strong and can be failed under stress, dewetting occurs rather suddenly and this leads to a significant drop in tensile strength of explosives. In this study, 2 kinds of RDX and 4 kinds of ethylene vinyl acetate copollymers are selected, since they are widely used in many plastic bonded explosive. The technical objective of this investigation is to calculate for the surface free energy of RDX and EVA using theory of Fowkes, van Oss, Neumann approaches and kaelble equation and to predict the interaction between filler and binder from their surface free energies.
김상백(Sangbaek Kim),심정섭(Jungseob Shim),김장호(Jangho Kim),김준형(Junhyung Kim) 한국추진공학회 2015 한국추진공학회 학술대회논문집 Vol.2015 No.5
이 연구의 목적은 각종 유도탄과 항공우주사업에 적용되는 PMD(Pyrotechnic Mechanical Device)용 화약 ZPP(Ziroconium Potassium Perchlorate)를 제조하기 위해서이다. 기본적으로 PMD에 사용되는 고체 점화제는 금속연료와 산화제 그리고 유기 고분자물질(결합재)로 구성되며, 이들 원료들을 균질하게 혼합하기 위하여 shock-gel process를 사용하였다. 원료 물질의 특성 및 열적 반응 해석을 통한 최적 조성비를 설계하였으며, 이들의 입도/형상/열량 분석 등의 특성 평가를 수행하여 비교하였다. The objective of this work was to study for ZPP(Zirconium Potassium Perchlorate) on PMD(Pyrotechnic Mechanical Device) applied various misiles and air space industry. A solid pyrotechnic mixture is composed of an oxidizing agent, fuel, and binder. Shock-gel process was used to uniformly mix the raw material. Through the analysis of the material characteristics and thermal response is designed optimum ratio. It was compared by performing the evaluation of these size/shape/calorimetry characterization.
고속 혼화공정을 이용한 PMD용 화약 ZPP 제작 및 특성분석
김상백(Sangbaek Kim),심정섭(Jungseob Shim),김준형(Junhyung Kim),류병태(Byungtae Ryu) 한국추진공학회 2018 한국추진공학회지 Vol.22 No.3
Zirconium potassium perchlorate(ZPP) is an igniter composed of potassium perchlorate as an oxidizing agent and zirconium as a fuel with a Viton binder. ZPP has been used to provide an ignition source in the aerospace, propulsion, and automotive industries. This study investigates the manufacturing process and characteristics of ZPP, such performance and shape/calorimetry/pressure characteristics with respect to pyrotechnic mechanical device(PMD). During the production of ZPP, the mixing process was designed to produce uniform particle size and shape by mixing the raw materials at high speed.