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Synthesis of nanosized zirconium diboride powder with high purity via simply purified boron carbide

Title
Synthesis of nanosized zirconium diboride powder with high purity via simply purified boron carbide
Author
안계석
Keywords
ultra high-temperature ceramics; zirconium diboride; carbothermal/borothermal reduction; synthesis
Issue Date
2018-11
Publisher
INDERSCIENCE ENTERPRISES LTD
Citation
INTERNATIONAL JOURNAL OF NANOTECHNOLOGY, v. 15, no. 6-7, page. 518-527
Abstract
The purified B4C was applied in ZrB2 synthesis to remove B2O3 at the initial state, which causes an excess B4C requirement and abnormal growth. B4C showed decreasing oxygen content by washing time and was saturated at 0.22% after being washed five times. ZrO2 and washed B4C were heat-treated at 1250 degrees C for 1 h for synthesis using carbothermal/borothermal reduction. With a crystallographic and elemental analysis of the synthesised particle, the optimised ZrO2 and B4C molar ratio range was selected as 0.83 to 0.87 and washed five times. The synthesised particles measured 103.0 mm to 199.9 nm at various molar ratios. However, no change in the morphology due to the B2O3 liquid phase was observed in the SEM image and particle size distribution.
URI
http://www.inderscience.com/offer.php?id=96342https://repository.hanyang.ac.kr/handle/20.500.11754/120573
ISSN
1475-7435; 1741-8151
DOI
10.1504/IJNT.2018.096342
Appears in Collections:
RESEARCH INSTITUTE[S](부설연구소) > THE RESEARCH INSTITUTE FOR NATURAL SCIENCES(자연과학연구소) > Articles
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