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Information × Registration Number 0224U001848, (0121U108719) , R & D reports Title Investigation of the impurities influence of electronegative and complex-forming elements on the capillary and adhesive properties of metal melts in contact with compounds with ion-covalent and covalent type of chemical bond popup.stage_title Дослідження впливу домішок електронегативних та комплексоутворючих елементів на капілярні та адгезивні властивості металевих розплавів в контакті зі сполуками з іонно-ковалентним та ковалентним типом хімічного зв’язку Head Krasovskyi Vitalii P., Доктор хімічних наук Registration Date 31-01-2024 Organization Frantsevich Institute for Problems of Materials Science National Academy of Science of Ukraine popup.description1 The aim of the work is on the further development of physical-chemistry of high-temperature capillarity of metal melts and methods of heading their adhesion processes. The new wetting experiments using electronegative (oxygen, chlorine, fluorine) and complexing elements will be made. The number of compounds of the study (previously unexplored materials) will be expanded. Continuation of the contact phenomena study and wetting by molten metals of substances with a complex anion based on ionic-covalent compounds containing a complex anion (in particular, titanates TiO3-2, tungstates, WO4-2, etc.). popup.description2 The objects of research are capillary and adhesive properties of metal melts in contact with oxide and other ceramic materials. The purpose of the work is to further develop the physico-chemistry of high-temperature capillarity of metal melts and methods of controlling adhesion processes, to conduct new experiments on wetting using electronegative (oxygen, chlorine, fluorine) and complexing elements, and to expand research compounds (previously unexplored materials). Continuation of the study of contact phenomena, wetting by molten metals of substances with a complex anion based on ion-covalent compounds containing a complex anion. The research method is the study of wetting and contact interaction of metal melts with oxide and other ceramic materials. The wetting of ZnO ceramics by alloys of the Ag–Cu, Ag–Sn, Ag–Ge systems was studied. The addition of Cu, Sn, Ge has a very significant effect on wetting. The wetting of SnO–In2O3 ceramics by alloys of Ag–Cu systems was studied. With increasing Cu content, wetting improves, but contact angles less than 90° are not achieved. The results of wetting, non-wetting and dewetting of difluorides of alkaline earth metals by metal melts containing titanium are summarized, and the dewetting process that occurs in these systems is explained. The kinetics of wetting was studied by the method of high-speed imaging. Three new kinds of titanium lapping tools using 0.07 mm foil and spongy porous structure are proposed and fabricated. Using the spontaneous vacuum impregnation method, a batch of diamond tube drills equipped with cutting diamonds of the AS 500 500/400 brand, which are covered with a layer of Cr and Cu, was manufactured. Mo powders and ultradispersed ACM 1/0 diamonds impregnated with Cu–Sn alloy served as a bond in the tool. Tests on wear and drilling speed of granite and porcelain were carried out. The results of wetting experiments for different groups of oxide materials meet international high-level standards and can   Product Description popup.authors Krasovskyy Vitalii P. Hab Ivan I. Durov Oleksii V. Zhuravlov Vladyslav S. Hryhorenko Mykola F. Sydorenko Tetiana V. Umanskyi Volodymyr P. Krasovska Nataliia O. Poluianska Valentyna V. Stetsiuk Tetiana V. Chernihovtsev Yevhen P. Konovalenko Tetiana B. Martyniuk Stepan I. Leshchenko Mykhailo M. Nakonechnyi Vasyl P. popup.nrat_date 2024-01-31 Close