作者机构:[1]School of Materials Science and Engineering, Changtan University, Xi'an 710061, China, [2]Institute of Materials Science and Engineering, Lanzhou University, Lanzhou 730000, China
相关基金:This work was supported by the National Natural Science Foundation of China (Grant Nos. 51102022 and 508Y2046), the China Postdoctoral Science Foundation (Grant No. 2011M501413), the Special Fund for Basic Scientific Research of Central Colleges, Changan University (Grant No. CHD2012ZD015) and the Special Fund for Basic Research support programs of Chang'an University.