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The Effect of Detonator Shell Materials on Detonation Calorimetry Results 雷管壳体材料对爆轰量热结果的影响
IF 0.8 4区 工程技术
Central European Journal of Energetic Materials Pub Date : 2020-12-28 DOI: 10.22211/cejem/131804
O. Němec, Tomáš Musil, M. Künzel
{"title":"The Effect of Detonator Shell Materials on Detonation Calorimetry Results","authors":"O. Němec, Tomáš Musil, M. Künzel","doi":"10.22211/cejem/131804","DOIUrl":"https://doi.org/10.22211/cejem/131804","url":null,"abstract":"Detonation calorimetry is a method for the determination of the heat released by the detonation of an explosive charge. Compared to classical combustion calorimetry, detonation calorimetry requires an inert atmosphere, a large sample mass and a detonator for its initiation. This detonator releases some energy for which the results must be corrected. Four types of detonator have been tested in the calorimeter alone and also in combination with explosive charges of PETN. It was found that the aluminium shell of the detonator considerably increases the apparent heat of detonation of the PETN samples in a vacuum, while the presence of combustible (polymeric) components has the opposite effect. Pressurization of the calorimetric vessel with nitrogen gas only partially suppresses these effects. The preferred technique is to use copper or glass confinement in a high pressure inert atmosphere.","PeriodicalId":9679,"journal":{"name":"Central European Journal of Energetic Materials","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2020-12-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48014371","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Regularities of Spheroidization of HMX Extracted from Solid Propellant Disposal Products 固体推进剂处理产物中HMX的球化规律
IF 0.8 4区 工程技术
Central European Journal of Energetic Materials Pub Date : 2020-12-28 DOI: 10.22211/cejem/131782
Maksym Cheltonov, R. Zakusylo, I. Ustymenko
{"title":"Regularities of Spheroidization of HMX Extracted from Solid Propellant Disposal Products","authors":"Maksym Cheltonov, R. Zakusylo, I. Ustymenko","doi":"10.22211/cejem/131782","DOIUrl":"https://doi.org/10.22211/cejem/131782","url":null,"abstract":"Nitramines of high quality for manufacturing high-energy composites, such as oсtogen (HMX) and hexogen, have received much attention by researchers worldwide. Mixed formulations containing fillers in the form of spheroidal dispersed particles of explosives are homogenized at lower energy consumption. They are characterized by stable rheological characteristics, which guarantee the quality of the products obtained on the basis thereof. Methods for obtaining spherical nitramine particles by means of ultrasonic and hydromechanical rounding using commercial HMX were evaluated. It was found that under similar conditions, rounding by the hydromechanical process in a vortex device is more efficient and less energy-consuming than that of the ultrasonic method. It was confirmed that spheroidization of commercial HMX in an aqueous dimethyl sulfoxide (DMSO) medium by hydromechanical rounding occurs due to erosion of crystals of large size (70 μm or more). Based on the experimental results with spheroidization of commercial nitramine, the mass fraction content below 50 μm versus time was plotted for hydromechanical rounding. The method of hydromechanical rounding in aqueous DMSO to obtain spheroidized HMX, extracted from solid propellant using DMSO, was found to be the most suitable. Spheroidized modified HMX with specific characteristics (density and crystals of near-spherical shape) was obtained, which could be used for the manufacture of high-energy composites.","PeriodicalId":9679,"journal":{"name":"Central European Journal of Energetic Materials","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2020-12-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47932506","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Study of the Synthesis of GAP-HTPB-GAP Liquid Copolymer GAP-HTPB-GAP液体共聚物的合成研究
IF 0.8 4区 工程技术
Central European Journal of Energetic Materials Pub Date : 2020-12-28 DOI: 10.22211/cejem/131803
M. Chmielarek, Paweł Maksimowski, Katarzyna Cieślak, T. Gołofit, Hanna Drozd
{"title":"Study of the Synthesis of GAP-HTPB-GAP Liquid Copolymer","authors":"M. Chmielarek, Paweł Maksimowski, Katarzyna Cieślak, T. Gołofit, Hanna Drozd","doi":"10.22211/cejem/131803","DOIUrl":"https://doi.org/10.22211/cejem/131803","url":null,"abstract":"","PeriodicalId":9679,"journal":{"name":"Central European Journal of Energetic Materials","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2020-12-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47069364","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Estimation of the Detonation Pressure of Co-crystal Explosives through a Novel, Simple and Reliable Model 用一种新的、简单可靠的模型估算共晶炸药的爆压
IF 0.8 4区 工程技术
Central European Journal of Energetic Materials Pub Date : 2020-12-28 DOI: 10.22211/cejem/131687
N. Zohari, M. Montazeri, S. G. Hosseini
{"title":"Estimation of the Detonation Pressure of Co-crystal Explosives through a Novel, Simple and Reliable Model","authors":"N. Zohari, M. Montazeri, S. G. Hosseini","doi":"10.22211/cejem/131687","DOIUrl":"https://doi.org/10.22211/cejem/131687","url":null,"abstract":"","PeriodicalId":9679,"journal":{"name":"Central European Journal of Energetic Materials","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2020-12-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44715299","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
The Preparation and Properties of Low-Nitrogen Nitrocellulose by Alkaline Denitration 碱性脱硝法制备低氮硝化纤维素及其性能研究
IF 0.8 4区 工程技术
Central European Journal of Energetic Materials Pub Date : 2020-12-28 DOI: 10.22211/cejem/131783
Zhongan Tao, Shiying Li, Yajun Ding, Zhongliang Xiao
{"title":"The Preparation and Properties of Low-Nitrogen Nitrocellulose by Alkaline Denitration","authors":"Zhongan Tao, Shiying Li, Yajun Ding, Zhongliang Xiao","doi":"10.22211/cejem/131783","DOIUrl":"https://doi.org/10.22211/cejem/131783","url":null,"abstract":"","PeriodicalId":9679,"journal":{"name":"Central European Journal of Energetic Materials","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2020-12-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44348680","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 6
Ballistic Analysis of Missile Propulsion in a Perforated Barrel Launcher 穿孔管发射装置导弹推进弹道分析
IF 0.8 4区 工程技术
Central European Journal of Energetic Materials Pub Date : 2020-12-18 DOI: 10.22211/cejem/131274
Z. Surma, Z. Leciejewski
{"title":"Ballistic Analysis of Missile Propulsion in a Perforated Barrel Launcher","authors":"Z. Surma, Z. Leciejewski","doi":"10.22211/cejem/131274","DOIUrl":"https://doi.org/10.22211/cejem/131274","url":null,"abstract":"","PeriodicalId":9679,"journal":{"name":"Central European Journal of Energetic Materials","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2020-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43124523","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Melt-cast Energetic Matrices with 3-Nitro-1,2,4-triazole Derivatives for Composite Explosives 含3-硝基-1,2,4-三唑衍生物的熔铸复合炸药含能基质
IF 0.8 4区 工程技术
Central European Journal of Energetic Materials Pub Date : 2020-09-28 DOI: 10.22211/CEJEM/127516
M. Komarova, A. Vakutin, M. Kazutin, N. Kozyrev, G. Sukhanov
{"title":"Melt-cast Energetic Matrices with 3-Nitro-1,2,4-triazole Derivatives for Composite Explosives","authors":"M. Komarova, A. Vakutin, M. Kazutin, N. Kozyrev, G. Sukhanov","doi":"10.22211/CEJEM/127516","DOIUrl":"https://doi.org/10.22211/CEJEM/127516","url":null,"abstract":"","PeriodicalId":9679,"journal":{"name":"Central European Journal of Energetic Materials","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2020-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45216954","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Nitration of γ-Cyclodextrin γ-环糊精的硝化作用
IF 0.8 4区 工程技术
Central European Journal of Energetic Materials Pub Date : 2020-09-28 DOI: 10.22211/CEJEM/127713
Paweł Maksimowski, A. Janson
{"title":"Nitration of γ-Cyclodextrin","authors":"Paweł Maksimowski, A. Janson","doi":"10.22211/CEJEM/127713","DOIUrl":"https://doi.org/10.22211/CEJEM/127713","url":null,"abstract":"","PeriodicalId":9679,"journal":{"name":"Central European Journal of Energetic Materials","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2020-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49042826","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Effect of the Molecular Structure and Molecular Weight of Poly(Vinylidene Fluoride-Chlorotrifluoroethylene) Copolymers on the Characteristic Properties of TATB-based Composites 聚偏氟乙烯-三氟氯乙烯共聚物的分子结构和分子量对tatb基复合材料特性的影响
IF 0.8 4区 工程技术
Central European Journal of Energetic Materials Pub Date : 2020-09-28 DOI: 10.22211/CEJEM/127859
Arjun Singh, T. Sharma, M. Kumar
{"title":"Effect of the Molecular Structure and Molecular Weight of Poly(Vinylidene Fluoride-Chlorotrifluoroethylene) Copolymers on the Characteristic Properties of TATB-based Composites","authors":"Arjun Singh, T. Sharma, M. Kumar","doi":"10.22211/CEJEM/127859","DOIUrl":"https://doi.org/10.22211/CEJEM/127859","url":null,"abstract":"","PeriodicalId":9679,"journal":{"name":"Central European Journal of Energetic Materials","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2020-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46452773","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Studies on the Effect of Nitrate Esters on the Properties of Advanced Energetic Propellants 硝酸酯对高能推进剂性能影响的研究
IF 0.8 4区 工程技术
Central European Journal of Energetic Materials Pub Date : 2020-09-28 DOI: 10.22211/CEJEM/127788
Amit Kumar, P. Chavan, V. S. Sadavarte, S. Pande, D. Bhowmik, S. S. Mada
{"title":"Studies on the Effect of Nitrate Esters on the Properties of Advanced Energetic Propellants","authors":"Amit Kumar, P. Chavan, V. S. Sadavarte, S. Pande, D. Bhowmik, S. S. Mada","doi":"10.22211/CEJEM/127788","DOIUrl":"https://doi.org/10.22211/CEJEM/127788","url":null,"abstract":": Propulsion designers all over the world are exploring the possibility of achieving higher performance by enhancing the energy of solid propellants. This can be achieved by replacing non-energetic ingredients with energetic ones or by replacing low density ingredients, particularly binders, with higher density ones, without affecting the processibility and ageing characteristics. The same has been attempted by using nitroglycerine (NG) and butanetriol trinitrate (BTTN) as plasticizers in propellant compositions. In the present study, NG and BTTN have been used in different plasticizer to polymer ratios (Pl/Po) and various parameters of each composition have been theoretically predicted. Three propellant compositions plasticized with NG, BTTN and a 1:1 combination of NG and BTTN, have been processed and analyzed for targeted properties. From the theoretical data, it was observed that there is a negligible increase in density impulse beyond a Pl/Po of apart from the higher density and calorimetric values of the NG-plasticized propellant; these plasticizers have a significant effect on the ballistic and mechanical properties. Another observation was that the elongation of BTTN and NG/BTTN (1:1) plasticized propellants is significantly higher at a low crosshead rate than NG-plasticized propellant, implying that the two former propellants have higher strain capabilities at low temperatures and can be used for missiles having long term low temperature storage requirements. Thermal decomposition studies have been carried out by DSC, and for each composition 5 distinct peaks were observed.","PeriodicalId":9679,"journal":{"name":"Central European Journal of Energetic Materials","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2020-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42279778","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
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