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Title: Effect of hydrothermal condition on the formation of multi-component oxides of Ni-based metallic glass under high temperature water near the critical point

Journal Article · · AIP Advances
DOI:https://doi.org/10.1063/1.4926972· OSTI ID:1213533
 [1]; ORCiD logo [2];  [3];  [4];  [5]; ORCiD logo [1]
  1. Iljin Global Co., Ltd., Seoul (South Korea)
  2. Korea Institute of Industrial Technology, Incheon (South Korea)
  3. Yonsei Univ., Seoul (South Korea)
  4. Ames Lab., Ames, IA (United States)
  5. Korea Atomic Energy Institute, Daijeon (South Korea)

The specific feature of multi-component oxides synthesized by hydrothermal process under high temperature (633 K) and highly pressurized water (18.9 MPa) near critical point. Effects of hydrothermal processing duration times 24 hours and 72 hours, respectively, on the oxide formation of the Ni59Zr20Ti16Si2Sn3 metallic glass synthesized by powder metallurgy process were characterized by X-ray diffractometer, differential scanning calorimeter along with the particle size, morphology and crystalline phase of the oxides. The crystallization of the needle-shape NiTiO3, ZrTiO4 and ZrSnO4 ternary oxide phases observed on the surface of metallic glass at below glass transition temperature and the morphology of oxide phases changed to plate-shape around 2 μm in diameter by the increase processing time. This hydrothermal processing in subcritical water provides accelerated dense metal oxide crystals due to the reaction medium being at higher pressure than conventional oxidation processing.

Research Organization:
Ames Laboratory (AMES), Ames, IA (United States)
Sponsoring Organization:
USDOE Office of Science (SC)
Grant/Contract Number:
W-7405-ENG-82
OSTI ID:
1213533
Journal Information:
AIP Advances, Vol. 5, Issue 7; ISSN 2158-3226
Publisher:
American Institute of Physics (AIP)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 3 works
Citation information provided by
Web of Science

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Cited By (1)

Direct Deposition of Amorphous Cobalt–Vanadium Mixed Oxide Films for Electrocatalytic Water Oxidation journal July 2019