Výsledky vyhledávání - "Joon Hyung Lee"

Akademický článek

Oxygen migration energy in La and Y Co-doped CeO2: Effect of lattice constant and grain boundary segregation

Autor: Ho-Chang Lee, Dokyum Kim, Jung-A Lee, Young-Woo Heo, Jeong-Joo Kim, Joon-Hyung Lee

Publikováno v: Journal of Science: Advanced Materials and Devices, Vol 7, Iss 3, Pp 100450- (2022)

The transfer energy of oxygen vacancy of La and Y co-doped CeO2 is investigated in which the total amount of La and Y is fixed at 20 at%. Although both the La3+ (1.16 Å) and Y3+ (1.032 Å) ions are larger than the Ce4+ ions (0.97 Å), individual sin

Externí odkaz: https://doaj.org/article/4d5ff105638a43fa9625dbedb84f4a90

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Akademický článek

Effects of the Sn4+ Substitution and the Sintering Additives on the Sintering Behavior and Electrical Properties of PLZT

Autor: Jeoung-Sik Choi, Dong-Chul Kim, Hyo-Soon Shin, Dong-Hun Yeo, Joon-Hyung Lee

Publikováno v: Applied Sciences, Vol 12, Iss 5, p 2591 (2022)

(Pb, La)(Zr, Ti)O3 (PLZT) with antiferroelectric properties can be applied as a capacitor whose capacitance increases in a high electric field. From this, we obtained a high sintering density at 950 °C by adding low-temperature sintering additives,

Externí odkaz: https://doaj.org/article/1b0bc0cbc59c42d78508603df663c284

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