In:
Journal of the American Ceramic Society, Wiley, Vol. 106, No. 9 ( 2023-09), p. 5147-5156
Abstract:
A novel method for preparation of ZrB 2 coatings has been proposed by combination of molten salt synthesis of ZrB 2 nanoparticles and subsequent electrophoretic deposition of the as‐synthesized ZrB 2 nanoparticles in the same molten system in this paper. Nanoscale ZrB 2 particles have been produced by borothermal reduction of ZrO 2 in NaCl‐KCl‐AlF 3 melt at 980°C. Then electrophoretic deposition of the as‐synthesized ZrB 2 nanoparticles has been achieved in the resulting molten suspension at a reduced temperature of 900°C, yielding relatively dense ZrB 2 coatings on graphite substrates with a thickness of around 25 μm. Moreover, the effect of different cell voltages ranging from 0.8 V to 1.4 V (i.e., electric field 0.4–0.7 V/cm) on the prepared ZrB 2 coatings has been investigated. Finally, during the tests at 600°C–800°C in air, ZrB 2 coatings deposited at a cell voltage of 1.2 V have exhibited good high‐temperature oxidation resistance.
Type of Medium:
Online Resource
ISSN:
0002-7820
,
1551-2916
Language:
English
Publisher:
Wiley
Publication Date:
2023
detail.hit.zdb_id:
2008170-4
detail.hit.zdb_id:
219232-9
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