Abstract: The disclose relates to ordered Alloy 690 comprising: a matrix that includes a short range order (SRO) in a state in which nickel (Ni) is enriched, and chromium (Cr) and iron (Fe) are depleted, and the ordered Alloy 690 is characterized by having excellent resistance to stress corrosion cracking and improved thermal conductivity due to agglomeration of nickel (Ni) atoms, as compared with the unordered Alloy 690.
Type:
Grant
Filed:
May 9, 2019
Date of Patent:
September 1, 2020
Assignee:
KOREA ATOMIC ENERGY RESEARCH INSITUTE
Inventors:
Young-Suk Kim, Sung-Soo Kim, Dae-Whan Kim
Abstract: The invention concerns a high coulomb transfer switch useful for high current pulse supplies, employing a self-bouncing arc mechanism, wherein two cylindrical electrodes are coaxially arranged and the pathway of current inside the switch is specially designed such that arc current sheet positioned between the coaxially arranged electrodes makes a self bouncing movement in an axial and/or circumferential direction. The self-bouncing arc switch according to the present invention makes it possible to maximize the working area of the electrodes, thereby spread arc energy effectively over the electrodes.
Type:
Grant
Filed:
June 29, 2001
Date of Patent:
February 15, 2005
Assignee:
Korea Atomic Energy Research Insitute
Inventors:
Kwang Won Lee, Seung Ho Jeong, Young Dug Bae