Effect of particle size, heating rate and CNT addition on densification, microstructure and mechanical properties of B4C ceramics
Source abstract
Abstract
Abstract Monolithic B 4 C ceramics and B 4 C–CNT composites were prepared by spark plasma sintering (SPS). The influence of particle size, heating rate, and CNT addition on sintering behavior, microstructure and mechanical properties were studied. Two different B 4 C powders were used to examine the effect of particle size. The effect of heating rate on monolithic B 4 C was investigated by applying three different heating rates (75, 150 and 225 °C/min). Moreover, in order to evaluate the effect of CNT addition, B 4 C–CNT (0.5–3 mass%) composites were also produced. Fully dense monolithic B 4 C ceramics were obtained by using heating rate of 75 °C/min. Vickers hardness value increased with increasing CNT content, and B 4 C–CNT composite with 3 mass% CNTs had the highest hardness value of 32.8 GPa. Addition of CNTs and increase in heating rate had a positive effect on the fracture toughness and the highest fracture toughness value, 5.9 MPa m 1/2 , was achieved in composite with 3 mass% CNTs.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Boron and Carbon Nanomaterials Research · Advanced ceramic materials synthesis · Aluminum Alloys Composites Properties
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (37)
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