Zobrazeno 1 - 9
of 9
pro vyhledávání: '"Myong Chuel Chun"'
Autor:
Im Gyu Yeo, Soon-Ku Hong, Tai Hee Eun, Han Suk Seo, Seung Seok Lee, Jang Yul Kim, Myong Chuel Chun
Publikováno v:
Materials Science Forum. 1004:51-56
We investigated the relation between the nucleation of dislocations and the lattice misfits by nitrogen concentration difference between seed and grown crystal during the initial stage of growth. 4H-SiC single crystals were grown with various nitroge
Publikováno v:
Materials Science Forum. 963:64-67
The generation and transformation of dislocations in 4H-SiC crystals grown by PVT were investigated. Experiments were carried out in two stages for more comprehensive observation on dislocation behaviors. For the first stage known as initial growth,
Autor:
Won-Jae Lee, Hee Jun Lee, Im Gyu Yeo, Hwang Ju Kim, Jung Gon Kim, Hee Won Shin, Donghoon Lee, Mi Seon Park, Si Hyun Lee, Myong Chuel Chun, Yeon Suk Jang
Publikováno v:
Materials Science Forum. 858:113-116
The present research is focused to investigate a role of the porous graphite (PG) plate that could improve the quality of 4H-SiC crystal. The grown crystal in porous graphite inserted crucible showed the lower intensity of Al, B and Ti impurity conce
Autor:
Myong Chuel Chun, Jung Young Jung, Im Gyu Yeo, Heung Rak Kim, Doe Hyung Lee, Sang Il Lee, Mi Seon Park, Hee Tae Lee, Won-Jae Lee, Soon-Ku Hong
Publikováno v:
Materials Science Forum. :11-14
SiC crystal ingots were grown on 6H-SiC dual-seed crystal with different surface properties by a PVT (Physical Vapor Transport) technique. And then SiC crystal wafers sliced from the SiC ingots were systematically investigated in order to find out th
Autor:
Hee Tae Lee, Doe Hyung Lee, Jung Young Jung, Mi Seon Park, Soon-Ku Hong, Won-Jae Lee, Sang Il Lee, Myong Chuel Chun
Publikováno v:
Materials Science Forum. :77-80
The present research was focused to investigate the effect of internal crucible design that influenced the 4H-SiC crystal growth onto a 6H-SiC seed by PVT method. The crucible design was modified to produce a uniform radial temperature gradient in th
Autor:
Jong-Hwi Park, Mi-Seon Park, Im-Gyu Yeo, Seung-Seok Lee, Won-Jae Lee, Sang-Il Lee, Myong-Chuel Chun, Woo Sung Yang, Byoung-Chul Shin, Tai-Hee Eun, Jung-Young Jung
Publikováno v:
Journal of the Korean Physical Society. 59:448-451
Autor:
Heui Bum Ryu, Tae Woo Lee, Mi Seon Park, Byoung Chul Shin, Seung Seok Lee, Park Jong Hwi, Woo Sung Yang, Tai Hee Eun, Won-Jae Lee, Il Soo Kim, Im Gyu Yeo, Myong Chuel Chun
Publikováno v:
Materials Science Forum. :40-43
Extensive study of various process parameters to influence on the growth of 4H-SiC crystal has been carried out using the transformation of the 6H-SiC seed by a PVT method. The axial temperature gradients were increased throughout increasing the cruc
Autor:
Seung Seok Lee, Won Jae Lee, Park Jong Hwi, Im Gyu Yeo, Il Soo Kim, Myong Chuel Chun, Tai Hee Eun, Woo Sung Yang, Tae Woo Lee, Heui Bum Ryu, Byoung Chul Shin, Mi Seon Park
Publikováno v:
Materials Science Forum. :44-47
The single crystal ingots by using a sublimation technique were grown on 6H-SiC dual-seed crystals with opposite face polarities and then SiC crystal wafers sliced from the SiC ingot were systematically investigated to find out the polarity dependenc
Publikováno v:
Solid State Ionics. 131:221-228
La 0.9 Ba 0.1 Ga 0.8 Mg 0.2 O 3− δ , an alternative electrolyte candidate for the ceramic fuel cell, exhibits an oxygen ion conductivity higher than 0.1 S/cm at 800°C. The maximum power density of the single cell Ni/electrolyte composite anode/La