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Optimization of Particle Size and Distribution by Hydrostatic Extrusion Malgorzata Lewandowska1, a, Kinga Wawer1,b 1 Warsaw University of Technology Faculty of Materials Science and Engineering, Woloska 141, 02-507 Warsaw, Poland a malew@inmat.pw.edu.pl, bkingac@inmat.pw.edu.pl Keywords: Hydrostatic extrusion, nanostructured materials, processing, microstructure, second phase particles Abstract.
SPD processed materials exhibit very high mechanical strength [10-11] which can not be achieved using conventional techniques of materials fabrication and thus are prospective for structural and functional applications.
Materials and Methods The materials used in the present study were 2017 and 43300 aluminium alloys.
The materials in initial state had the form of 20 mm rods.
Kurzydłowski: Journal of Microscopy 223 (2006) p. 272-274 [10] R.Z.

Therefore, research on the morphology of the second phase of spray forming Al-8.5Fe-1.3V-1.7Si heat-resistant aluminum alloy is of great significance to subsequent densification processing for alloy and improve the performance of materials.
Journal of Hunan University of Science & Technology, 2004, 19(2):37-41 [2] Subhash C K, Alan L Y, Michael J K.
Materials Science and Engineering A, 1993, 167(1-2): 11~21 [3] Lee J C, Lee S, Lee P Y, et al.
Materials Science and Engineering A, 1994, 189: 291~299 [5] SUN Yu-feng, REN Chen-xing, SHEN Ning-fu, et al.
Journal of Materials Science Letters, 1990, 9(5):633-635 [7] TANG Yi-ping.

Materials and Methods Material Preparation: Clay Sample.
Adefila, Immobilization of cassava linamerase on kankara kaolinite clay, Journal of Natural Science Research 41 (2006) 1864-1874
Sayong clay material for biocatalyst immobilization, Material Science Forum, 737 (2013) 145-152
Pajares, Passivation of a montmorillonite by the silica created in acid activation, Journal of Material Chemistry 2 (9) (1992) 907-911
Rigi, Effect of acid activation on structural and bleaching properties of a bentonite, Iranian Journal of Materials Science & Engineering, 8 (4) (2011) 50-56

The value calculated by failure strength fomula and the experimental value were ,contrasted to study the parameters and value of the strength calculating formula,, and drawn the conclusions as follows: The φ18 and φ25 GFRP bars' failure strength is effected by fiber materials, enhance materials itself and interface performance.
But for the size of the proportion, it should be studied further.In addition, other factors cannot be evaluated by a simple test, for example, processes, materials, microstructure and other aspects , and these aspects need further study in future.
GFRP bars' production processes and materials microstructure also need further research.
China Civil Engineering Journal, 2007,40(8).74~78.
Mesoscopic failure mechanism and strength of the composites[M].Science Press,2002,9.

Attempts at reducing κ have included increasing the phonon scattering by incorporating fine-grain size materials, and addition of a small quantity of nanophase [3].
In recent years, chemically stable particles were dispersed in thermoelectric materials for reaching an enhancement of ZT.
Vandersande, �anostructured Materials, Vol. 5 (1995), p. 207
Ohno, Journal of Alloys and Compounds, Vol. 346 (2002), p. 285； [11] X.
Wang, Materials Science and Engineering B, Vol. 117 (2005), p. 334.

He, Tensile Testing on Formability of Different Gauge Tailor-Welded Blanks, The Open Materials Science Journal. 5 (2011) 89-92
[2] Brad Kinsey, Zhihong Liu, Jian Cao, A novel forming technology for tailor-welded blanks, Journal of Materials Processing Technology. 99 (2000) 145-153
Lee, Tailor-welded blanks of different thickness ratios effects on forming limit diagrams, Journal of Materials Processing Technology 132 (2003) 95–101
Materials & Design. 30 (2009) 3235-3242
Martins, Single point incremental forming of tailored blanks produced by friction stir welding, Journal of Materials Processing Technology. 209 (2009) 811-820

The cellular automaton (CA) method is an effective technique used to simulate the grain evolution of materials.
Computational Materials Science 23 (2002).
Materials Science and Engineering.
Transactions of Materials and Heattreatmen, vol26, no.4, August (2005), p120-125 [6]J.W.ZHAO, H.DING, W.J.ZHAO, etc.
Journal of Materials engineering, 2009(5), p43-48 [9] Zhaoyang Jin , Zhenshan Cui.

Levi, Emerging materials and processes for thermal barrier systems, Current Opinion in Solid State and Materials Science 8(1) (2004) 77-91
Zhu, Effects of doping on thermal conductivity of pyrochlore oxides for advanced thermal barrier coatings, Materials Science and Engineering: A 459(1) (2007) 192-195
Kutty, Radiation stability of gadolinium zirconate: A waste form for plutonium disposition, Journal of Materials Research 14(12) (1999) 4470-4473
Jana, Estimation of single-ion anisotropies, crystal-field and exchange interactions in Gd-based frustrated pyrochlore anti-ferromagnets Gd2M2O7 (M=Ti, Sn, Hf, Zr), Journal of Magnetism and Magnetic Materials 323(24) (2011) 3202-3209
Dong, Dielectric and Conduction Properties of Lu3NbO7 Transparent Ceramic, Materials Science Forum 898 (2017) 1681-1685

In this study, SPW is tested for use as a sound-absorbing material by first converting it into composite materials.
These days, the investigation of sound-absorbing materials in the literature has centered on composite materials that are often made from waste products.
Unsaturated polyester resin was used for manufacturing the composite materials.
Materials and Methods Sago pith waste (SPW) used for manufacturing the composite materials in this study was obtained from a nearby sago processing factory in Lhokseumawe, Aceh, Indonesia (Fig.1(a)).
X., and Lawai, V., “Production of Fire-Retardant Sound-Absorbing Panels from Sago Waste,” Journal of Tropical Forest Science, Vol. 25, No. 4, 2013, pp. 510–515.

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.