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Simon, "Atomic environment in sol–gel derived nanocrystalline hydroxyapatite," Materials Science and Engineering: B, vol. 165, pp. 247-251, 2009
Best, "Substituted hydroxyapatites for bone repair," Journal of Materials Science: Materials in Medicine, vol. 23, pp. 2335-2347, 2012
Ichinose, "Zinc-containing tricalcium phosphate and related materials for promoting bone formation," Current Applied Physics, vol. 5, pp. 402-406, 2005
Ramesh, "Synthesis of Zinc Doped-Biphasic Calcium Phosphate Nanopowder via Sol-Gel Method," Key Engineering Materials, vol. 531-532, pp. 614-617, 2013
Rey, "Adaptative physico-chemistry of bio-related calcium phosphates," Journal of Materials Chemistry, vol. 14, pp. 2148-2153, 2004.

Microstructure Observation and Analysis of Powders, Green Bodies Used for Sintering SiC Ceramics by SEM Jiang Yonga, Wu Lanerb, Chen Yuhongc, Lu Youjund and Huang Zhenkune School of Materials Science and Engineering, Beifang University of Nationalities, Wenchangbei Road, Yinchuan 750021, China ajynxyc@126.com (Corresponding author), bLanerwu@126.com, clyhchen@163.com, dyoujunlu518@hotmail.com, ezkh_08@163.com Keywords: SiC ceramics, powder, green body, microstructure Abstract.
Microstructure is very important to the properties of materials.
So study on the microstructure of materials is a forever task of scholar [1-3].
Many good microstructure of SiC ceramic materials were studied by scholars [1-7].
Neethling, TEM analysis of planar defects in β-SiCInt, Journal of Refractory Metals & Hard Materials. 27 (2009) 443–448

Effect of Ag Addition on Growth of the Interfacial Intermetallic Compounds between Sn-0.7Cu Solder and Cu Substrate Xiaochen Xiea*, Xiuchen Zhaob, Ying Liuc, Jingwei Chengd, Bing Zhenge and Yue Guf School of Materials Science and Engineering, Beijing Institute of Technology, 5 Zhongguancun South Street, Beijing, 100081, China.
Journal of Alloys and Compounds. 509(2011) 6276-6279. ].
Journal of Materials Science: Materials in Electronics. 24(2013) 4630-4635. ].
Journal of Alloys and compounds. 506(2010) 331-337. ].
Journal of Electronic Materials. 29(2000) 1207-1213. ].

Materials and Methods Materials and preparation of test specimens A precious ceramic alloy (Made by Grikin Advanced Materials Co., Ltd) was selected for study with nominal chemical composition (wt%) of 15%Au, 52.2%Pd, 21.5%Ag, 6%In, 4%Sn,1%Ga and 0.3%Ru.
[4] Li Xunke,Wang Zhongyi ,Ai Shenqian et. al., Chinese Journal of Dental Materials and Devices, 11(1)(2002), P.52-53
[6] Chen Lei,Cai Hui, Xu Guofu et. al., Journal of Central South University(Medical Sciences), 3(2006), P.408-413
[7] Liu Li, He Fuming, Chinese Journal of Dental Materials and Devices, 11(1)(2002), P.10-13
[8] Turan Korkmaz,Volkan Asar, Materials and Design, 30(2009), P.445-451

National governments pay high attentions to the expressway safety, put into a mass of human, materials and financial resources to manager this problem and develop many studies on expressway safety widely.
China Safety Science Journal， Vol.15(1) 2005, p.59-62
Journal of Changsha University of Science and Technology (2003),3(2):p.7-11
Journal of Qinghai Normal University( Natural Science) (2002),13(3),p.19-23
China Safety Science Journal(2003)，13(2),p.47-49

The research results are helpful to improve the lubricating properties of the magnetic fluids on the surface of the porous material.
Effect of parameters of material with pore structure on output of MF.
Fig.5 shows the relationship between the length of porous material and the output capacity of MF.
Acknowledgement The authors would like to thank National Natural Science Foundation of PR China for the financial support [ID:51075311].
CHINESE JOURNAL OF VACUUM SCIENCE AND TECHNOLOGY.

Introduction As the operation temperature of structural materials is continuously rising, how to improve the antioxidant capacity of structural materials in high temperature environment has become one of the hot points.
Therefore, Ir, often in the form of coated surface of the structural materials working under high temperature for a long-term, has a wide application prospect in the high temperature field [1,2].
Chen: Rear Metal Materials and Engineering, Vol. 34 (2005), p. 139 [4] K.
Hirai: Journal of Materials Science Letter, Vol. 12 (1993), p. 14 [5] Y.
Zhang: Rear Metal Materials and Engineering, Vol.30 (2001), p. 471 [11] G.

Thixoforming and related semi-solid processing (SSP) methods require thixotropic materials.
Materials in the semi-solid state have a spherical or globular form and a fine grain in the liquid phase that gives thixotropic properties to the material.
Zhang, Study on the microstructure evolution and rheological parameter of semisolid Mg-10Al-4Zn alloys, “Materials Science & Engineering” Vol. 478 (2008), 195-200 [2] N.
Birol, A357 Thixoforming Feedstock Produced by Cooling Slope Casting, “Journal of Material Processing Technology”, Vol. 186 (2007), 94-101 [4] T.
Kaprano, Billets simple thixoforming process, “Journal of Material Processing Technology”, Vol. 130-131 (2002), 581-586 [5] H.

The two materials are all brittle.
The mechanical properties of the two materials are similar to the concrete.
The brittle damage model is adopted to describe the two materials in LS-DYNA.
Modulus of elasticity and Poisson’s ratio of the materials are obtained from the literature [9].
Journal of Engineering Mechanics, 2002, 128: 134-142

In these methods, the printing process needs large amount of energy, such as high temperature in FDM, laser in DMLS, and electron beam in EBM; thus, the printable materials are limited, and cost of the printing process is high.
DED is generated from electroplating method which has been widely applied in the manufacturing and plating of cuprum (Cu), aluminum (Al), zinc (Zn), nickel (Ni), chromium (Cr), and many other metal materials [13-15].
Zhang: Materials Research Innovations Vol. 18 (2014), p.
Müller: Materials Science and Engineering A Vol. 298 (2001), p. 110–119 [8] D.
Schreve, and N. de Beer: Rapid Prototyping Journal Vol. 12 (2006), p. 42-52 [9] B Utela, D Storti, R Anderson, and M Ganter: Journal of Manufacturing Processes Vol. 10 (2008), p. 96–104 [10] I Zein, DW Hutmacher, KC Tan, and SH Teoh: Biomaterials Vol 23 (2002), p. 1169–1185 [11] A Simchi, F Petzoldt, and H Pohl: Journal of Materials Processing Technology Vol. 141 (2003), p. 319-328 [12] D Cormier, O Harrysson, and H West: Rapid Prototyping Journal Vol. 10 (2004), p. 35-41 [13] JP Healy, D Pletcher, and M Goodenough: Journal of Electroanalytical Chemistry Vol. 338 (1992), p. 155-165 [14] L Benea, PL Bonora, A Borello, and S Martelli: Wear Vol. 249 (2001), p. 995-1003 [15] SC Wang, and WCJ Wei: Materials Chemistry and Physics Vol. 78 (2003), p. 574-580 [16] XM Shen, M Nagano, WQ Peng, YF Dai, and K Yamamura: Key Engineering Materials Vol. 523-524 (2012), p. 276-280 [17] XM Shen, YF Dai, WQ Peng, M Nagano, and K Yamamura: Key Engineering Materials Vol. 516 (2012), p.