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Materials The rubber materials used in this study, NR, BR, and SBR, are available in the AL-Najaf Company of manufacturing Babylon Tires.
[19] Worood Hussein and Mohsin Abdullah Al-Shammari, Fatigue and Fracture Behaviours of FSW and FSP Joints of AA5083-H111 Aluminium Alloy, IOP Conference Series: Materials Science and Engineering, International Conference on Materials Engineering and Science, 454 (2018)
[52] Muhsin J Jweeg, Kadhim K Resan, Esraa A Abbod and Muhannad Al-Waily, Dissimilar Aluminium Alloys Welding by Friction Stir Processing and Reverse Rotation Friction Stir Processing, IOP Conference Series: Materials Science and Engineering, International Conference on Materials Engineering and Science, 454 (2018)
Hamzah, Muhannad Al-Waily, Mohsin Abdullah Al-Shammari, A Finite Element Simulation of Nano Effects on Stress Distribution in a Below Knee Prosthetic, 4th International Conference on Engineering Sciences, IOP Conference Series: Materials Science and Engineering, 1067 (2021)
[59] Emad Kadum Njim, Muhannad Al-Waily, Sadeq H Bakhy, A Critical Review of Recent Research of Free Vibration and Stability of Functionally Graded Materials of Sandwich Plate, IOP Conference Series: Materials Science and Engineering, 1094 (2021)

Synthesis and Properties of Diphenylquinoxaline as Electron-transporting materials LI Tingxi a, SUI Peng b, GAO Susu, KONG Na, WU Shasha, LI Shanting and NIU Zhanrui School of Materials Science and Engineering, Shandong Univesity of Scinece & Technology, Qingdao 266510, China alitx@sdust.edu.cn, bsuipeng412@163.com Key words: organic electroluminescent materi; electron-transporting materials; amide acylation reaction; bis-(2,3-diphenylquinoxaline); device.
The organic electroluminescent core materials include luminescence materials, hole-transporting materials and electron-transporting materials.
The sdudy of luminescence materials and hole-transporting materials has made great progress, but electron-transporting materials relatively lags.
As electron-transporting materials, it is widely used in organic electroluminescent devices.
Holmes: Nature Vol. (1990), p. 347 [4] Wang Xin, Shen Juan and Xu Hongyao: Journal of Functional Materials Vol. 39(2008), p.1555 [5] Zhang Xiaobing, Zhang Zimin, Zhang Yugui and Li Min: Chinese Journal of Organic Chemistry Vol. 29(2009), p.297 [6] Peng Zhang, Benchen Tang, Wenjing Tian, Bing Yang and Min Li: Mater.

The Analysis of Metallic Materials Subjected To Cycles of Thermal and Mechanical Fatigue Dragoş Cristian ACHIŢEI1,3,a, Petrică VIZUREANU1,3,b, Mirabela Georgiana MINCIUNĂ1,3,c, Mohd Mustafa Al Bakri Abdullah2,3,d, Andrei Victor SANDU1,4,e 1Gheorghe Asachi Technical University of Iasi, Faculty of Materials Science and Engineering, Blvd.
Ghosn, Srramesh Kalluri, (Effect of surface impulsive thermal loads on fatigue behavior of constant volume propulsion engine combustor materials, Elsevier – Surface & coatings technology, (2004), 188-189 [11] Hornbogen E., Review Thermo-mechanical fatigue of shape memory alloys, Journal of Material Science, Vol. 39, (2004) 385-399
[13] Jun Li, Shengru Qiao, Dong Han, Mei Li, Damage behaviors of TiAl alloy under thermal fatigue and thermal cycling with dead-load, Materials Science and Engineering A 471, (2007) 106-112
[21] Cai B, Ma X, Moering J, Zhou H, Yang X, Zhu X, Materials Science and Engineering A, 626 (2015) 144-149
[22] Sun Y F, Xu N, Fujii H, Materials science and engineering A - structural materials properties microstructure and processing, 589 (2014) 228-234

For sheet materials, hardening curves are plotted by recording the change in force and the change in the specimen strain.
Schpunkin. // Computer Methods in Materials Science. – 2008
Studying the Properties of Multilayer Sheet Materials (Issledovaniye svoystv mnogosloynykh listovykh materialov) / N.F.
Anisotropic Materials (Anizotropnye materialy).
Petrov // Key Engineering Materials. – 2014. – P. 1627-1636

Bruschi: CIRP Journal of Manufacturing Science and Technology, Vol. 1 (2008), No. 1, pp. 2-17
Chen: Journal of Materials Processing Technology, Vol. 212 (2012), No. 3, pp. 640-646
Chan: Materials Science and Engineering A-Structural Materials Properties Microstructure and Processing, Vol. 528 (2011), No. 13-14, pp. 4799-4806
Wang: Journal of Materials Science, Vol. 45 (2010) No.15, pp. 4067-4072
Eckstein: Journal of Materials Processing Technology, Vol. 125-126 (2002), pp. 35-44.

In this paper we presented results of investigation of carbonaceous-palladium materials obtained in the CVD (Chemical Vapor Deposition) process.
The authors [13] reported that the surfaces of graphite can be created from a wide range of organic materials in the CVD process at 800ºC.
Gokon: Advances in Science and Technology, (Volume 72) 5th FORUM ON NEW MATERIALS PART A (2010) 119-128
Ertl: Journal of Vacuum Science & Technology A: Vacuum, Surfaces, and Films April 1, Volume 1, Issue 2, (1983) 1247-1253
García de Abajo: New Journal of Physics 10 (2008) 105009 (13pp)

Risk Assessment Service Environment.Various factors affecting the sulfate attack of building materials are focused on two areas, one is environmental factor, and the other is properties of materials themselves.
Properties of materials and construction quality should be concern for concrete components with high risk of sulfate attack.
Influence of cement composition on concrete durability: ACI Material Journal (1992), p. 574-586
Durability of Portland cement-silica fume pastes in magnesium sulfate and sodium solutions: ACI Material Journal (1988), p. 148-157
The Classification of Main Soil Corrosion to Concrete Material in Our Country: Building Science (In Chinese), Vol. 19 (2003), p. 56-57.

Our results will provide valuable information for forensic pathology study. 1 Materials and Methods 1.1 Experimental setup A total of 30 Chinese tree shrews (males) with an average weight of 120±5.0 g were provided by the Experimental Animal Center of Kunming Institute of Zoology at the Chinese Academy of Sciences, China.
Journal of forensic medicine, 5 (2010) : 383-386
Chinese journal of traditional medical science and technology, 1 (2012) : 54-55
Journal of nanjing institute of physical education(natural science) , 1(2010 ) : 1-3
West China medical journal, 2(2003) : 293-294.

Near Surface Studies on the Role of Graphene Oxide in the Carbon Species Activities in IT-SOFC Cathode Materials D.
Materials and Methods Materials The Ba0.5Sr0.5Co0.2Fe0.8 powder was synthesized by using ethylenediaminetetraacetic (EDTA)-citrate solgel route technique.
This finding may open up the way to explore the potential of GO in IT-SOFC cathode materials application.
Specials thanks to Prof Aono Hiromichi at the Department of Materials Science & Biotechnology, Graduate School of Science and Engineering at Ehime University, Japan for help with XPS measurement.
Hultman, Progress in Materials Science 107 (2020) 100591 [15] Ayaka Fujimoto, Yasuhiro Yamada, Michio Koinuma, and Satoshi Sato, Anal.

It was found that the use of zirconia as matrix material does improve the toughness and strength compared to alumina based composites whereas the drawback of zirconia based materials concerning machinability and lower hardness can be only partially compensated by adjusting the titanium carbide content.
Electrical discharge machining (EDM) is an established process for machining of materials with high hardness such as hardened steel or cemented carbides for mold design and construction.
References [1] Chevallier, J.; Gremillard, L.: “Zirconia as a Biomaterial”, Comprehensive Biomaterials, Elsevier, , Volume 1: Metallic, Ceramic and Polymeric Biomaterials (2011) 95-108 [2] Hannink, R.H.J.; Kelly, P.M.; Muddle, B.C.: “Transformation Toughening in Zirconia-Containing Ceramics”, Journal of the American Ceramic Society, 83 [3] (2000) 461-487 [3] Claussen, N.: “Fracture Toughness of Al2O3 with Unstabilized ZrO2 Dispersed Phase”, Journal of the American Ceramic Society, 59, 1-2 (1976) 49-51 [4] Becher, P.F.: “Slow Crack Growth Behavior in Transformation-Toughened Al2O3-ZrO2(Y2O3) Ceramics”, Journal of the American Ceramic Society, 66 [7] (1983) 485-488 [5] Lange, F.F.: “Transformation toughening – Part 4 Fabrication, fracture toughness and strength of Al2O3-ZrO2 composites”, Journal of Materials Science, 17 (1982) 247-254 [6] Fukuzawa, Y.; Tani, T.; Iwane, E.; Mohri, N.: “A New Machining Method for Insulating Ceramics with an Electrical Discharge Phenomenon”, Journal of
the Ceramic Society of Japan, 103, 10 (1995) 1000-1005 [7] Liu, Y.H.; Ju,R.J.; Li, X.P.; Yu, L.L.; Zhang, H.F.: “Electric discharge milling of insulating ceramics”, Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture, 222 (2008) 362-366 [8] Fukuzawa, Y.; Mohri, N.; Gotoh, H.; Tani, T.: “Three-dimensional machining of insulating ceramics materials with electrical discharge machining”, Transactions of Nonferrous Metals Society of China, 19 (2009) 150-156 [9] Hösel, T.; Cvancara, P.; Ganz, T.; Müller, C.; Reinecke, H.: “Characterisation of high aspect ratio non-conductive ceramic microstructures made by spark erosion”, Microsystem Technologies, 17 (2011) 313-318 [10] Lauwers, B.; Kruth, J.P.; Eeraerts, W.; Schacht, B.; Bleys, P.: “Investigation of material removal mechanisms in EDM of composite ceramic materials”, Journal of Materials Processing Technology, 149 (2004) 347-352 [11] Salehi, S.; Van der Biest, O.; Vleugels, K.: “Electrically
-C.: Microstructure and tool electrode erosion in EDMed of TiN/Si3N4 composites, Materials Science and Engineering, A363 (2003) 221-227 [14] Liu, K.; Reynaerts, D.; Lauwers, B.: “Influence of the pulse shape on the EDM performance of Si3N4-TiN ceramic composite”, CIRP Annals – Manufacturing Technology, 58 (2009) 217-220 [15] Landfried, R.; Kern, F.; Burger, W.; Leonhardt, W.; Gadow, R.: “Wire-EDM of ZTA-TiC composites with variable content of electrically conductive phase”, Key Engineering Materials, Vols. 504-506 (2012) 1165-1170 [16] Landfried, R.; Kern, F.; Gadow, R.: “Electrical Discharge Machining of Alumina-Zirconia-TiC Composites with varying zirconia content”, Key Engineering Materials, Vols. 554-557 (2013) 1916-1921 [17] P.