Precursor influence on structure of metal-ceramic composites designed for aviation machine parts
Jerzy Myalski, Andrzej Posmyk
Quarterly No. 1, 2015 pages 28-33
DOI:
keywords: hybrid composite, structure, precursor, glassy carbon, tribological properties, solid lubricant
abstract The paper presents the influence of the spatial structure of a glassy carbon precursor on the structure and properties of sliding composites. Comparative studies carried out and the results obtained have been described for composites containing conventional carbon foam as well as those containing glassy carbon foams, from various types of glassy carbon precursors, functioning as reinforcement and a solid lubricant. The application of two different reinforcing phases based on the different types of precursors used, results in producing composites of varied structures and properties. Such a procedure also requires a pressure change in precursor infiltration. The material used for production of the carbon precursor as well as the process parameters of its pyrolysis allow significant modification of the structure and properties of the manufactured composite.