Zobrazeno 1 - 10
of 294
pro vyhledávání: '"Suk Joong L. Kang"'
Autor:
Suk-Joong L. Kang, John G. Fisher
Publikováno v:
Open Ceramics, Vol 16, Iss , Pp 100484- (2023)
This paper suggests future research directions in grain growth and related subjects. A discussion on the available mechanisms of grain growth has led to an emphasis on the mixed control mechanism of boundary migration and grain growth. The mixed cont
Externí odkaz:
https://doaj.org/article/70902fda5ee24afd9f63a132096cd5ae
Autor:
Hye-In Yoon, Dong-Kyu Lee, Hyung Bin Bae, Gi-Young Jo, Hee-Suk Chung, Jin-Gyu Kim, Suk-Joong L. Kang, Sung-Yoon Chung
Publikováno v:
Nature Communications, Vol 8, Iss 1, Pp 1-8 (2017)
Space-charges in polycrystalline materials can drive segregation of dopants, however an in-depth understanding of this process is still missing. Here, the authors show that in polycrystalline perovskites the space-charge segregation and interfacial s
Externí odkaz:
https://doaj.org/article/21296e997bd04eed86b1a600d1ac3cca
Autor:
Haribabu Palneedi, Venkateswarlu Annapureddy, Ho-Yong Lee, Jong-Jin Choi, Si-Young Choi, Sung-Yoon Chung, Suk-Joong L. Kang, Jungho Ryu
Publikováno v:
Journal of Asian Ceramic Societies, Vol 5, Iss 1, Pp 36-41 (2017)
Aimed at developing lead-free magnetoelectric (ME) composites with performances as good as lead (Pb)-based ones, this study employed (001) and (011) oriented 82BaTiO3-10BaZrO3-8CaTiO3 (BZT–BCT) piezoelectric single crystals, fabricated by the cost-
Externí odkaz:
https://doaj.org/article/ed8d4652fc3c4919b23eb4adcabbded0
Autor:
Suk-Joong L. Kang
Sintering is the process of forming materials and components from a powder under the action of thermal energy. It is a key materials science subject: most ceramic materials and many specialist metal powder products for use in key industries such as e
Autor:
Suk-Joong L. Kang
Publikováno v:
Materials, Vol 13, Iss 16, p 3578 (2020)
To fully densify a powder compact, we should avoid two things: (i) entrapment of insoluble gases within pores and (ii) entrapment of isolated pores within grains. This paper describes general directions for promoting full densification in view of the
Externí odkaz:
https://doaj.org/article/ae5d78e5c65248b8aa47a5c463730cfa
Publikováno v:
Materials, Vol 13, Iss 6, p 1344 (2020)
The grain growth behavior of 0.95(Na0.5Bi0.5)TiO3 −0.05BaTiO3 (mole fraction, NBT−5BT) grains was investigated with excess Bi2O3 addition. The powder compacts of NBT−5BT were sintered at 1200 °C for various sintering times and with various amo
Externí odkaz:
https://doaj.org/article/81a175c3cf8e4ffebed14c21597c10c7
Autor:
Ji-Hoon Park, Suk-Joong L. Kang
Publikováno v:
AIP Advances, Vol 6, Iss 1, Pp 015310-015310-6 (2016)
(94-x)(Na1/2Bi1/2)TiO3-6BaTiO3-x(K1/2Na1/2)NbO3 (NBT-6BT-xKNN) piezoelectric ceramics have notable potential for replacing lead containing piezoelectric ceramics in actuator applications due to their exceptionally large strain. However, a high electr
Externí odkaz:
https://doaj.org/article/f99b46af1ac74b0b9e30986de93faf22
Publikováno v:
Izvestiya Vuzov. Poroshkovaya Metallurgiya i Funktsional’nye Pokrytiya (Universitiesʹ Proceedings. Powder Metallurgy аnd Functional Coatings). :28-31
Major research challenges in the field of solid-state sintering are noted following the authors’ recent paper (J. Am. Ceram. Soc. 2017. Vol. 100. P. 2314–2352). They are highlighted in the areas of (i) modeling and simulation (mesoscale as well a
Publikováno v:
Materials Research Bulletin. 106:459-464
The relaxation dynamics of the polar nano-regions (PNRs) in the 0.78Na0.5Bi0.5TiO3-0.2SrTiO3-0.02BaTiO3 lead free ternary system over a wide temperature range (50–650 °C) is investigated using complex electric modulus formalism. The modulus spectr