最新色国产精品精品视频,中文字幕日韩一区二区不卡,亚洲有码转帖,夜夜躁日日躁狠狠久久av,中国凸偷窥xxxx自由视频

In this paper the characteristic of ZrO2 grain growth during the oxidation in nanocrystalline Zr-4 under 673 K/10.3 MPa conditions was studied. The results show that the grain size and grain growth rate of ZrO2 which formed on the nanostructure basis were smaller than that of ZrO2 formed on the coarse grain basis. So the nanocrystalline treatment leads to fine grain of ZrO2 and has influence on the oxidation dynamics of zircaloy-4