Fabrication of Al₂O₃-Cu Nanocomposites Using Rotary Chemical Vapor Deposition and Spark Plasma Sintering

Table 1

Specific surface area, grain size of Cu and content of Cu in Al₂O₃ and Al₂O₃-Cu powders.

	Precipitation temperature/K	Specific surface area/m^2 g^−1	Grain size of Cu^∗/nm	Content of Cu/mass%
Al2O3	—	49.3	—	—
Al2O3-Cu	573	41.8	—	1.2
Al2O3-Cu	673	42.3	18	3.8
Al2O3-Cu	773	45.4	25	5.2
Al2O3-Cu	873	43.8	28	2.1

The crystalline grain size of the Cu nanoparticles was obtained by Scherrer’s formula from the XRD patterns.