Wojciech Pawłowski, M. Karpińska, Katarzyna Razarenkow-Pawłowska
{"title":"Persistance of TNT Traces in the Presence of Compounds from Battery Cells","authors":"Wojciech Pawłowski, M. Karpińska, Katarzyna Razarenkow-Pawłowska","doi":"10.22211/cejem/124072","DOIUrl":"https://doi.org/10.22211/cejem/124072","url":null,"abstract":"","PeriodicalId":9679,"journal":{"name":"Central European Journal of Energetic Materials","volume":"17 1","pages":"280-295"},"PeriodicalIF":0.8,"publicationDate":"2020-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47574340","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}
{"title":"N-N Bond Lengths and Initiation Reactivity of Nitramines","authors":"S. Zeman, T. Atalar, A. Růžička","doi":"10.22211/cejem/122723","DOIUrl":"https://doi.org/10.22211/cejem/122723","url":null,"abstract":"","PeriodicalId":9679,"journal":{"name":"Central European Journal of Energetic Materials","volume":"17 1","pages":"169-200"},"PeriodicalIF":0.8,"publicationDate":"2020-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44037697","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}
M. Hara, W. Trzciński, S. Cudziło, M. Szala, Z. Chyłek, Z. Surma
New RDX-based propellants were obtained and investigated. The heat of combustion was determined in a calorimeter and the pressure history was measured in a manometric bomb. Ballistic parameters, such as maximum pressure, propellant force and covolume of gaseous products, as well as the dynamic vivacity, were determined based on the experimental results. The sensitivities to friction and impact were determined for the tested propellants. Calculations of the ballistic characteristics (the heat of combustion, propellant force, covolume and ratio of specific heats of the combustion products, and ballistic energy) were performed. The theoretical parameters were compared with the experimental data and quite good agreement was found between them. The largest differences occurred in the cases of propellant force and covolume. This disagreement is explained. An analysis of the test results and a comparison of the parameters of the RDX-based propellants and the JA2 propellant allowed the possibility of using the tested propellants in ammunition to be assessed.
{"title":"Thermochemical Properties, Ballistic Parameters and Sensitivity of New RDX-based Propellants","authors":"M. Hara, W. Trzciński, S. Cudziło, M. Szala, Z. Chyłek, Z. Surma","doi":"10.22211/cejem/122326","DOIUrl":"https://doi.org/10.22211/cejem/122326","url":null,"abstract":"New RDX-based propellants were obtained and investigated. The heat of combustion was determined in a calorimeter and the pressure history was measured in a manometric bomb. Ballistic parameters, such as maximum pressure, propellant force and covolume of gaseous products, as well as the dynamic vivacity, were determined based on the experimental results. The sensitivities to friction and impact were determined for the tested propellants. Calculations of the ballistic characteristics (the heat of combustion, propellant force, covolume and ratio of specific heats of the combustion products, and ballistic energy) were performed. The theoretical parameters were compared with the experimental data and quite good agreement was found between them. The largest differences occurred in the cases of propellant force and covolume. This disagreement is explained. An analysis of the test results and a comparison of the parameters of the RDX-based propellants and the JA2 propellant allowed the possibility of using the tested propellants in ammunition to be assessed.","PeriodicalId":9679,"journal":{"name":"Central European Journal of Energetic Materials","volume":"17 1","pages":"223-238"},"PeriodicalIF":0.8,"publicationDate":"2020-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41821469","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}
The detonation reaction zone of nitromethane (NM) has been extensively studied both experimentally and theoretically. The measured particle velocity
硝基甲烷的爆轰反应区在实验和理论上都得到了广泛的研究。测得的粒子速度
{"title":"Numerical Modelling of Detonation Reaction Zone of Nitromethane by EXPLO5 Code and Wood and Kirkwood Theory","authors":"B. Štimac, H. Y. Chan, M. Künzel, M. Sućeska","doi":"10.22211/cejem/124193","DOIUrl":"https://doi.org/10.22211/cejem/124193","url":null,"abstract":"The detonation reaction zone of nitromethane (NM) has been extensively\u0000 studied both experimentally and theoretically. The measured particle velocity","PeriodicalId":9679,"journal":{"name":"Central European Journal of Energetic Materials","volume":"17 1","pages":"239-261"},"PeriodicalIF":0.8,"publicationDate":"2020-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47773000","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}
Xiao-gan Dai, Songwei He, Xiaona Huang, Zhijian Yang, Yushi Wen, Ming Li
{"title":"Experimental Investigation of the Effect of Polymers and Crystalline Qualities on the Safety Performance of LLM-105-based PBXs under Dynamic Compression and Shear","authors":"Xiao-gan Dai, Songwei He, Xiaona Huang, Zhijian Yang, Yushi Wen, Ming Li","doi":"10.22211/cejem/124173","DOIUrl":"https://doi.org/10.22211/cejem/124173","url":null,"abstract":"","PeriodicalId":9679,"journal":{"name":"Central European Journal of Energetic Materials","volume":"17 1","pages":"201-222"},"PeriodicalIF":0.8,"publicationDate":"2020-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47683888","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}
Wang Xiaochuan, Ping Li, Lu Xianming, Mo Hongchang, Xu Minghui, Ning Liu, Y. Shu
{"title":"Synthesis and Curing of Allyl Urethane NIMMO-THF Copolyether with Three Functional Groups as a Potential Energetic Binder","authors":"Wang Xiaochuan, Ping Li, Lu Xianming, Mo Hongchang, Xu Minghui, Ning Liu, Y. Shu","doi":"10.22211/cejem/119233","DOIUrl":"https://doi.org/10.22211/cejem/119233","url":null,"abstract":"","PeriodicalId":9679,"journal":{"name":"Central European Journal of Energetic Materials","volume":"17 1","pages":"142-163"},"PeriodicalIF":0.8,"publicationDate":"2020-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48385966","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}
The correlation between the mechanical properties of hydroxyl-terminated polyether (HTPE)/N-butyl-N-(2-nitroxyethyl)nitramine (Bu-NENA) binders with different plasticization ratios (pl/po), varied from 0.9 to 1.5, have been studied. The very early stage of evaporation of Bu-NENA from the HTPE/Bu-NENA binder, with a pl/po ratio of 1.2, has been investigated. The results revealed that the pl/po ratio has strong influences on the mechanical properties. When the pl/po ratio was 1.2, the mechanical properties of the HTPE/Bu-NENA binder were satisfactory, the maximum tensile strength and the elongation at break being 2.39 MPa and 93.27%, respectively. The evaporation rate constant of Bu-NENA from HTPE/Bu-NENA binder with a pl/po ratio of 1.2 increased from 0.31·10–5 to 2.32·10–5 s–1 as the temperature was increased from 50 to 90 °C. The value of the activation energy of evaporation was 51.47 kJ/mol and its pre-exponential factor was 6.14·102 s–1.
{"title":"Mechanical Properties of HTPE/Bu-NENA Binder and the Kinetics of Bu-NENA Evaporation","authors":"Shen Yuan, Yun-jun Luo","doi":"10.22211/cejem/119352","DOIUrl":"https://doi.org/10.22211/cejem/119352","url":null,"abstract":"The correlation between the mechanical properties of hydroxyl-terminated polyether (HTPE)/N-butyl-N-(2-nitroxyethyl)nitramine (Bu-NENA) binders with different plasticization ratios (pl/po), varied from 0.9 to 1.5, have been studied. The very early stage of evaporation of Bu-NENA from the HTPE/Bu-NENA binder, with a pl/po ratio of 1.2, has been investigated. The results revealed that the pl/po ratio has strong influences on the mechanical properties. When the pl/po ratio was 1.2, the mechanical properties of the HTPE/Bu-NENA binder were satisfactory, the maximum tensile strength and the elongation at break being 2.39 MPa and 93.27%, respectively. The evaporation rate constant of Bu-NENA from HTPE/Bu-NENA binder with a pl/po ratio of 1.2 increased from 0.31·10–5 to 2.32·10–5 s–1 as the temperature was increased from 50 to 90 °C. The value of the activation energy of evaporation was 51.47 kJ/mol and its pre-exponential factor was 6.14·102 s–1.","PeriodicalId":9679,"journal":{"name":"Central European Journal of Energetic Materials","volume":"17 1","pages":"119-141"},"PeriodicalIF":0.8,"publicationDate":"2020-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43416872","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}
{"title":"Theoretical Study on Nitroimine Derivatives of Azetidine as High-Energy-Density Compounds","authors":"Butong Li, Lu-Lin Li","doi":"10.22211/cejem/119139","DOIUrl":"https://doi.org/10.22211/cejem/119139","url":null,"abstract":"","PeriodicalId":9679,"journal":{"name":"Central European Journal of Energetic Materials","volume":"17 1","pages":"107-118"},"PeriodicalIF":0.8,"publicationDate":"2020-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45085050","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}
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