Novel freeze-casting fabrication of aligned lamellar porous alumina with a centrosymmetric structure

Reproducibility of ZrO2-based freeze casting for biomaterials

“…The recent example of magnetic freeze casting [25][26][27] provides control of the microstructure in multiple orthogonal directions through both the ice crystal growth and an applied magnetic field (oriented perpendicular to the ice growth during the freezing process). Additionally, scaffolds with a centrosymmetric structure have been reported that employ two cold sources oriented at perpendicular directions, thus inducing two ice growth directions [28]. Additional research into methods such as these that provide control in multiple directions may provide more reproducible microstructures and properties.…”

Porous ceramic materials by pore-forming agent method: An intermingled fractal units analysis and procedure to predict thermal conductivity

“…These materials often present low, fixed, and well defined thermal conductivity figures. Many different processes, have been reported in the literature in order to obtain porous ceramics [1,2]: gelcasting process [3,4], organic foam technique [5], freeze casting method [6][7][8] and pore-forming agent method [9,10]. The latter is able to yield high porosity ceramics.…”

Biotemplated fabrication of porous alumina ceramics with controllable pore size using bioactive yeast as pore-forming agent

“…Up to now, many manufacturing processes have been applied to prepare porous alumina ceramics, such as partial sintering method [4], sol-gel synthesis [5,6], freeze-casting method [7,8], organic foam method [9] and pore-forming agent method [10][11][12][13][14][15][16]. Among these techniques, pore-forming agent method is the most widely used and effective technique.…”