Preparation, characterization and discussion of glass ceramic foam material: Analysis of glass phase, fractal dimension and self-foaming mechanism

Fabrication and application of porous materials made from coal gangue: A review

“…Combined with the characteristics of low cost, excellent comprehensive performance, and environmental friendliness, the new CG-based glass-ceramic foams could be used as non-load-bearing wall energy-saving insulation materials. As shown in Figure 9, Liu et al 97 also successfully prepared glass-ceramic foams with low density (.67 g/cm 3 ), high porosity (74.9%), and high F I G U R E 9 Scheme of the new glass-ceramic foam preparation process. 97 The pore structure of foam with various silica sand content (A)-10wt% (B)-20wt% (C)-30wt% after binarization treatment; The relationship of fractal dimension and porosity (A) compressive strength (B) and mean size (C).…”

“…As shown in Figure 9, Liu et al 97 also successfully prepared glass-ceramic foams with low density (.67 g/cm 3 ), high porosity (74.9%), and high F I G U R E 9 Scheme of the new glass-ceramic foam preparation process. 97 The pore structure of foam with various silica sand content (A)-10wt% (B)-20wt% (C)-30wt% after binarization treatment; The relationship of fractal dimension and porosity (A) compressive strength (B) and mean size (C). And the ternary plot of CaO-Al2O3-SiO2 (D).…”

“…Typical methods for preparing CG-based porous ceramics are shown in Figure 6, including the pore-forming additive method, 87,88 template method, 27,89 solid-phase reaction method, 90 and polymeric sponge impregnation method, 45 and the components of ceramics produced include mullite, 87,90-95 cordierite, 45 and others. [96][97][98] Table 2 compares several methods of synthesizing porous ceramics with CG as the raw material. According to Table 2, the porosity and properties of the materials obtained by different methods were various.…”

Preparation and properties of ferrimagnetic glass–ceramic foams based on pyrite slag

“…Compared with a glass foam, the glass phase of glass–ceramic can encapsulate gas phase to form a porous structure at high temperature and the ceramic phase is the frame structure of these materials. The preparation process of glass–ceramic foam is simple because it belongs to a partially vitrified ceramic foam material 19 . The glass–ceramic foam prepared has the characteristics of high porosity, low density, high compressive strength, and low thermal conductivity, 20,21 such as a porosity of 69.76%–75.43%, a bulk density of .55–.69 g/cm 3 , a compressive strength of 3.2–5.35 MPa, and a thermal conductivity of .10–.21 W/(m K) 22 …”

“…The preparation process of glass-ceramic foam is simple because it belongs to a partially vitrified ceramic foam material. 19 The glassceramic foam prepared has the characteristics of high porosity, low density, high compressive strength, and low thermal conductivity, 20,21 such as a porosity of 69.76%-75.43%, a bulk density of .55-.69 g/cm 3 , a compressive strength of 3.2-5. 35 MPa, and a thermal conductivity of .10-.21 W/(m K).…”