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Thermochemical analysis on the growth of NiAl2O4 rods

Title
Thermochemical analysis on the growth of NiAl2O4 rods
Author
김현우
Keywords
CERAMIC HUMIDITY SENSORS; NICKEL ALUMINATE SPINEL; LASER-ABLATION; OXIDE; OXIDATION; NANOPARTICLES; FABRICATION; KINETICS; FILMS
Issue Date
2014-04
Publisher
Royal SOC Chemistry
Citation
RSC Advances, 2014, 4(3), P.1159-1162
Abstract
We have succeeded in growing cubic submicron-sized NiAl2O4 rods on sapphire substrates by means of heating a mixture of NiO and graphite powders. At 1600 degrees C, NiAl2O4 rods terminated by SiOx-containing nanoparticles were grown on the sapphire substrates. In contrast, NiO rods grew randomly at 1500 degrees C. We elucidated the growth steps of cubic NiAl2O4 submicron-sized rods on the basis of a thermochemical approach, revealing the critical role of liquid silica that blocks the continuous loss of Ni to the vapor phase for the successful growth of NiAl2O4 rods.
URI
http://pubs.rsc.org/en/Content/ArticleLanding/2014/RA/C3RA43196G#!divAbstract
ISSN
2046-2069
DOI
10.1039/C3RA43196G
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > MATERIALS SCIENCE AND ENGINEERING(신소재공학부) > Articles
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