the support from the National Natural Science Foundation of China (51071009 and 51171005)
Al and Y modified silicide coatings on the Nb-15Si-22Ti-(2,14)Cr-2Al-2Hf-2V alloys(where the alloy with 2 at%Cr or 14 at%Cr is hereafter referred to as 2Cr and 14 Cr alloy,respectively) was prepared by pack cementatio...
supported by the National Natural Science Foundation of China (No. 50871087);the Programme of Introducing Talents of Discipline to Universities(No. B080401)
In order to protect Nb-Ti-Si based ultrahigh temperature alloy from oxidation, pack cementation processes were utilized to prepare Ce and Y jointly modified silicide coatings. The Ce and Y jointly modified silicide co...
supported by National Natural Science Foundation of China under the contract of 51171010
In order to identify suitable halide activators and pack compositions for codepositing Cr and Si to form diffusion coatings on Nb-base in situ composites by the pack cementation process, thermochemical calculation was...