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MgCe undergoes a pressure-induced phase transition from the Ba structure to B32 structure at 36 GPa.
Among them, the Ba structure is the most stable structure corresponding to the ground state [12].
Crystalline structure models for MgCe in the Ba, B32, B20 and B2 structures.
MgCe undergoes a pressure-induced phase transition from Ba structure to B32 structure.
Liu, in: Computerized Physical Chemistry of Metallurgy and Materials, edited by High Education Press Publishing, Beijing, 1999, p.57

Fabrication and Characterization of Poly(vinyl alcohol)/ Functionalized Graphene Oxide Nanofibers Produced by Electrospinning Method Yuan-Hsiang Yu* and Chih-Jie Jan Department of Chemistry, Fu Jen Catholic University, Xinzhuang Dist., New Taipei City 24205, Taiwan (R.O.C.)
As a result, we found that when the polymer concentration is low enough, it is unable to form fibrous structure.
To prepare a ​​better fibrous structure, process parameters of electrospinning need to be controlled, for example, the appropriate factors of applied voltage, syringe pump flow rate, the distance of the needle to the collection plate, polymer concentration, etc.
Under lower loading of FGO, e.g., 0.5% FGO/PVA nanofibers has morphology completely fibrous structure (Fig. 3(a)), and without beads structure as compared to the pure PVA electrospun fiber (Fig. 2 (d)); both of them operated at the same concentration (16.67%) and process conditions.
SEM image of 1% FGO/PVA composite fiber could find both fibers and beads structure, therefore, when a higher loading of FGO in PVA matrix, the dispersion might not good enough for electrospinning process.

Protective layer seals the pores in the structure of coating and thus prevents the formation of corrosion and subsequent depreciation of coating in various corrosive environments.
The morphology and composition of the laser treated cladding are transformed from the original sprayed structure [3].
Chemistry characteristics of powder (in mass %): C max. 4, Co 10-12, W balance.
Structure, composition and thickness of the coating was studied on metallographic sections using SEM.
Protective boron nitride seals the pores in the structure of the HVOF coating and thereby prevents corrosion and subsequent degradation of the coating in various corrosive environments.

Growth and magneto-optical properties of CaTbAlO4 crystal Man Mei1,a, Lili Cao, Yan He, Ruru Zhang, Feiyun Guo, Naifeng Zhuang, Jianzhong Chen1,b 1College of Chemistry and Chemical Engineering, Fuzhou University, Fuzhou 350108, China ameiman333@163.com bj.z.chen@fzu.edu.cn Key words:magneto-optical devices, Czochralski method,Verdet constant, CaTbAlO4 crystal Abstract.The calcium terbium aluminate (CaTbAlO4) single crystal was grown by Czochralski method successfully for the first time.The structure of the crystal was determined by X-ray diffraction analysis.The transmission spectrum of the crystal was measured at room temperature at the wavelength of 400-1500nm.The specific Faraday rotation of the single crystal was surveyed at room temperature at the wavelength 532nm, 633nm, and 1064nm respectively.The Verdet constants of the CaTbAlO4 crystal are calculated and the results show that the Verdet constants of CaTbAlO4 are around 110% higher than that of TGG in the visible and near-infrared
Results and discussion Lattice parameters and structure.
The crystal has the same structure as K2NiF4 and can be depicted by the fig. 4[17].
X-ray diffraction of CaTbAlO4 at room temperature Fig. 4.Unit cell of ABCO4 compounds with I4/mmm type structure[132].
The specific faraday rotation angle and Verdet constant of TGG and CaTbAlO4 at different wavelength TGG CaTbAlO4 Wavelength (nm) 532 633 1064 532 633 1064 Rotation angle ( deg/cm) 107.5 76.8 22.9 223.0 159.9 48.8 Verdet constant (rad/mT) 187.6 134.0 40.0 389.2 279.0 85.4 Conclusions The CaTbAlO4 single crystal,which belongs to tetragonal system with the unit lattice parameters of a=3.65493 and c=11.94273,was grown successfully by the Czochralski method.The crystal has a good transmittance,a big Faraday rotation angle and a large Verdet constant in the visible and near-infared spectral region.Therefore,the CaTbAlO4 crystal has a promising future for the fabrication of magneto-optical devices at the wavelength of 400-1100nm and also contributes to the study of magneto-optical theories because of its distinct structures.

The structure strength and layer adhesion have been improved.
Conducting polymer actuators can be made in a variety of geometries on both the macro and microscale level, as well as in the shape of nanowires, by utilizing template synthesis in nanoporous membranes [4] and structures such as linear, bending-beam (single, double and multilayer).
In this work, three-layer structure consist of a Polyethersulfone as a substrate, a gold layer as the contact (to increase conductivity) and undoped Polypyrrole film as an electroactive polymer are proposed to build flexible actuator.
Ultimately by putting the system in the still water for more than 24 hours, the required three-layer structure is realized.
[3] T.F.Otero, E.Angulo, J.Rodriguez, J.C.Santamaria, Electrochemomechanical properties from a bilayer: polypyrrole/non-conducting and flexible material –artificial muscle, Journal of Electroanalytical Chemistry vol. (1992), p. 369

From the results, the MPmHAp NCs kept HAp lattice structure and had short rod-like morphology with superparamagnetic property.
The International Union of Pure and Applied Chemistry (IUPAC) classifies porous materials according to their pore sizes into three categories, namely microporous (with pores below 2 nm), mesoporous (with pores between 2 and 50 nm), and macroporous (with pores above 50 nm).
Results Crystal structure The XRD of MPmHAp showed specific peaks corresponding to those of reference HAp and magnetite (JCPDS cards 9-432 and 19-629) (data not shown).
This structure not only provide spaces for loading drug, but also act as drug-transferred channels.
In brief, MPmHAp nanoparticels have high surface area (66 m2/ g), mesoporous (23 nm) structure, and no significant cytotoxicity (<10%).

Study of Rapid Synthesis on LiFePOB4B and LiFePOB4B/C by Molten Salt Method and Its Electrochemical Properties as Cathode Material Ningyu GU1,a, Xinghua HE1 and Chao LI2 1,Department of Chemistry, Nanchang University, Nanchang 330031, China anygu@ncu.edu.cn 2, Jiangxi Meiya Energy Co., Ltd.
The LiFePOB4B was observed to micron-sized cuboid structure and the LiFePOB4B/C with nano-carbon layers had particle size distribution from nanometers to 3 μm by morphological characterization.
Bruker D8 Focus X-ray diffractometer (Germany) with monochromatized Cu Kα radiation was used to identify the crystalline structure of the materials.
The SEM image suggests that LiFePOB4B sample (Fig. 2a) has the micron-sized cuboid structure, the particle size of which is around 5 μm.
The physical results show that the LiFePOB4B has the micron-sized cuboid structure (around 5 μm), but the LiFePOB4B/C has paricles between nanometers and 3 μm, the surfaces of which were surrounded by carbon layers of several nanometrs.

The Dynamics for Aqueous Sodium Adsorption and Characterization of Natural Pyrophyllite LIU Bo, CHEN Haifenga and TANG Peisong Department of Chemistry, Huzhou Teachers College, Huzhou 313000, China aheadder@hutc.zj.cn Keywords: pyrophyllite, sodium, adsorption, dynamics Abstract.
Using the qualitative analysis of the samples of XRD with internal structure and found that pyrophyllite used in the experiment as a natural mineral, the presence with other minerals.
The sample's internal structure was qualitative analysis by XRD, according to the diffraction data to identify the crystal structure.
Pyrophyllite particles show the size of a thin sheet of hundreds μm2, and similar to our expect results , because pyrophyllite are 2:1 layered silicate compounds [4], two adjacent crystal layer only connection with van der Waals force, combined with weak, simple mechanical processing, can lead to "thinning" "stripping" effect, so we aim the 200 mesh samples, with such a structure, can lead to various types of anions and cations into the (slice) layer (intermolecular forces have been largely ineffective), the sample had a certain adsorption capacity.
From scanning electron micrographs of the whole, the structure of "thinning" "stripping" effect the distribution of deep and wide, For the subsequent adsorption experiments laid the structural basis, taking into account the pyrophyllite sample in water-soluble in the zeta of its negative, so the effect of adsorption for cation should be more significant.

The structure of films was investigated by X-ray diffraction and thermal analysis.
The structure of the film without glycerol was mainly amorphous structure.
This implies that the films containing glycerol are mainly of crystal structure.
The condensed structure of SF in films with no glycerol was mainly amorphous structure, with or without PP.
Ruan: Food Chemistry Vol.109 (2008) , p.493 [11] Y B.

After the polymer dispersant was dried and grinded with potassium bromide and pressed into tablets, they was put in the Nicolet Impact-670FTIR spectrometer to analysis of product structure.
As you can see from Figure 1: the stretching vibration absorption of C-H in cis-acting CH2=CH structure wasn’t at 730-665 cm-1 range, th absorption peak of -CH2 and CH in CH2=CH structure wasn’t at 915-905cm-1 range, stretch vibration absorption peak of -C=O was at 1610-1550cm-1and 1472 cm-1,1396 cm-1.
In Ullmann’s Encyclopedia of Industrial Chemistry; Hawkins, S., Schulz, G., Eds.; VCH: Weinheim,1992; Vol.