Fabrication and ultra-high-temperature properties of lightweight carbon-bonded carbon fiber composites
Source abstract
Abstract
Abstract Carbon bonded carbon fiber (CBCF) composites with different fiber volume fractions (FVFs) are prepared. This paper mainly investigates the effect of FVFs and the ultra-high temperature on the mechanical and thermal properties of CBCF composites. Experimental results show that the microstructure of CBCF composites is anisotropic, random distribution in xy direction and layering in z direction. With higher FVFs, the modulus and fracture strength are higher. The fracture strength in xy direction is greatly higher than that in z direction, because more fibers bear the load. Elastoplastic behavior of stress-strain curves is observed in z direction, which is attributed to the compression of porosity and gap. Especially, at ultra-high temperature, the plastic hardening effect is remarkable. In addition, the thermal conductivities of CBCF composites with different FVFs are characterized, which increase exponentially with temperature.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Advanced ceramic materials synthesis · Fiber-reinforced polymer composites · Cellular and Composite Structures
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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