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Information × Registration Number 0218U000478, 0117U000730 , R & D reports Title Study of mechanisms of the service environment influence on physical and mechanical properties of ceramic fuel cells materials and the elaboration of its improving methods popup.stage_title Head Ostash Orest, Registration Date 14-02-2018 Organization Karpenko Physico-Mechanical Institute of the National Academy of Sciences of Ukraine popup.description2 The mechanical behavior of 8YSZ-NiO сeramics with the content of 50 wt% of nickel oxide and porous composite on the basis of the MAX-phase Ti2AlC as materials for the manufacture of anodes-substrates, as well as dense composites based on MAX-phases of titanium structural modifications 312 and 211 for interconnect elements of ceramic fuel cells (CFC) under the influence of high-temperature reducing (taking into account the content of water vapor) and oxidizing working media has been studied. It has been established that the presence of water vapor on the boundary of the electrolyte and the anode of the CFC causes its operational degradation, especially as the higher concentration of water. The mechanical behavior of a number of composites based on MAX-phases of titanium as materials of CFC interconnect elements at temperatures of 20 ... 600 ° C in air and water was investigated. It was established that the material of the following phase composition is the best: 73% by weight Ti2AlC, 20% Ti3Al and 7% TiO. It demonstrated the strength of 570-580 MPa in the temperature range of 20 ... 600 ° C in the air, 580-585 MPa in water at 600 ° C and the highest heat resistance. Composites based on the MAX phase Ti3AlC2 or Ti3AlC2 (40-83%) and Ti2AlC (17-60%) phases have lower characteristics, in particular air durability at 20 ° C less than 1,3 times, at 600 ° C - at 1.6 times, and in water at 600 ° C - 1.7 times. At the same time they have extremely unsatisfactory heat resistance. Thus, the composite on the basis of MAH phases of titanium modification 211 is optimal for the CFC interconnects. Product Description popup.authors Івасишин Андрій Дмитрович Василів Богдан Дмитрович Горак Ігор Степанович Подгурська Вікторія Ярославівна popup.nrat_date 2020-04-02 Close