Tensimetric investigation of silicon nitride films

Thermodynamic properties of samarium and gadolinium polyselenides

“…The schematic diagram of the experimental setup, main characteristics of the experimental unit and the procedure of operation were described in more detail in our previous works [17,[20][21][22][23][24].…”

“…The selenium vapor pressure has been measured by the static method with quartz membrane-gauge manometers [19] using an isothermic [20] and anisothermic [21,22] procedure. The schematic diagram of the experimental setup, main characteristics of the experimental unit and the procedure of operation were described in more detail in our previous works [17,[20][21][22][23][24].…”

Thermodynamic investigation of the phase formation processes in the systems LnSe2–LnSe1.5 (Ln=La, Ce, Pr, Nd)

“…Since the experiments are performed in the closed volume, the static method does not restrict by time of equilibrium achievement and supplies with reliable quantitative information (p-T-x) even if the process goes very slowly. The main characteristics of the experimental unit and the procedure of operation were described in more detail in our previous works [15][16][17][18]. The limiting errors in values of pressure, temperature and solid phase composition were 133 Pa, 1 K and 0.01 formula units, accordingly.…”

“…Anisothermic procedure [16,17] means keeping quartz membrane at constant temperature (973 K) during the whole experiment. This procedure prevents the diffusion gases through the membrane and the loss of its elastic properties at the temperatures more than 1000 K. This method has some real advantages.…”

“…The vapour pressure measurement has been realized by the static method with quartz membrane-gauge manometers [14] using an isothermic [15] and anisothermic [16,17] procedure.…”