Fabrication of three-dimensional SiC ceramic microstructures with near-zero shrinkage via dual crosslinking induced stereolithography

Abstract

Three-dimensional SiC ceramic microstructures with near-zero shrinkage were fabricated from a simple inorganic polymer mixture by inducing dual photocuring routes to produce highly dense polymer features by stereolithography and subsequent pyrolysis at 600 degrees C.

A simple and tailor‐made fabrication of porous silicon carbide from functionalized kraft pulp paper

“…Finally, the Karstedt catalyst was added to the preceramic polymer for two main goals: to crosslink the structure of the SMP‐10 by a hydrosilylation reaction, then to improve the ceramic yield; or/and, to make Si–C covalent bonds between the SMP‐10 and the lignocellulosic material regarding 2 pc . Indeed, the pendant alkyne groups (–C≡CH) of the propargylated KPP 2 and the hydrogenosilane functional groups (Si–H) of the preceramic polymer could be the seat of a hydrosilylation reaction .…”

Enhanced Boiling Heat Transfer Performance on Microstructured Silicate Glass Surfaces Derived from Inorganic Polymer‐Based Soft Lithography

“…[ 22,23 ] Si-based preceramic resin has been known for precursors of nonoxide ceramics such as SiC and Si 3 N 4 under high temperature pyrolysis. [ 24,25 ] Recently, mild conversion process to oxide ceramics such as SiO 2 and SiCxOy phase was reported by room temperature hydrolysis of the consolidated preceramic polymers. [ 26 ] Therefore, it is appeared that a viscous allylhybridopolycarbosilane (AHPCS) polymer as a precursor of hydrophilic silicate glass is suitable for heat transfer applications since the heat and solvent resistance could be attained by step-wise crosslinking consolidation and hydrolysis steps.…”

“…[ 26 ] Therefore, it is appeared that a viscous allylhybridopolycarbosilane (AHPCS) polymer as a precursor of hydrophilic silicate glass is suitable for heat transfer applications since the heat and solvent resistance could be attained by step-wise crosslinking consolidation and hydrolysis steps. [ 25,26 ] In addition, the AHPCS precursor is readily compatible with various micromolding and printing techniques to fabricate the 2D and 3D ceramic microstructural features on various substrates. [ 24,27,28 ] Herein, we develop the fabrication method of oxide ceramic like micropillar structures by inorganic polymer-based soft lithography and subsequent hydrolysis step to demonstrate effi cient performance of boiling heat transfer surface.…”

Synthesis of SiFeC Magnetoceramics from Reverse Polycarbosilane‐Based Microemulsions

“…S YNTHESIS of ceramics by the thermal decomposition of polymeric precursors, named polymer-derived ceramics (PDCs), has attracted recent attentions extensively. [1][2][3][4][5][6][7][8][9][10][11] In comparison with the conventional powder-based ceramic processing, the PDC method offers many important advantages. For example, the structures, compositions, and properties of PDCs can be tailored at atomic, molecular, and nanoscales by changing the chemistries of precursors.…”

“…S ynthesis of ceramics by the thermal decomposition of polymeric precursors, named polymer‐derived ceramics (PDCs), has attracted recent attentions extensively 1–11 . In comparison with the conventional powder‐based ceramic processing, the PDC method offers many important advantages.…”