Porous Ceramics Derived from Wood

The synthesis and microstructure of morph-genetic TiC/C ceramics

“…After TEOS hydrolysis, SiO 2 gel was reacted with charcoal at 1400°C in Ar to form a-SiC in the cellular wall. Greil et al [11][12][13][14][15] reported the study of converting the carbon template into porous SiC ceramic by a rapid liquid Si infiltration-reaction process at 1600°C. These approaches improved the mechanical properties such as compression and bending strength.…”

Fabricating Porous Ceramics

“…They cannot be prepared easily by conventional processing. Due to the special features endowed by the natural porous structure of these substances, wood ceramics are more attractive in filtration, catalysis, and membrane applications [95]. In order to transform the wood into ceramic, the carbonization process must be conducted and then ceramic processing must be applied.…”

“…Pyrolyzed pine and beech are infiltrated with SiO 2 colloidal sol, which occurs independent of the types of the colloidal sol but the pyrolysis treatment [95]. The SiC template is obtained by carbon pyrolysis, and the pore structures are maintained in the template.…”

Quantitative determination of ZrC in new ceramic materials by Fourier transform infrared spectroscopy

“…The inherent open porosity in the natural plant structures is accessible for gaseous or liquid infiltration and subsequent high-temperature ceramic phase formation. Previous work on biotemplating was mainly focused on the manufacturing of biomorphous SiC-based ceramics via a reaction of the biological material derived biocarbon with different Siinfiltrants such as Si-melt, Si/SiO-gas, Si-containing polymers as well as SiO 2 -sols [4][5][6]. During the last decade several investigations were also focused on the synthesis of biomorphic transition metal carbides (e.g.…”