Spectrum locally-modified hot color nano-composite powder and preparation method thereof

• Main Authors: XIAO XIUDI, XU GANG, ZHANG HUA, CHAI GUANQI
• Format: Patent
• Language: Chinese; English
• Published: 13.08.2014
• Subjects: CASTING; MAKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; PERFORMING OPERATIONS; POWDER METALLURGY; TRANSPORTING; WORKING METALLIC POWDER

The invention provides spectrum locally-modified hot color nano-composite powder and a preparation method thereof. The powder is of a multilayer composite core-shell structure which consists of a V2O layer, a precious metal layer and a transparent oxide layer, wherein the V2O layer serves as a core layer; the precious metal layer and the transparent oxide layer are respectively positioned on the second layer or the third layer. According to the spectrum locally-modified hot color nano-composite powder and the preparation method thereof, the precious metal layer and the transparent oxide layer coat the surfaces of V2O nano-particles, so that the stability of the V2O nano-particles can be improved, the spectral characteristics of V2O nano-powder can be adjusted, and the transmission color and the reflection color of the V2O nano-powder are adjusted; therefore, the aim of improving the color of the V2O powder is fulfilled. The powder can be widely applied to the fields of heat insulation coatings, lamination and