利用EBSD研究C_3S的结构及其纳米结构表征计算

C_3S Structure Studied by EBSD and Characterization Calculation of Its Nanometer Grain

通过X射线粉晶衍射测试及计算得出了C3S的精确晶胞参数和原子坐标,建立了C3S的三维晶体结构模型及准确的C3S晶体的EBSD晶体学数据库文件。经过EBSD测试分析检验证明,该数据库文件可以很好地标定C3S晶体的EBSP图像,并进行其初步的EBSD相测定,测试结果与X射线粉晶衍射得出的结果一致,均为a0=0.7078nm,b0=0.7078 nm,c0=2.4940 nm;α=β=90°,γ=120°,V=1.08205 nm3。根据C3S的三维晶体结构模型,假设C3S纳米微粒具有最小尺度,理论上确定了其最佳纳米尺度,粒径在110 nm左右,厚度值约为387.60 nm。

C3S precision cell parameters and atomic coordinates were obtained by powder X-ray crystal diffraction analysis and related calculation.Three-dimensional structure model of C3S crystal was set up and EBSD accuracy crystallography database file of C3S crystalwere set up,through analysis and inspection of EBSD test,the database file can calibrate EBSP pattern of C3S crystal and take preliminary test of EBSD phase identification very well,and its conclusions are in agreement with the results gained by powder X-ray diffraction test quite well,both are a0=0.7078 nm,b0=0.7078 nm,c0=2.4940 nm;α=β=90°,γ=120 °,V=1.08205 nm3.According to three-dimensional structure model of C3S crystal,from the view of nanotechnology,it is that C3S nanometer grains were of minimum dimension,and determined its best nanometer dimension on theory,grain size is 110 nm or so and thickness value is about 387.60 nm.