T. Morawskakowal et al., PRECIPITATION OF NICKEL DIHALIDE IN THERMALLY PRETREATED NACL-NI2+ CRYSTALS, Acta Physica Polonica. A, 86(3), 1994, pp. 363-368
Optical absorption and the yield stress value of NaCl:Ni2+ crystals we
re measured as functions of the annealing temperature. Morphology and
possible structure types of the NiCl2 particles formed under different
annealing conditions have been shortly discussed.