The SrTiO3 (001) substrates treated by chemical etching in NH4F-buffered HF solution and annealing in oxygen ambient hav......

High resolution transmission electron microscopy (HRTEM) has been used to investigate the extended defects induced by th......

介绍了东芝阀壳铸件（主汽阀ＭＳＶ、调节阀ＣＶ）超声波探伤缺陷的主要波形特征和识别方法，阐述了具体应用的超声波探伤方法以及铸件中缺陷的定性......

Ｎｂ：ＫＴＰ晶体（简称ＫＴＮＰ），为一种新型蓝光倍频晶体，在激光频率转换、光学数据存储和医疗诊断等方面具有广阔的应用前景［１］。本文以ＫＨ２ＰＯ４，Ｋ２ＨＰＯ４·３ＨＯ２，ＴｉＯ２和Ｎｂ２Ｏ５（光谱纯）为起始......