To obtain composite paint with good infrared absorption and low emissivity

nanometer NiO/Al composite particle was prepared with nanometer compounding technique. To ensure the IR camouflage performance of the composite

heat treatment temperature was fixed by heat analysis on composite intermediate of Ni2CO3(OH)2/Al.The results of SEM on composite fore-and-after heat treatment indicated that NiO on the composite surface became nanometer sphere after heat treatment from wire-like Ni2CO3(OH)2.This phenomenon has not been reported in similar fields up to now. Compared with the XRD charts of NiO/Al and NiO prepared in experiment

it was found that the diffraction peaks of NiO of NiO/Al were broadened

and the characteristics of nanometer particles were shown evidently.The crystal diameter of NiO in composite particles was 12 nm

calculated by the width of the curve peak at half height.