Effect of waste B4C addition on high closed-pore porosity foamed ceramics

Strengthening and toughening of CNTs‐reinforced B4C‐SiC ceramic composite material via spark plasma sintering

“…The flexural strength was obtained by the three-point bending method, and the multifunctional benchtop tester was used for testing, the loading rate was .5 mm/min, and the flexural strength was calculated according to formula (2).…”

“…Therefore, it has been widely used in nuclear energy (control rods, safety rods), military bulletproofing (bulletproof armor), and aerospace (gyroscopes) fields. 1,2 However, pure B 4 C ceramics have problems such as poor strength, fracture toughness and low relative density, which have become significant factors restricting its widespread application. 3,4 To improve the mechanical properties and the relative density, method such as introducing phases like TiB 2 , SiC and other reinforcement phases is commonly used to achieve this goal.…”

“…Boron carbide (B 4 C) ceramics have advantages such as high hardness, low density, and excellent chemical stability, making it a very promising structural ceramic material. Therefore, it has been widely used in nuclear energy (control rods, safety rods), military bulletproofing (bulletproof armor), and aerospace (gyroscopes) fields 1,2 . However, pure B 4 C ceramics have problems such as poor strength, fracture toughness and low relative density, which have become significant factors restricting its widespread application 3,4 …”

Preparation of foamed ceramics from steel slag with high calcium and iron content

“…The foaming method is characterized by the fact that the pore structure of the porous product is almost identical to that of the foam used in the precursor. High temperature foaming method is a method of dispersing high temperature foaming agent in the green body in advance, using the gas generated by high temperature decomposition of foaming agent, and forming foam structure with closed pores through cooling and curing 5 . The preparation process of high temperature melt direct foaming method is simple.…”

“…High temperature foaming method is a method of dispersing high temperature foaming agent in the green body in advance, using the gas generated by high temperature decomposition of foaming agent, and forming foam structure with closed pores through cooling and curing. 5 The preparation process of high temperature melt direct foaming method is simple. The specimens have the advantages of low bulk density, high porosity, and good mechanical properties.…”