Title:
HIGH-ENTROPY ALLOY BORIDE CERAMIC, AND PREPARATION METHOD THEREFOR AND APPLICATION THEREOF
Document Type and Number:
WIPO Patent Application WO/2020/155283
Kind Code:
A1
Abstract:
A high-entropy alloy boride ceramic and a preparation method therefor. The molecular formula of the high-entropy alloy boride ceramic is Aly(FeNiCoCr)1-x-yBx, wherein 0≤x≤1 and 0≤y≤1.The high-entropy alloy boride is prepared by the following steps: carrying out ball milling on Al, Fe, Ni, Co, Cr, and B to prepare Aly(FeNiCoCr)1-x-yBx powder; then carrying out spark plasma sintering at a heating rate of 50-200 °C/min, a temperature of 800-1500 °C, and a constant pressure of 10-50 Mpa; carrying out furnace cooling. The Aly(FeNiCoCr)1-x-yBx high-entropy alloy boride powder prepared by the method is approximately spherical and is small in particle size, the ceramic main phase is an FCC solid solution in which Fe and Cr metal borides are dispersed, and high density, high hardness and wear resistance are achieved.
Inventors:
LONG YING (CN)
CHE JINTAO (CN)
HUANG LUJIANG (CN)
LIN HUATAY (CN)
CHE JINTAO (CN)
HUANG LUJIANG (CN)
LIN HUATAY (CN)
Application Number:
PCT/CN2019/076727
Publication Date:
August 06, 2020
Filing Date:
March 01, 2019
Export Citation:
Assignee:
UNIV GUANGDONG TECHNOLOGY (CN)
International Classes:
C04B35/58; C04B35/645; C04B35/65
Foreign References:
| CN107130125A | 2017-09-05 | |||
| CN109234690A | 2019-01-18 | |||
| CN109207830A | 2019-01-15 | |||
| CN109082553A | 2018-12-25 | |||
| CN104451351A | 2015-03-25 | |||
| CN101386928A | 2009-03-18 | |||
| EP3392359A1 | 2018-10-24 |
Other References:
CHEN QIUSHI: "Study on the Modification of AlCoCrFeNi-based High Entropy Alloys by B and Fe Element", MASTER DISSERTATION, 31 March 2016 (2016-03-31), CN, pages 1 - 55, XP009522519
Attorney, Agent or Firm:
JIAQUAN IP LAW FIRM (CN)
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