Porous anorthite ceramics with ultra-low thermal conductivity

Preparation, microstructure and high temperature performances of porous γ-Y2Si2O7 by in situ foam-gelcasting using gelatin

“…The experimental data are in good agreement with the universal model, which was first proposed by Brailsford and Major [48] and then summarized by Wang [47]. The universal model has been proven to be reasonable and sound in many studies [49][50][51]. According to previous studies, the five basic models may be derived from a universal equation by selecting appropriate values for d i and k 0 : where K e is the effective thermal conductivity of a porous material; and k and v are the thermal conductivity and volume fraction of the component of sample, respectively.…”

Reaction sintering of kaolin-natural phosphate mixtures

“…According to the literature [4,[25][26], the micrograph corresponding to 20K sample shows very high HAp grains with elongated forms (Fig. 3(a)).…”

Porous Nano-SiC as Thermal Insulator: Wisdom on Balancing Thermal Stability, High Strength and Low Thermal Conductivity

“…Ceramic foams will be one of the possible solutions because of the merits of low thermal conductivity and good thermal shock resistance. [3,4] However, increasing the porosity will greatly sacrifice mechanical strength. Therefore, new mechanisms are required to balance the thermal stability, high strength and low thermal conductivity of porous SiC.…”