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Information × Registration Number 0218U002352, 0115U002251 , R & D reports Title Development and investigation of surface metallization of polymer composites by lead-free knitted soldered meshes for use in aircraft constructions and wind power industry popup.stage_title Head Mazna Alekcandra Viktorovna, Registration Date 16-02-2018 Organization Frantzevich Insitute for Materials Science Problems of the Ukranian National Academy of Sciences popup.description2 Objects of research - knitted-brazed copper nets with an increased effect of dissipation of lightning energy with environmentally approved lead-free solders. The purpose of the work is to develop the scientific and technological bases of manufacturing processes lightning protection knitted mesh of copper-brazed with increased energy dissipation effect of lightning with environmentally lead-free solders permitted for the manufacture and repair of structural elements of the polymer composites in aviation technology and wind energy. Research methods - optical microscopy, physical and mechanical tests, determination of wetting by a drop-drop method with the use of a method of capillary cleaning of a droplet melt, determination of electrical resistance of solder and nets by 4-point method, bit tests with the effect of simulated lightning on a certified stand at NDPKI "Lightning". The work is conditioned by the need to ensure reliable accident-free operation of aviation equipment in thunderstorm conditions and to prevent the destruction of cost wind farms, in particular windblocks. Through the use of lead-free solder the conditions of safe production and use in the manufacturing process of knitted-soldered networks and expansion of the commercial viability of their use in the objects of technology. Lead-free solder for copper microdrills and technology for making knitting-soldering copper nets with lead-free solder with optimal structural and weight parameters. It has been established that the boundary corners of the welding of copper wires are reduced in the case of using lead-free solder SAC ( =23 ) compared to solder POS-61 ( =37 ). It is shown that the use of lead-free solvents leads to a decrease in the thickness of soldered layers in loop knots and makes it possible to reduce the weight of lightning-protective protective mesh coating by 10-15%. According to the results of bench-level tests simulated by lightning at normalized pulsed modes, the efficiency of using new current-carrying materials with lead-free soldering was established. Product Description popup.authors Андрієнко Олена Миколаївна Атаман Ірина Іванівна Василенков Юрій Михайлович Вишняков Леон Романович Казімірова Галина Михайлівна Коваль Іван Денисович Корольов Миколай Олексійович Кохана Ірина Миколаївна Коханий Валерій Олексійович Красовська Наталія Олександрівна Красовський Віталій Петрович Кулик Віталій Петрович Локтєв Віктор Краснославович Мазна Олександра Вікторівна Мороз Валентина Павлівна Морозова Валентина Миколаївна Ненахова Любов Олексіівна Нешпор Олексій Вячеславович Ободєєва Ірина Миколаївна Охріменко Володимир Васильвич Павлиго Тетяна Михайлівна Переселенцева Людмила Миколаївна Присяжнюк Ольга Миколаївна Прохоров Олександр Олексанрович Сергєєва Антоніна Петрівна Тищенко Тетяна Володимирівна Хохлова Наталія Миколаївна Яременко Любов Михайлівна Яременко Ольга Павлівна popup.nrat_date 2020-04-02 Close