Processing and properties of an all-oxide composite with a porous matrix

Fabrication and properties of 3D oxide fiber-reinforced Al2O3–SiO2–SiOC composites by a hybrid technique based on sol–gel and PIP process

“…For N440/ASS2 composites, the response is characterized by an initial linear portion, a load maximum followed by a precipitous drop to $ 70% of the maximum, and a gradually diminishing tail. The corresponding shear strength is 29.5 MPa, which is much higher than that of the composites fabricated by means of ceramic powder and liquid precursor [29,30]. The SBS response for N440/ASS4 composites differed markedly.…”

Low cost porous alumina with tailored gas permeability and mechanical properties prepared using rice husk and sucrose for filter applications

“…Higher permeability is obtained by increasing the volume fraction porosity, pore size, pore connectivity etc. [13][14][15][16] Also, higher porosity though increases permeability, usually reduces mechanical properties. Therefore, optimization between permeability and mechanical strength is a basic requirement for adequate operation of porous ceramics as a filter.…”

Preparation, characterization and luminescence properties of porous Si3N4 ceramics with Eu2O3 as sintering additive

“…Si 3 N 4 ceramics with high porosity is of interest for engineering applications, such as gas filter, separation membrane and catalyst support at high temperature [3][4][5]. However, because of the strong covalent bonding between silicon and nitrogen atoms, solid-state diffusion is very slow, which prevents the densification of the Si 3 N 4 during high-temperature treatment.…”