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China 2 Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, 100101, Beijing, China 3 Department of Ceramics and Glass Engineering, CICECO, University of Aveiro, 3810-193, Aveiro, Portugal Keywords: Combustion synthesis, β-Si3N4, β-SiAlON, Anisotropic crystal growth Abstract. β-Si3N4 and β-SiAlON powders were prepared by combustion synthesis with SrCO3 and NH4F used as additives.
Numerous studies have shown that the fracture toughness of Si3N4 and SiAlON ceramics can be remarkably improved by developing elongated grains to form an interlocking structure [2].

., sect.6, Bucharest, Romania 2 University POLITEHNICA of Bucharest, Faculty of Industrial Chemistry, Catedra SIMO, PO Box 12-134, Bucharest, Romania 3 METAV S.A.
Broad bands in this region are commonly observed in spectra of metal oxides with CO2 and are assigned to surface carbonate groups, which are variable with respect to temperature and crystal structure of the oxide.

This criterion was therefore used in the design of components and structures.
The chemistry of the alloy is shown in Table 1 while some properties in the as-received condition are listed in Table 2.

For a system with three phases, by considering the abovementioned conditions, it is suggested that the modulus of the interphase at any point, r, can be calculated by [6]: [][ ])/( )/()()/()( ~ 2/ fimf n fi i im i rrEErrrrrrErE − −−+= , (1) where n is the intragallery enhancement factor and is a dimensionless parameter, which totally depends on the chemistry and surface treatment of the particles [6].
A schematic diagram of the nanocomposite structure assuming that the nano-particles are all of equal radius, rf , and packed in a cubic matrix.

Synthesis of Rod-like BiPO4 Microcrystal and Highly Efficient Visible Light Photocatalytic Activity Yue Lin-lina, Zhang Jieb, He Xiao-meic, Wang Dan-jund*, Fu Fenge* College of Chemistry & Chemical Engineering, Yan’an University, Shaanxi Key Laboratory of Chemical Reaction Engineering, Yan’an 716000, P.
The phase structure and crystallinity of BiPO4 microcrystal was examined by XRD measurement.

Synthesis and Swelling Behavior of Biodegradable Cellulose-based Hydrogels Min Xiao1, a *, Jiancan Hu1,b and Liming Zhang2,c 1 Guangzhou Fiber Products Testing and Research Institute, Guangzhou 510220, China 2 Department of Polymer and Materials Science, School of Chemistry and Chemical Engineering, Sun Yat-sen (Zhongshan) University, Guangzhou 510275, China agttxiaom@163.com, b274388418@qq.com, cceszhlm@mail.sysu.edu.cn Keywords: Biodegradable, Cellulose, Hydrogel, Swelling Abstract.
In this study, cellulose was added to reinforce the hydrogel structure on the grounds that the chains of cellulose are very stiff and act as a backbone to improve the mechanical strength of the hydrogel.

Measurement Content of 1-methyl-3-butyl Imidazole Nitrate in Water Lu Yu, Peng Tian* College of Chemistry and Life Science, Shenyang Normal University, Shenyang 110034, China *email: tianpenglnu@sina.com Keywords: BMINO3 ionic liquid, analysis content, UV–spectrum Abstract: 1-methyl-3-butyl Imidazole nitrate is prepared by BMIC and NaNO3 in the acetone.
We use infrared spectrometer for the structure characterization.

Another more important target was to investigate how Y2O3/La2O3 molar proportion influence the micro structure and mechanical properties of the Cf/SiC composites. 2.
Effects of intergranular phase chemistry on the microstructure and mechanical properties of silicon carbide ceramics densified with rare earth oxide and alumina additions[J].

Study on Solidification Kinetics and Crystallization Analysis of Dynamically-Vulcanized PP/EPDM Blends Lei Hu, Bin Yang *, Xia Ru *, Ji-Bin Miao, Fei-Xue Lu, Ming Cao, Jia-Sheng Qian, and Yu-Chuan Zhang College of Chemistry & Chemical Engineering, Key Laboratory of Environment-Friendly Polymeric Materials of Anhui Province, Anhui University, Hefei 230601, Anhui, China * Corresponding authors, E-mail: yangbin@ahu.edu.cn (B.
On the one hand, there were already some studies indicating that PP/EPDM blends prepared by dynamic vulcanization can present phase structure of “sea-island" [9].

The water, except the chemically bound water considered as integral part of chemical structure of hydration products, fills the space and has a distribution in these pores.
Taylor: Cement chemistry, 2nd Ed.