It was presented that there were different crystal mold and crystal structure of calcined calcium sulfate whiskers and the highest density crystal structure at 600 ℃.

The change of BNT crystal structure with that of parameter x was analyzed,and was compared with X-ray diffraction data of Ba6-3xSm8+2xTi18O54(BST) and Ba6-3xEu8+2xTi18O54(BET).

The variation in crystal structure and the transport properties of the sample were investigated through FTIR spectrum,Raman spectrum,ρ～T curves and ρ～T fitted curves.

Dielectric and ferroelectric properties of BaBi_4Ti_4O_(15) ceramics and their dependence on lattice structure;

Transmission electron microscope (TEM), Raman spectroscopy and X ray diffraction (XRD) were used to investigate the lattice structures, phonon properties of the samples.

The laws of the magnetic properties of granular films varying with the lattice structure have been studied.

Effects of pretreatment of chrysotile by three compounds on the crystal lattice structure and the surface charge of chrysotile;

This paper put forward the catalysis and transformation mechanism for the conversion of graphite in liquid crystal state into diamond layer by layer, and according to modem catalysis theory, analyzed the relationship of the electronic structure and crystal lattice structure to the activity of metal catalysts .

The twin structure and natural morphology of KTiOPO_4 crystal are stated in detail, and the effect of the twin structure on crystal growth is also discussed.