Porosity dependence of elastic modulus of porous Cr3C2 ceramics
Source abstract
Abstract
Abstract Porous chromium carbide (Cr 3 C 2 ) ceramics exhibiting a uniform and accessible porous structure comprised of three-dimensional connected struts were synthesized using a reactive sintering method. The effect of sintering temperature on the resulting microstructure of the porous Cr 3 C 2 was studied. Young's modulus of the porous carbides was measured by dynamic mechanical analysis (DMA), and a semi-empirical model E = E 0 ( 1 − P / P c ) 1 / J was developed (based on the generalized mixture rule (GMR)), to describe the porosity dependence of Young's modulus for this type of carbide. The constants P c =0.8 and J =0.355 were determined by fitting the model to the measured values. The relationship between the micro-hardness of the material and the microstructure of the pores was also investigated.
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Research context
OpenAlex topics: Advanced ceramic materials synthesis · Advanced materials and composites · MXene and MAX Phase Materials
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