solid solution

Сhemical synthesis of solid solutions of mercury sulfide-selenide films in the presence of sodium tartrate

Solid solutions films of mercury sulfide-selenide (HgS1–xSex) were synthesized on glass substrates by the chemical bath deposition method. Theoretical calculations of the boundary conditions for the HgS and HgSe formation in the mercury-tartrate-thiourea-selenosulfate system were made. The boundary conditions of HgS1–xSex were defined by the overlap area between the constructed HgS and HgSe formation zones. The X-ray diffraction and elemental analysis showed that the obtained films are single-phase and consist of HgS1–xSex substitutional solid solutions in zincblende modification.

New Solid-Solutions of Substitution Strontium (Sr) for Lead (Pb) in Apatite Structure

Strontium substitution for lead in $\mathrm{Pb}_{(8-x)} \mathrm{Sr}_x \mathrm{Na}_2\left(\mathrm{PO}_4\right)_6$ was analyzed using XRD, SEM, and Rietveld refinement techniques. All samples were synthesized using ceramic and semi-ceramic technologies. Pure apatite was formed in the composition from $x=0.00$ up to $x=2.75$. The results indicate that the samples’ collected compositions agree with the values calculated.

Point Defects and Physico-Chemical Properties of Crystals in Pb-Bi-Te System

Within crystalquasichemical formalism models of point defects of crystals in the Pb-Bi-Te system have been specified considering the amphoteric action of impurities in bismuth doped lead telluride PbTe:Bi, and solid solution formation mechanisms for РbТе-ВіТе and РbТе-Ві2Те3 have been examined. Dependences of Hall concentration and the concentration of point defects on the composition and the initial deviation from stoichiometry in the basic matrix have been calculated.