Research progress in metal dielectric selective absorbing coating

Coating design and theoretical calculation are introduced in this paper.Through theoretical calculation,the concentrating solar power systems can realize the temperature demand of coating sur face.In the concentrating solar power systems,the highest working temperature will be up to 799 ℃ when the concentrating ratio is 50.The research status of metal dielectric selective absorbing coating of M Al2O3 coating, metal oxide coating and metal nitride coating are also reviewed. Analysis results show that coating structure, coating material and matrix material are the main factors affecting the coating performance,and which indicate the research direction of metal dielectric selective absorbing coating.