High temperature X-ray diffraction studies of the sample heating units

摘要：

By means of the in situ high temperature X-ray diffraction (HT-XRD).sample heating units (Pt) is studied as the standard sample for temperature correction in the temperature range 28-1050 according to method provided by Rigaku and method of copper target Kα radiation) Kα1, Kα2).By linear fitting, polynomial fitting and custom function fitting, the lattice parameters at each temperature point are also calculated and compared. Besides, different views are put forward for three aspects about the temperature correction in Rigaku diffractometer manual, and the complex phenomenon of the experiment are preliminarily discussed using the theoretical calculation and experimental diffraction data. Theory and experiment show that Custom fitting has higher accuracy. Selection of the degree of the Fitting polynomial must be greater than or equal to 3, the lattice constant of Platinum nonlinear increases with temperature.In the process of heating.Pt and environmental elements may be coupled reaction, platinum is oxidized to form a new oxide Pt3O2.

关键词： HT-XRD Pt temperature calibration liner fit custom fit Theoretical diffraction spectrum.Underwater acoustic OFDM real-time Image communication

作者: Cheng-xi Hu Peng Liu Yuan Liu

作者单位: College of phvsics and information technology,Shaanxi Normal University,Xi an,710062,China Departme College of phvsics and information technology,Shaanxi Normal University,Xi an,710062,China Department of phvsics,Qinghai Normal University,Xining,810008,China

会议类型: 国际会议

会议名称: International Conference on Advances in Engineering 2011(2011年工程研究进展国际学术会议 ICAE2011)

会议地点: 南京

会议语种:英文

页码: 404-411

在线出版日期: 2011-12-17（万方平台首次上网日期，不代表论文的发表时间）