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Information × Registration Number 0315U005031, 0114U005329 , R & D reports Title Research and development of brazing technology - joining of ceramic details with metal consruction for new generation electron beam welding tool intended for works in open space popup.stage_title Дослідження та розробка технології паяння - з'єднання керамічних деталей з металоконструкціями для електронно-променевого зварювального інструменту нового покоління, призначеного для робіт у відкритому космосі Head Naidich Yury Vladimirovich, Registration Date 05-02-2015 Organization Frantzevich Insitute for Materials Science Problems of the Ukranian National Academy of Sciences popup.description2 Measured contact angles of ceramic materials silver-copper-titanium alloy (solder). The experimental conditions - vacuum of 10-3 Pa, the temperature of - 880 ° C. Based on these studies selected optimum solder composition: (Ag72-Cu28) +4 weights. % Ti. We propose three leaf form solder type "sandwich": base (Ag, Cu) / titanium / base (Ag, Cu); the thickness of the layers are selected from the general requirement: 4 - 5 scale. % Tі. The technology of vacuum brazing - temperature-time modes. Were made and tested prototyping soldered metal-ceramic samples of the cathode assembly of electron-beam instrument of the new generation, designed to work in open space. The characteristics of the ceramic-metal solder joints: leakage at a pressure up to 5 atm, resistance to thermal cycling on the treatment of 20 - 500 - 40 thermal cycles of 20 ° C and resistance to cold solder joints at temperatures up to -75 ° C. Product Description popup.authors Зюкін Микола Степанович Костюк Борис Дмитович Стецюк Тетяна Віталіївна Уманський Володимир Павлович popup.nrat_date 2020-04-02 Close