Zobrazeno 1 - 10
of 56
pro vyhledávání: '"S. M. Lakiza"'
Publikováno v:
Vìsnik Odesʹkogo Nacìonalʹnogo Unìversitetu: Hìmìâ, Vol 23, Iss 3(67), Pp 50-57 (2018)
One of the main directions of the modern materials development science is the development of new oxide ceramic materials for engineering, energy, chemical, aerospace, electronic and other industries in multi component systems, including containing Ti
Externí odkaz:
https://doaj.org/article/ad6049ab117e470eba8638fb1c6582c7
Publikováno v:
Vìsnik Odesʹkogo Nacìonalʹnogo Unìversitetu: Hìmìâ, Vol 23, Iss 1(65), Pp 27-35 (2018)
Isothermal section of the Al2O3–TiO2–Nd2O3 phase diagram at 1400 °C is constructed for the first time. It is the part of systematic investigations of Al2O3–TiO2–Ln2O3 (Ln=lanthanides,Y) systems. The 1400°C was taken as the temperature, at w
Externí odkaz:
https://doaj.org/article/a9aa7da9c0454e52ad944aa4bbb8bf29
Publikováno v:
Vìsnik Odesʹkogo Nacìonalʹnogo Unìversitetu: Hìmìâ, Vol 22, Iss 4(64), Pp 94-100 (2017)
The aim of this investigation is the construction of isothermal sections for the Al2O3-TiO2-Y(Gd)2O3 phase diagrams at 1400ºС as part of systematic investigations of Al2O3-TiO2-Ln2O3 (Ln=lanthanides, Y) systems. The 1400°C was taken as the tempera
Externí odkaz:
https://doaj.org/article/c2adeef114d4408ab55dac42fc896a91
Autor:
O. V. Dudnik, S. M. Lakiza, M. I. Grechanyuk, V. P. Red’ko, I. O. Marek, A. O. Makudera, V. B. Shmibelsky, O. K. Ruban
Publikováno v:
Powder Metallurgy and Metal Ceramics. 61:441-450
Autor:
A. O. Makudera, S. M. Lakiza
Publikováno v:
Uspihi materialoznavstva. 2021:72-78
Based on the analysis of literature data from experimentally constructed phase diagrams of Y2O3 − Ln2O3 systems (Ln = Tb − Lu), as well as temperatures of polymorphic transformations of rare earth oxides (REE), tentative phase diagrams of Y2O3
Autor:
O. V. Dudnik, Ja.S. Tyshchenko, O. K. Ruban, S. M. Lakiza, A.O. Makudera, V. P. Red’ko, M.I. Hrechanyuk
Publikováno v:
Powder Metallurgy and Metal Ceramics. 60:78-89
The world’s experience in using hafnium in two important parts of high-temperature thermal barrier coatings, such as the top thermal barrier layer and bond coat layer, was analyzed. In the top thermal barrier layer, hafnium is present as HfO2 compl
Autor:
V.P. Red’ko, I.M. Grechanyuk, M.I. Grechanyuk, O. V. Dudnik, I.O. Marek, M.S. Glabay, A.A. Makudera, S. M. Lakiza, A. K. Ruban
Publikováno v:
Powder Metallurgy and Metal Ceramics. 59:672-680
The use of compositionally complex ZrO2-based ceramics doped with a mixture of yttrium-subgroup rare-earth metal (REM) oxides for the deposition of thermal barrier coatings (TBCs) was studied. For research, a heavy concentrate (HC) of yttrium-subgrou
Autor:
V.P. Red’ko, O. V. Dudnik, I.O. Marek, I.M. Grechanyuk, S. M. Lakiza, M.S. Glabay, V.B. Shmibelsky, M.I. Grechanyuk, A. K. Ruban
Publikováno v:
Powder Metallurgy and Metal Ceramics. 59:556-563
Current studies of ceramic topcoat materials for thermal barrier coatings (TBCs) of next generation focus mainly on ternary, quaternary, and more complex oxide systems. The use of high-entropy ZrO2-based ceramics doped with a mixture of rare-earth me
Publikováno v:
Powder Metallurgy and Metal Ceramics. 57:336-343
The isobar heat capacity of Gd2Hf2O7 is studied for the first time by adiabatic calorimetry in the range 80–298.15 K. It is shown that Cp of gadolinium hafnate changes monotonically and no anomalies are observed. The temperature dependences of the
Publikováno v:
Powder Metallurgy and Metal Ceramics. 56:697-706
Lanthanum hafnate La2Hf2O7 was produced chemically by inverse precipitation from ammonia solution and a mixture of La and Hf nitrates, followed by hydroxide decomposition at 1250°C in air and melting of the oxide mixture in a solar furnace. The form