Effect of open porosity on flexural strength and hardness of ZrB2-based composites
Source abstract
Abstract
Abstract In this work, Taguchi L 32 experimental design was applied to optimize flexural strength and hardness of ZrB 2 -based composites which were prepared by SPS. With this aim, batch ZrB 2 -based composites tests were performed to achieve targeted experimental design with nine factors (SiC, C f , MoSi 2 , HfB 2 and ZrC content, milling time of C f and SPS parameters such as temperature, time and pressure) at four different levels. Flexural strength of all composite was measured by three-point bending test. Hardness measurement was done by Vickers indenter. SEM was applied to evaluate microstructure. The results showed that SiC grain size plays important role on flexural strength and correlation between flexural strength and open porosity is low while hardness strongly depends to open porosity. Grain size variation in the range of ~1.5 µm to ~8 µm has little effect on hardness.
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Research context
OpenAlex topics: Advanced ceramic materials synthesis · Advanced materials and composites · Boron and Carbon Nanomaterials Research
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References (15)
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