Registration Number
0217U002401,
0112U002093
, R & D reports
Title
Development of a new generation of ceramic fuel cells based on ceramic and metalloceramic anodes for operation at 600 C.
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Head
Vasilev Aleksandr, Доктор фізико-математичних наук
Registration Date
10-02-2017
Organization
Frantzevich Insitute for Materials Science Problems of the Ukranian National Academy of Sciences
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The research subject is a modeling of the structure of 1Ce10ScSZ (1-мол. % CeO2 - 10-мол. % Sc2O3 - 89-мол. % ZrO2) solid electrolyte and the dependencies of mechanical behaviour and oxygen-ionic conductivity on the structure. The objective is a structural optimization of fuel cells based on 1Ce10ScSZ solid electrolyte and theoretical fundamentals of structural sensitivity of its mechanical behaviour and oxygen-ionic conductivity. Methods of research: transmission and scanning electronmicroscopy and related techniques, x-ray diffraction analysis, mechanical tests on biaxial bend, impedance spectroscopy, density estimation, modeling. Considering the powder consolidation and structure refinement as the thermally activated processes, the relationships between the strength and subgrain and grain sizes, porosity, quality of interfaces, fracture mechanisms and sintering temperatures are found. The phenomenological theories on a structure formation of bulk and film 1Ce10ScSZ electrolytes,sintered and deposited with electron beam, modified by features of initial materials, thermal and mechanical energies, and structural sensitivities of their mechanical behaviour and oxygen-ionic conductivity are estabished. The dependencies found are based on data on interfaces states, fracture nano- and micromechanisms, and sizes of structural constituents and porosity, which are typical for sitered materials. The concept on a structural optimization of ceramic fuel cells are formulated.
Product Description
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Биков І.П.
Бричевський М.М.
Бродніковська І.В.
Бродніковський Є.М.
Бродніковський Д.М.
Васильєв O.Д.
Головкова М.Є.
Коваль О.Ю.
Ковальчук Ю.
Лисуненко Н.О.
Павлиго Т.М.
Полішко І.О.
Самелюк А.В.
Шевченко С.
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2020-04-02
