Title:
PREPARATION METHOD FOR NANO TUNGSTEN CARBIDE POWDER
Document Type and Number:
WIPO Patent Application WO/2023/168828
Kind Code:
A1
Abstract:
A preparation method for nano tungsten carbide (WC) powder, specifically comprising the following steps: (1) sequentially dissolving a tungsten salt, an organic monomer, a cross-linking agent, and a carburant in deionized water to form a transparent solution, and then adding an initiator to prepare a gel; and (2) drying the gel and performing calcination to obtain nano WC powder. The WC powder prepared by the method has high quality, near-spherical morphology, and fine, uniform, and nanoscale particle size, thus avoiding a plurality of defects of powder prepared by other methods, such as an uneven particle size and irregular morphology.
Inventors:
SHI KAIHUA (CN)
WANG XIAOFENG (CN)
ZAN XIUQI (CN)
SHU JUN (CN)
LIAO JUN (CN)
WANG XIAOFENG (CN)
ZAN XIUQI (CN)
SHU JUN (CN)
LIAO JUN (CN)
Application Number:
PCT/CN2022/093231
Publication Date:
September 14, 2023
Filing Date:
May 17, 2022
Export Citation:
Assignee:
ZIGONG CEMENTED CARBIDE CO LTD (CN)
UNIV CENTRAL SOUTH (CN)
UNIV CENTRAL SOUTH (CN)
International Classes:
C01B32/949
Foreign References:
| CN114634182A | 2022-06-17 | |||
| CN108705086A | 2018-10-26 | |||
| US4948573A | 1990-08-14 |
Other References:
MARDALI MARZIE, SARRAF-MAMOORY RASOUL, ABDOLHOSSEINI AHMAD, KHODAKARAMI MEHDI: "Particle Size Controlling of WC-Co Nano Powders Prepared by Polyacrylamide Hydrogel method", 4TH INTERNATIONAL CONFERENCE ON ULTRAFINE GRAINED AND NANOSTRUCTURED MATERIALS, 25 March 2016 (2016-03-25), XP093089746
MARDALI MARZIE; SARRAF-MAMOORY RASOUL; SADEGHI BEHZAD; SAFARBALI BABAK: "Acrylamide route for the co-synthesis of tungsten carbide–cobalt nanopowders with additives", CERAMICS INTERNATIONAL, ELSEVIER, AMSTERDAM., NL, vol. 42, no. 8, 26 February 2016 (2016-02-26), NL , pages 9382 - 9386, XP029505582, ISSN: 0272-8842, DOI: 10.1016/j.ceramint.2016.02.152
MARDALI MARZIE; SARRAF-MAMOORY RASOUL; SADEGHI BEHZAD; SAFARBALI BABAK: "Acrylamide route for the co-synthesis of tungsten carbide–cobalt nanopowders with additives", CERAMICS INTERNATIONAL, ELSEVIER, AMSTERDAM., NL, vol. 42, no. 8, 26 February 2016 (2016-02-26), NL , pages 9382 - 9386, XP029505582, ISSN: 0272-8842, DOI: 10.1016/j.ceramint.2016.02.152
Attorney, Agent or Firm:
MUDA INTELLECTUAL PROPERTY FIRM (CN)
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