Cloud computing provides a solution which enables large-scale data and web resources sharing. RDF technology resolves the problems of semantic heterogeneity in data integration. Therefore, the combination of Cloud Computing and RDF brings great challenges to traditional data integration. This paper presents a framework for materials web resources integration in the RDF-based cloud (CloudMat), which focus on large amounts of materials web resources, to address the requirement of sharing materials data and capturing materials knowledge in cloud. We also try to describe the key technologies of im...