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To overcome this difficulty, the ceramic superconducting material is often put into a metal sheath and drawn into a thin composite wire [2,3].
This is understandable because EPR itself is an amorphous material.
Obviously, EPR is present in the grain boundaries of the composite material and still exists even after sintering at 600°C.
Acknowledgements This work was supported by National Natural Science Foundation of China (Project No.: 60571063).
Setojima: Physica C, Vol. 378-381 (2002), p. 838 [5] Shi lei, Chen li, Zhang Huarong and Zhu Qing-Ren: Journal of Low Temperature Physics Vol. 25 (2003), p. 187 [6] N.

Mechanical Properties of LaB6-ZrB2 Composites Guanghui Mina , Ruilan Gaob , Huashun Yuc and Jiande Han d School of Materials Science and Engineering, Shandong University, Jinan, China a ghmin@sdu.edu.cn, bgaoruilan@mail.sdu.edu.cn, cyuhuashun2002@yahoo.com.cn, d hjd0531@163.com Key words: LaB6-ZrB2 polycrystalline, mechanical properties, fracture mechanism Abstract.
The fracture behavior of the composites was analyzed in the paper Introduction Lanthanum hexaboride (LaB6) is an excellent material for cathode emission which was found by Lafferty in 1951 [1].
Zhang: Journal of Rare Earths 15 (1997), p. 304

LTPL was used to assess the material purity and to identify SFs.
Acknowledgements: This work was supported by the Swedish Research Councils (VR) as well as the Swedish Government Strategic Research Area Grant in Materials Science.
Bergman, Influence of structural defects on carrier lifetime in 4H-SiC epitaxial layers: Optical lifetime mapping, Journal of Appl.

Introduction As a kind of commercial material, iron is widely used in many fields, but the easy corrosion property limits its application.
Voss: Journal of Nuclear Materials, Vol. 249 (1997), p. 39 [2] H.
Xu: Applied Surface Science, Vol. 253 (2007), p.8398

Introduction As an important characteristic of materials, structural damping is always unnegligible in engineering vibration and structure control.
In order to respond to the stress-strain relation of material better and eliminate the dependency on excitation frequency of damping force, the complex damping is used, which says the damping force is proportional to displacement and in phase to velocity [2].
Introduction to Engineering Wave Theory[M].Beijing: Science Press,2002.
(in Chinese) [4] Huidong Zhang, Yuanfeng Wang：submitted to Journal of Shenyang Jianzhu University（2009) (in Chinese) [5] Lingbo Liu, Xiuli Du.

General the structure of a FTS is made by a whole metal material, so the stiffness, natural frequency and other parameters are fixed, to adjust the flexible hinge, the entire structure need to design and processing, that could not be partially replaced by specific structure[1].
Fig.2 Flexible Hinge 16 Convex head, 17 hinge, 18 hinge hole, 19 L shape underside The material of the flexible hinge 5, moving block 6 and frame 9 can be different, so as to pursuit the best overall results.
Four flexible hinge material is Invar steel, other part is 304 steel.
Acknowledgements This work was financially Supported by Guangdong Innovative Research Team Program（No.201001G0104781202), and also supported by the Guangdong Provincial Science and Technology Project (2012B011300027, 2012B091000028).
Further discussion about the natural frequency of the spring vibrator. 1994-2010 China Academic Journal Electronic Publishing House.

This method can only be used to analyze the strength of components with regular shape and the material must be distributed uniformly.
(3) The material selected for the runner hub is ZG20SiMn which has isotropy.
Maximum stresses and maximum deformations under different conditions Name Gravity condition Rated operating condition Two-phase short circuit condition Emergency shutdown condition Maximum stress (MPa) 39.6 77 74.5 68.4 Maximum deformation (mm) 0.153 0.632 0.633 0.748 It can be seen from table 1 that, the largest deformation is 0.748mm under the emergency shutdown condition, the largest stress is 77MPa under the rated operating condition which is far less than the allowable stress of 235MPa of the selected material ZG20SiMn.
Journal of Hydroelectric Engineering, pp96-101, (2001)
Science and Technology Consulting Herald, pp55-57(2007).

Cutting tools with different types and parameters should be selected according to the material, shape, size and machining accuracy of the work piece, when machining the shooting holes.
Types, sizes and materials of the cutter should be input into the UG/CAM system.
Acknowledgments The research was supported by the development of science and technology plan projects (policies to guide class) No. 2014 zc0207,Binzhou, China.
Journal of Measurements in Engineering, 1(3), pp. 137-142, 2013

Introduction Among the nitrogen heterocyclic compounds, 2,5-disubstituted 1,3,4-oxadiazole is a kind of highly privileged derivative which exhibit broad of considerable interest in organic light emitting diodes, photoluminescence, polymers, and material science [1-2].
Experimental Materials and Instruments.
Journal of Hebei Normal University, 35(2011):63-65.

Introduction The leaky wave implies when wave propagate along the interface of two medium, its wave energy is leaking from one type of material into the other, which are widely used for material characterization in various ultrasonic techniques [1,2].
Table1 The parameters of Plexiglas and Aluminum Medium Material Density(kg/cm3) longitudinal velocity (m/s) Shear velocity (m/s) 1 Plexiglas 1140 2660 1250 2 Aluminum 2790 6320 3130 Fig.2 The schematic diagram of the experimental measurement setup 2.
* This work was supported by the Fundamental Research Funds for the Central Universities of Hohai University (No:2011B11014)，and the Natural Science foundation of China Grant No. 10974044.
Journal of applied geophysics Vol.68 (2009),p.117