Zobrazeno 1 - 10
of 312
pro vyhledávání: '"Sung-Hyuk Park"'
Publikováno v:
Materials, Vol 15, Iss 18, p 6191 (2022)
In additive manufacturing (AM), the powder properties and laser powder bed fusion (LPBF) process parameters influence the quality of materials and building parts. However, the relationship between the size of the powder, LPBF process parameters, and
Externí odkaz:
https://doaj.org/article/14fa42d1e84d42539ae6ff88552b07c4
Publikováno v:
Journal of Materials Research and Technology, Vol 32, Iss , Pp 2691-2704 (2024)
The Directed Energy Deposition (DED) method, which utilizes metal powder and a high-powder laser directed at specific locations on a substrate, is employed across various fields for repairing and refurbishing existing parts. In this study, two types
Externí odkaz:
https://doaj.org/article/901cc715e3e54fe6b4e714f2a2db05eb
Autor:
Gi Baek Nam, Jung-El Ryu, Tae Hoon Eom, Seung Ju Kim, Jun Min Suh, Seungmin Lee, Sungkyun Choi, Cheon Woo Moon, Seon Ju Park, Soo Min Lee, Byungsoo Kim, Sung Hyuk Park, Jin Wook Yang, Sangjin Min, Sohyeon Park, Sung Hwan Cho, Hyuk Jin Kim, Sang Eon Jun, Tae Hyung Lee, Yeong Jae Kim, Jae Young Kim, Young Joon Hong, Jong-In Shim, Hyung-Gi Byun, Yongjo Park, Inkyu Park, Sang-Wan Ryu, Ho Won Jang
Publikováno v:
Nano-Micro Letters, Vol 16, Iss 1, Pp 1-17 (2024)
Highlights Blue micro-light-emitting diodes (μLED)-integrated gas sensors were fabricated as monolithic structure by directly loading sensing materials onto the μLED. SnO2 nanoparticles are activated by blue μLED and exhibit outstanding sensitivit
Externí odkaz:
https://doaj.org/article/f4f017893d1e4382838ca608a3dfb65d
Publikováno v:
Journal of Materials Research and Technology, Vol 31, Iss , Pp 4019-4028 (2024)
This study investigates the influence of extrusion conditions on the microstructure and tensile properties of Mg–6Al–0.3Mn–0.3Ca–0.2Y (SEN6) alloy, which is processed at various extrusion temperatures and ratios. An increase in both the extru
Externí odkaz:
https://doaj.org/article/1b9bf0e2717a4b789d73c34cc8818bbc
Autor:
Jong Un Lee, Hyun Ji Kim, Sang-Cheol Jin, Ye Jin Kim, Young Min Kim, Bong Sun You, Jun Ho Bae, Sung Hyuk Park
Publikováno v:
Journal of Magnesium and Alloys, Vol 12, Iss 3, Pp 841-872 (2024)
This review article provides overall understanding of stainless, environment-friendly, and nonflammable Mg alloys (SEN alloys) recently developed at the Korea Institute of Materials Science. SEN alloys are produced by adding small amounts of Ca and Y
Externí odkaz:
https://doaj.org/article/148059d397574ce88e4b8a3bdcf7f742
Publikováno v:
Journal of Materials Research and Technology, Vol 29, Iss , Pp 4806-4821 (2024)
Metal additive manufacturing (AM) has been applied in various fields because it allows the manufacture of parts with complex shapes. In this study, 316 L stainless steel specimens with 0 and 2 wt% Nb were fabricated using direct energy deposition, an
Externí odkaz:
https://doaj.org/article/d983848d7de647d1949d9463766b985c
Publikováno v:
Journal of Magnesium and Alloys, Vol 12, Iss 2, Pp 779-793 (2024)
This study investigates the effect of characteristics and distribution of Mg17Al12 precipitates on the uniaxial tensile and three-point bending properties of extruded Mg alloys containing high Al contents. The extruded Mg–9Al–1Zn–0.3Mn (AZ91) a
Externí odkaz:
https://doaj.org/article/847c0a2c3cab430b9840fac84aa27838
Publikováno v:
Journal of Magnesium and Alloys, Vol 12, Iss 1, Pp 186-196 (2024)
Mg alloys possess an inherent plastic anisotropy owing to the selective activation of deformation mechanisms depending on the loading condition. This characteristic results in a diverse range of flow curves that vary with a deformation condition. Thi
Externí odkaz:
https://doaj.org/article/8f73b9c3758348f6b6aabdd087adbcc1
Publikováno v:
Journal of Materials Research and Technology, Vol 28, Iss , Pp 4363-4369 (2024)
A recently developed Mg–5Bi–3Al (BA53, wt%) alloy exhibited remarkable extrudability despite its high alloying content. However, when subjected to high-speed extrusion with a die exit speed of 67 m/min, grain coarsening of recrystallized grains o
Externí odkaz:
https://doaj.org/article/b457e7957490404aadfea6c0c8818f6d
Autor:
Sung Hyuk Park, Yong Woon Lee, Da Eun Kim, Kyung Gook Cho, Min Su Kim, Dong Hyun Park, Junyoung Mun, Keun Hyung Lee
Publikováno v:
EcoMat, Vol 6, Iss 4, Pp n/a-n/a (2024)
Abstract Deformable lithium‐ion batteries (LIBs) can serve as the main power sources for flexible and wearable electronics owing to their high energy capacity, reliability, and durability. The pivotal role of cathodes in LIB performance necessitate
Externí odkaz:
https://doaj.org/article/3c04afcf5c8b4fdc9c623504f1ab11d7