Thermal conductivity of the SiC/Si biomorphic composite, a new cellular ecoceramic

Thermal Conductivity of Porous Silicon Carbide Derived from Wood Precursors

“…A recent area of interest in ceramic research is biomorphic silicon carbide (bioSiC), a novel porous material derived from wood precursors 1–17 . The natural wood is pyrolyzed, which yields a carbon (C) scaffold that retains the initial wood microstructure.…”

“…(1) Silicon Carbide (SiC) Derived from Wood A RECENT area of interest in ceramic research is biomorphic silicon carbide (bioSiC), a novel porous material derived from wood precursors. [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17] The natural wood is pyrolyzed, which yields a carbon (C) scaffold that retains the initial wood microstructure. SiC results from the subsequent silicon (Si) infiltration of the C scaffold.…”

“…11 Thus far, the mechanical properties of bioSiC have been a primary research focus. 2,[4][5][6][7]9,14,16,17 Although the thermal properties of a bioSiC/ Si composite derived from white eucalyptus wood have been determined for the temperature range 5-300 K, 15 the thermal conductivity of bioSiC without excess Si had not yet been studied. In addition, the thermal conductivity had not been measured previously at temperatures much greater than room temperature.…”

Developing biocomposites as scaffolds in regenerative medicine

“…Preliminary investigation on ceramization processes of native wood structures has led to the development of porous bodies in silicon carbide (Esposito et al, 2004;Greil et al, 1998aGreil et al, , 1998bGreil et al, , 2001Sieber et al, 2000Sieber et al, , 2002 by wood pyrolysis and subsequent infi ltration with melted silicon; BioSiC ® technology was also developed Gonzalez et al, 2004;Kardashev et al, 2005;Parfen'eva et al, 2005) with similar technology, to manufacture porous bioinert compatible ceramic bodies, characterized by excellent mechanical performances and morphology very well resembling the graded morphology of cortical-spongy human bone.…”

X-ray micro-computed tomography of beech wood and biomorphic C, SiC and Al/SiC composites

“…Several detailed studies of SiC describe the initial wood pyrolysis process [13,14] and the reaction-formation of the SiC [15,16], which develops in a fashion similar to that described in literature regarding reaction-bonded Si/SiC composites [17,18]. Properties of both the Si/SiC composites [19,20] and porous SiC [21][22][23] have also been examined in detail to quantify the effect of precursor choice, testing temperature and orientation.…”