Formation of SiC whiskers/leucite-based ceramic composites from low temperature hardening geopolymer

Preparation and mechanical performance of SiCw/geopolymer composites through direct ink writing

“…On one hand, the increase of whisker content will lead to the slurry viscosity increase, while the bubbles in the high viscosity slurry cannot be quickly discharged during extrusion and curing, which will lead to the overall porosity ($${\pi _a}$$) increase (as shown in Table 1) and decrease the mechanical properties of the 4SiC w /GP composite. On the other hand, when the whiskers content in the composite reaches about 4 wt.%, the whisker agglomeration will be intensified, 29,44 and the internal defects caused by whisker agglomeration will also lead to the decline of its mechanical properties.…”

“…26 Therefore, SiC w will be an appropriate candidate for re-enforcing the mechanical properties of ceramic material. 27,28 The results of He's 29 exploration of SiC w to enhance mechanical properties of metakaolin-based geopolymer showed that the addition of whiskers could significantly improve the mechanical properties of the composites and their ceramic products. Rahman et al 30 successfully fabricated SiC whiskers/fly ash-based geopolymer composites and reported that the high-temperature mechanical properties of the composites were two times higher than that of the pure geopolymer.…”

“…Therefore, SiC w will be an appropriate candidate for re‐enforcing the mechanical properties of ceramic material 27,28 . The results of He's 29 exploration of SiC w to enhance mechanical properties of metakaolin‐based geopolymer showed that the addition of whiskers could significantly improve the mechanical properties of the composites and their ceramic products. Rahman et al 30 .…”

Geopolymer Ceramic Application: A Review on Mix Design, Properties and Reinforcement Enhancement

“…A new type of building materials with improved strength, durability, and other qualities entered the market in the nineteenth and twentieth centuries [ 43 , 44 ]. Ceramic components can be made from a wide variety of metallic and non-metallic atom combinations, and each atom combination typically lends itself to a number of structural configurations [ 30 , 40 , 45 , 46 ]. To address the rising needs and requirements in a wide range of application fields, scientists were compelled to develop numerous novel ceramic materials.…”

“…The raw ceramic must be heated to a temperature below its melting point to be sintered. By removing the moisture and binder, fine ceramic products with high hardness and density are created by condensing the microscopic gaps between the particles and fusing them together [ 30 , 46 , 48 ]. The formulation of geopolymer materials for ceramic applications is shown in Table 1 .…”