Effect of processing parameters on the development of anisotropic α-Al2O3 platelets during molten salt synthesis

Bioinspired High Tolerant Vein–Membrane Al2O3 Coating

“…[ 33,40 ] Although Al 2 O 3 platelets can be fabricated by mixing crystal seeds with Al 2 O 3 powder or raw materials, each platelet grows independently and cannot form a highly textured vein network. [ 37 ] Here, the crystal seeds were on the substrate rather than in the coating (Figure 1b). This design is inspired by plant seeds and serves three purposes.…”

“…Combined with the high aspect ratio of Al 2 O 3 platelets, the growth rate of the (001) plane was the slowest, consistent with the Al 2 O 3 platelets obtained by the molten salt method. [ 37 ] The slower‐growing planes are retained at the ends, whereas the faster‐growing planes gradually become smaller until they disappear, forming highly anisotropic Al 2 O 3 platelets throughout the growth process. [ 33,40 ] TGO–Cr 2 O 3 has the same crystal structure as Al 2 O 3 platelets, which not only accelerates the growth of Al 2 O 3 platelets, but also improves their orientation.…”

“…However, the growth direction of in situ Al 2 O 3 platelets prepared by thermal growth method is uncontrollable, and they cannot form texture structures resembling vein networks in specific materials or structures. [ 11,33–37 ]…”

Synthesis of Thorium Dioxide Nanocrystals via Molten Salt Thermal Decomposition for Nuclear Energy-Related Applications

“…The MSS method avoids the high activation energy barrier of the ion solvation process in traditional liquid phase routes and effectively reduces the stability of ionic and covalent bonds in the precursor material through intense polarization; this affords the rapid synthesis of the target product under mild conditions. 20,21,23 Although some researchers have reported the synthesis of metal-oxide NCs via MSS, 21,22,24 the synthesis of ThO 2 NCs by MSS has not yet been reported.…”

“…Compared with the traditional liquid phase route, the molten salt synthesis (MSS) method offers a larger and considerably wider operating temperature window and has been applied for synthesizing various oxide and nonoxide nanomaterials. − Therefore, it has become an excellent bottom-up synthetic route for realizing nanomaterials of various chemical compositions and sizes. The MSS method avoids the high activation energy barrier of the ion solvation process in traditional liquid phase routes and effectively reduces the stability of ionic and covalent bonds in the precursor material through intense polarization; this affords the rapid synthesis of the target product under mild conditions. ,, Although some researchers have reported the synthesis of metal-oxide NCs via MSS, ,, the synthesis of ThO 2 NCs by MSS has not yet been reported.…”