Measurement and Analysis of Magnetic Properties of YBa2Cu3O7-y Bulk Superconductor

2020 ◽  
Vol 15 (1) ◽  
pp. 122-126
Author(s):  
Sang Heon Lee
Keyword(s):  
Magnetic Properties ◽  
High Temperature ◽  
Power Systems ◽  
Physical Properties ◽  
Seed Layer ◽  
High Temperature Superconductor ◽  
Magnetic Levitation ◽  
Ceramic Composites ◽  
Electromagnetic Properties ◽  
Measurement And Analysis

YBa2Cu3O7-y single crystal bulk high-temperature superconductor has high critical current density with large magnetic levitation and trapping magnetic forces. Despite its distinctive electromagnetic properties, the longtime heat treatment process of oxide high-temperature superconductor, a ceramic material, is widely considered as a factor that can degrade industrial applicability of superconductors seriously. For applications in power systems, metal-ceramic composites need to be fabricated to enhance magnetic performance. In this study, CeO2 was utilized as an additive to control Y211 particles and improve superconducting magnetic properties. The study achieved meaningful outcomes, given that it reduced the processing time by half (1/2) with the interior seeding technique, realized the effect of top seeding by positioning one additional seed layer on the top surface, and obtained a magnetic levitation force of 67.015 N. In order to improve the physical properties of superconducting materials, interior seeding technique was applied, and the effect of top seeding was obtained by placing one seed layer on the top surface. Therefore, when two seed layers were used to fabricate a specimen, it could improve physical properties of superconductors to the extent that both the top and bottom pellets could be used.

Magnetic properties of BiSrCaCu2Ox high-temperature superconductor

1989 ◽  
Vol 150 ◽  
pp. 39-45 ◽  
Author(s):  
S Zannella ◽  
A.M Ricca ◽  
V Ottoboni ◽  
G Ripamonti ◽  
F Bolzoni ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
High Temperature ◽  
High Temperature Superconductor

Overview of High Temperature Superconductor Machines

2021 ◽  
Vol 4 (4) ◽  
pp. 25-33
Author(s):  
Bruno Douine ◽  
◽  
Hocine Menana ◽  
Kevin Berger ◽  
Jean Lеvеque ◽  
...  
Keyword(s):  
High Temperature ◽  
Power Systems ◽  
High Temperature Superconductor ◽  
High Temperature Superconductors ◽  
Synchronous Machine ◽  
Recent Time ◽  
Operating Principle ◽  
Electrical Machines ◽  
Synchronous Machines ◽  
Ac Losses

Electrical machines are important parts of different power systems. The application of high temperature superconductors (HTS) in electrical machines is very promising due to high transport currents. This paper reviews various topologies of superconducting motors and generators using HTS published in the literature in recent time. It begins with a brief presentation of the HTS material used in electrical machines. The description of AC losses and cryogenic systems is done afterwards. Then we offer a striking description of the various realizations of HTS electrical machines such as half HTS synchronous machines, fully HTS synchronous machine, machines with HTS bulks and stacks. Some of these machines are totally innovative compared to conventional ones and their operating principle is strictly related to the presence of HTS materials.

Magnetic properties of the high-temperature superconductor R2Ba4Cu7O15− (R=Er, Dy)

1998 ◽  
Vol 275-277 ◽  
pp. 560-564 ◽  
Author(s):  
G Böttger ◽  
P Allenspach ◽  
J Mesot ◽  
A Dönni ◽  
Y Aoki ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
High Temperature ◽  
High Temperature Superconductor

scholarly journals Ceramic Cutting Materials and Tools Suitable for Machining High-Temperature Nickel-Based Alloys: A Review

Metals ◽  
2021 ◽  
Vol 11 (9) ◽  
pp. 1385
Author(s):  
Anton Seleznev ◽  
Nestor Washington Solis Pinargote ◽  
Anton Smirnov
Keyword(s):  
High Temperature ◽  
Physical Properties ◽  
Ceramic Composites ◽  
New Materials ◽  
Sialon Ceramic ◽  
Industrial Sectors

Nickel-based superalloys are attractive to many industrial sectors (automotive, military, energy, aerospace, etc.). However, their physical properties make them difficult to machining using traditional tools. Therefore, new materials for the machining of Ni-based alloys are required. Ceramic-based composites could act as a tool to replace the current materials. The incentives for this paper are to provide an overview of existing ceramic composites and draw some conclusions that will help in solving the problem of choosing materials for the processing of Ni-based superalloys. Despite the diversity of ceramic composites in this work, the possibility of using the SiAlON ceramic for Ni-based alloy machining is highlighted.

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