Zobrazeno 1 - 10
of 17
pro vyhledávání: '"Sermsuk Ratreng"'
Autor:
Pongkaew Udomsamuthirun, Tunyanop Nilkamjon, Thitipong Kruaehong, Supphadate Sujinnapram, Sermsuk Ratreng
Publikováno v:
Journal of the Australian Ceramic Society. 53:3-10
The bulk samples of milled and unmilled synthesized by conventional solid-state reaction. The powder X-ray diffraction and Rietveld refinement software program characterized crystal structure. The elementary mapping technique was used EDXS. For the o
Autor:
Piyamas Chainok, Tunyanop Nilkamjon, Pongkaew Udomsamuthirun, Supphadate Sujinnapram, Sermsuk Ratreng, Thanarat Khuntak
Publikováno v:
Key Engineering Materials. :299-302
The YBa5Cu6Ox (Y156) superconductors were synthesized by melt process method with sintering at 980 °C. The samples were characterized by the SEM, EDX, XRD and resistance measurement. The critical temperature onset () and the critical temperature off
Autor:
Supphadate Sujinnapram, Thanarat Khuntak, Tunyanop Nilkamjon, Piyamas Chainok, Sutee Chantrapakajee, Sermsuk Ratreng, Pongkaew Udomsamuthirun
Publikováno v:
Key Engineering Materials. :303-306
In this research, we synthesized and investigate the physical properties of YBaCuO superconductor; Y123 and Y13-20-30. The melt process was used for heat treatment of our samples. We found that the critical temperature onset of Y13-20-33 and Y123 wer
Autor:
Sermsuk Ratreng, Thitipong Kruaehong, Pongkaew Udomsamuthirun, Tunyanop Nilkamjon, Supphadate Sujinnapram
Publikováno v:
Key Engineering Materials. :307-311
The Y257 superconductor was prepared by the melt process. The critical temperature of the sample is lower than sample prepared by solid state reaction. The sample are composed of 60% of superconducting phase and 40% of non-superconducting phase. The
Autor:
Sermsuk Ratreng, Thitipong Kruaehong
Publikováno v:
Key Engineering Materials. :517-521
The Y3-8-11 superconductors and silver composite superconductors were synthesized by solid state reaction. The standard four probes method was used to measure the critical temperature (Tc), and the XRD technique (FULLPROF PROGRAM) was used to determi
Autor:
Pongkaew Udomsamuthirun, Nantawat Phomphuang, Piyamas Chainok, Kiattipong Somsri, Supphadate Sujinnapram, Prachkitti Mychareon, Tunyanop Nilkamjon, Sermsuk Ratreng
Publikováno v:
Advanced Materials Research. 979:220-223
In this research, the Y123 (YBa2Cu3Ox) and Y134 (YBa3Cu4Ox) superconductors were synthesized by solid state reaction and melt process, respectively. The crystal structure of all the samples were then determined using the Rietveld full-profile analysi
Autor:
Sermsuk Ratreng, Supphadate Sujinnapram, Thanarat Khuntak, Pongkaew Udomsamuthirun, Piyamas Chainok, Tunyanop Nilkamjon
Publikováno v:
Advanced Materials Research. 979:228-231
In this research, we synthesized Y123 superconductor and Y235 superconductor doped with fluorine by solid sate reaction with Y2O3, BaCO3, CuO and CuF2 as precursor. The physical properties of Y235+Fx (Y2Ba3Cu5Oy-xFx) and Y123+Fx (YBa2Cu3Oy-xFx) super
Autor:
Tunyanop Nilkamjon, Pongkaew Udomsamuthirun, Thitipong Kruaehong, Supphadate Sujinnapram, Sermsuk Ratreng
Publikováno v:
Advanced Materials Research. 770:26-29
The new superconductors of Y-based compound, Y7Ba11Cu18Oy(Y7-11-18), has been discovered by solid state reaction with the different ratios of raw materials. All obtained samples were analyzed and characterized by XRD and the FULLPROF program. The lat
Autor:
P. Butsingkorn, P. Ruttanaraksa, Supphadate Sujinnapram, Piyamas Chainok, Pongkaew Udomsamuthirun, Tunyanop Nilkamjon, Sermsuk Ratreng, K. Kritcharoen
Publikováno v:
Advanced Materials Research. 770:295-298
In this research, we synthesized and characterized the physical properties of YBa2Cu3Ox (Y123) and YBa4Cu5Ox (Y145) superconductors by solid state reaction and melt process. The raw materials Y2O3, BaCO3 and CuO were mixed, ground and react in the ai
Autor:
Pongkaew Udomsamuthirun, Sermsuk Ratreng, Tunyanop Nilkamjon, Thitipong Kruaehong, Supphadate Sujinnapram
Publikováno v:
Bulletin of Materials Science. 34:1053-1057
XRD spectra of new YBaCuO superconductors were studied. There were 2 phases found in our samples, the superconducting phase and the non-superconducting phase. The more non-superconducting phase, the more anisotropy parameters were found. The amount o