Title:
PREPARATION METHOD FOR RGO/AL-BASED COMPOSITE MATERIAL
Document Type and Number:
WIPO Patent Application WO/2022/099476
Kind Code:
A1
Abstract:
A preparation method for an RGO/Al-based composite material, comprising the following steps: adding GO into absolute ethanol, performing ultrasonic treatment to obtain a mixed solution, adding an aluminum alloy powder, encapsulating the mixture in a stainless steel ball milling tank, performing ball milling for 11-13 h under the protection of an argon gas, then pouring resultant ball-milled slurry into a beaker and transferring the beaker into a vacuum drying oven, and drying the slurry at 85-95°C for 14-16 h to obtain a GO/aluminum alloy mixed powder; reducing the dried mixed powder in an Ar gas mixture having an H2 content of 5%; loading the reduced composite powder into a high-speed steel mold, using a tablet press to load a pressure to prepare a mixed powder compact, placing the compact in a tube furnace to perform initial firing in a vacuum state, then using the tablet press to re-press the initially fired sample, and finally refiring the re-pressed sample in a tube furnace in a vacuum, and cooling the sample to give the product.
Inventors:
LAN MUCHANG (CN)
Application Number:
PCT/CN2020/127865
Publication Date:
May 19, 2022
Filing Date:
November 10, 2020
Export Citation:
Assignee:
NANTONG YOUYUAN ART DESIGN CO LTD (CN)
International Classes:
C22C32/00; C22C21/00
Foreign References:
| CN106914611A | 2017-07-04 | |||
| CN105506402A | 2016-04-20 | |||
| KR20190080529A | 2019-07-08 |
Other References:
HU LINLI, YU YANLI, HUANG LINLIAN, CAI RONGHUI, ZHENG KEFAN: "Repressing and Re-sintering Process Parameters Optimization for RGO/Al Matrix Composites", SPECIAL CASTING & NONFERROUS ALLOYS, vol. 38, no. 10, 20 October 2018 (2018-10-20), pages 1116 - 1120, XP055930966, DOI: 10.15980/j.tzzz.2018.10.020
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