Spark plasma sintering of layered γ -Al2O3/graphene reinforced nanocomposites

Estonian Academy of Sciences. Proceedings

Ali Saffar Shamshirgar¹ 

关键词: nanofibre;    hierarchical structures;    nanocomposites;    spark plasma sintering.;   

DOI  :  10.3176/proc.2019.2.04

学科分类：化学（综合）

来源: Teaduste Akadeemia Kirjastus

【 摘 要 】

Multi-layered ceramic composites with alternation of grain sizes in layers were produced by adding thin interlayers ofgraphene-augmented alumina nanofibres (GAIN) between layers of monolithic α-Al2O3. The composite was mounted layer bylayer directly in the graphite mould, using a vacuum filter system to precipitate alumina nanopowder and GAIN layers from thecorresponding suspensions. The 30-mm diameter samples were consolidated by the spark plasma sintering technology at 1450 °Cin nitrogen atmosphere at 50 MPa pressure. The effect of interlayers on the microstructure of alumina and on the thermal andelectrical conductivity of the compact is studied.

【 授权许可】

CC BY-NC