新型炭材料2019，Vol.34Issue(3)：275-285,11.DOI:10.1016/S1872-5805(19)60016-8
粉体石墨烯对铝基复合材料微观结构和性能的影响
Effect of the graphene content on the microstructures and properties of graphene/aluminum composites
王剑 1郭丽娜 2林万明 1陈津 1刘春莲 1陈少达 1张帅 1甄甜甜1
作者信息
- 1. 太原理工大学 材料科学与工程学院,山西 太原 030024
- 2. 太原钢铁集团有限公司,山西 太原 030003
- 折叠
摘要
Abstract
A graphite mold was filled with a mixed powder of aluminum and graphene. It was evacuated to 2×10-1 Pa, pre-pressed under 10 MPa, heated to 450 ℃ where it was kept for 5 min, pressed again under 40 MPa, heated to 600 ℃ where it was kept for another 5 min to prepare graphene/aluminum (G/Al) composites. The effect of the graphene content on the microstructure, and thermal, electrical, mechanical and anticorrosive properties of the composites was investigated. Results indicate that when the graphene content is 0. 5 wt. % , it is uniformly dispersed at grain boundaries in the Al matrix. Compared to pure Al the resulting composite has thermal and electrical conductivities that are respectively 7. 1% and 4% higher, tensile strength and hardness that are 30. 6% and 44% higher, and a corrosion resistance that is 31% higher. When the graphene content exceeds 0. 5 wt. % , it agglom-erates at grain boundaries in the Al matrix, leading to a decrease of all the above-mentioned properties.关键词
粉体石墨烯/铝基复合材料/微观结构和性能Key words
Graphene powder/Aluminum matrix composites/Microstructure and properties分类
通用工业技术引用本文复制引用
王剑,郭丽娜,林万明,陈津,刘春莲,陈少达,张帅,甄甜甜..粉体石墨烯对铝基复合材料微观结构和性能的影响[J].新型炭材料,2019,34(3):275-285,11.
