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Introduction Polymeric materials in the process of operation and recycling undergo significant changes in structure and molecular weight.
Conclusion Thus, the experimental data obtained suggest that the proposed technique can be used as an express method for testing stabilizers of polymeric materials.
Wiles, Thermal degradation of poly(aryl-ether-ether-ketone) (PEEK) as monitored by pyrolysis-GC/MS and TG/MS, Journal of analytical and applied pyrolisis. 18 (1990) 163
Khashirova, Thermal stability of polyetherketones, Materials Science Forum. 935 (2018) 31
New Method of Investigation of Polysulfone Thermal Destruction, Polymer Science, Series B, 2017, 59, (2017) 216.

For quasi-brittle materials with week peak strain such as concrete, the results will be influenced significantly due to the bad joint between ends of specimen and SHPB[9].
(3) Strain rate effect happens due to that fiber concrete materials have a different failure process and constraints under static and dynamic loads.
ACI Materials Journal,1995, 92(1): 37-47 [4]Zhi-Liang Wang,Yong-Sheng Liu,R.F.
Construction and Building Materials 22 (2008) 811–819 [5]Hu Shisheng,Wang Daorong,Liu Jianfei.
University of Science and Technology of China,May, 2006,81-85 [7]Yan Shaohua,Li Zhicheng,Wang Mingyang, et al.

Process and Properties on the Precision Forming of Spline Cold Rolling Zhiqi Liu1,2, a, Jianli song2,b, Yongtang Li2,c, Xudong Li 1,d Mingfu Wang2,e , 1 State Key Laboratory of Gansu Advanced Non-Ferrous Metal Materials, Lanzhou University of Science & Technology, Lanzhou 730050 ,China; 2 School of Materials Science and Engineering, Taiyuan University of Science & Technology, Taiyuan 030024,China alzq_678@yahoo.com.cn, bsongjianli06@sina.com, cliyongtang@tyust.edu.cn, dlixd@lut.cn，ewmf354@163.com, Keywords: cold rolling forming, plastic flow of metals, distribution of hardness Abstract.
Materials flow analysis of the tooth outline Parts of the formed spline components are shown in Fig.3(a).
Deformation flow seldom occurred on the materials below the root of the tooth.
The materials flow along the side flank of the tooth round the bottom of the tooth angle.
Domblesky, Feng Feng: Wire Journal International, Vol .34 (2001),p110 [5] Wu Xiuyi: Machinery Manufacturing Engineer. 1997,000 (001),p 15, in Chinese [6] Zheng Quangang: Automobile Technology & Material. 1997,000 (007),p16, in Chinese [7] Li Yongtang, Song Jianli, Zhang Dawei, et al:Materials Science Forum, 2007, 575-578,p416 [8] LIU Zhi-qi, LI Xu-dong, LI Yong-tang: Journal Of Lanzhou University Of Technology.

Higashi: Materials Science Forum Vol. 419-222 (2003) [3] Z.Y.
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Shu: Materials Science and Engineering A, Vol. 515 (2009), p. 152 [10] G.H.
Mitchell: An introduction to Materials Engineering and Science: for Chemical and Materials Engineers (Jone Wiley & Sons, Inc., USA, 2004) [13] Q.M.
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It is a very excellent wall material since it could not only protect the inside of the material from oxidization but also has a controlled release effect.
Materials and Methods A.
Materials All reagents used in the study were of highest purity available and were purchased from Tianjin Kermel Chemical Reagent Co., Ltd, China.
It was well known that poly (vinyl alcohol) (PVA) is one of the polymeric materials for making emulsifier.
[8] LAN T., HAO H., BI M., LI T. and ZHAO Y.L, “A study on preparation of plla microspheres,” Journal of Northwest University (Natural Science Edition), China, vol. 38, Aug. 2008, pp. 584-586

Test Method Raw materials and laboratory apparatus
The characteristic had some significance to the selection of fireproof materials.
EL-Hakim: Cement and Concrete Research Vol. 35(2005), p. 590-596 [3] Leyla Tanaçan, Halit Yaşa Ersoy and Ümit Arpacıoğlu: Construction and Building Materials Vol. 23(2009), p. 1240-1248 [4] Guoqiang Li, Venkata D and Muthyala: Materials Science and Engineering Vol. 478(2008), p. 77-86.
Middendorf: Materials Characterization Vol. 60(2009), p. 741-748 [7] R.M.
[11] Xiuxin Fu, Zhihua Pan and Dongdong Wang: Journal of Nanjing University of Technology (Natural Science Edition) Vol. 31(2009), p. 106-110.

Schmuki: Current Opinion in Solid State and Materials Science, Vol. 11 (2007), p. 3
Xu: Journal of Hazardous Materials,Vol. 252– 253 (2013), p. 115
Peng: Journal of Hazardous Materials B., Vol. 139 (2007), p. 310
Sreekantan: Advanced Materials Research Vol. 772 (2013), p 365
Kumar: Materials Science and Engineering B, Vol. 166 (2010), p. 1.

Materials and Methods Materials.
Open Journal of Composite Materials. 06(2016), 59-68
Journal of Materials Science. 43 (2008), 3101-3111
ACI Materials Journal. 95(1998), 617-630
Journal of Zhejiang University SCIENCE A, 14(2013), 459-468

Ezugwu, An overview of the machinability of aeroengine alloys, Journal of Materials Processing Technology,134 (2003), pp.233-253
Choudhury, Machinability of Nickel - base super alloys: a general review, Journal of Materials Processing and Technology,77, (1998), pp.278-284
Bradbury, A comparison of the performance and wear characteristic of HSS saw blades machining Nimonic PK31, AISI O1 Tool Steel, Inconel 600 and AISI 1018 Carbon Steel, Journal of Materials Science, 35, (2000), pp.1511-1524
Prakash, Application of Fine Grained Tungsten Carbide Based, Journal of refractory metals and hard materials, 13, (1995), pp.257-264
Fernenades, Cemented carbide phase diagrams: A review, International Journal of Refractory Metals and Hard Materials, 29(4), (2011), pp.405-418.

Recently, these characteristics are significantly different from those of the bulk materials that have been studied[6].
Conclusions In summary, a series of ferrocenylethene derivatives were obtained via solvent-free Wittig Reaction in one-pot process in room temperature for 30-90 minutes, which provides a simple approach to synthesize potential nonlinear optical materials as well as other functional pigments.
Journal of the American Chemical Society 2008;30(23):7204-7205
New Journal of Chemistry 2006;30(6):901-907
Journal of the American Chemical Society 1963;85(3):316-324.