TY JOUR TI PRASEODYMIUM IMPACT UPON TEMPERATURE DEPENDENCE OF SPECIFIC HEAT AND THERMODYNAMIC FUNCTION CHANGES OF ALUMINUM ALLOY AZh2.18 KW aluminum alloy AZh2.18 KW praseodymium KW heat capacity KW temperature dependence KW enthalpy KW entropy KW Gibbs energy JO Bulletin of Bryansk state technical university AU Esanov, N.R. AU Ganiev, I.N. AU Hakimov, A.H. PY 2019 IS 2019 PB Bryansk State Technical University