Full text loading...
(a) Powder XRD pattern of glassy sanbornite subjected to isothermal heat treatment at for 1 h. Crystallographic data of Ref. 17 and Ref. 18 are also included. (b) TEM image of the sample treated at for 1 h and its SAED pattern. Dashed circle in the TEM image corresponds to the selected area . Dotted and dashed lines correspond to and phases, respectively.
Crystal structures of (a) , (b) , (c) , and (d) . Spheres and wire-frame correspond to NM ions and NF linkage, i.e., (blue-red tetrapod), respectively. In the case of , , the octahedral unit is included in the framework (yellow-red hexapod).
Glass composition, nucleation tendency, crystallizing phases, and their structures in silicate glasses reported thus far. Fragility indexes, , by Nascimento and Aparicio are also included.
Article metrics loading...