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Introduction With the development of science and technique the need for new materials with specific properties increases, which cannot be fabricated by traditional technologies.
International Materials Reviews. 62(4) (2017) 203-239
Yi, The application of self-propagating high-temperature synthesis of engineered porous composite biomedical materials, Materials and Manufacturing Processes, 22(4) (2007) 481-488
Chu, Fabrication of porous NiTi shape memory alloy for hard tissue implants by combustion synthesis, Materials Science and Engineering, A366.1 (2004) 114-119
Aboutalebi, Numerical simulation of combustion synthesis of aluminide intermetallic compounds, Iranian Journal of Materials Science & Engineering, 7(2) (2010)

Experiment description Materials.
Fatty acids as phase change materials: a review.
Preparation and characterization of lauric-myristic-palmitic acid ternary eutectic mixtures/expanded graphite composite phase change material for thermal energy storage, Chemical Engineering Journal, 231(2013)214-219
Preparation and properties of lauric acid-stearic acid/expanded perlite composite as phase change materials for thermal energy storage, Materials Letters, 67(2012)352-354
Preparation, Encapsulation and Thermal Properties of Fatty Acid /Expanded Graphite Composites as Shape-stabilized Phase Change Materials, Chemical of journal of Chinese universities, 33(2012)526-530

Research on the Simulation of Friction Material Surface Topography Run Bo Ma 1,a, Shi Meng Xu 1 and Jian Hua Du 2 1Section of Mathematics, Academy of Armored Force Engineering, Beijing 100072, P.R.China 2Department of Equipment maintenance and Remanufacturing, Academy of Armored Force Engineering, Beijing 100072,P.R.China a13810470589@139.com Key words: composite materials; fractal interpolation; asperity; non-parametric hypothesis test Abstract.
Through analysis and research on the surface topography of reinforced copper matrix composite materials, taking advantage of fractal statistical method to discuss distribution law about characteristics parameter which symbolizes the asperity, combining Monte-Carlo method with fractal theory to set up mathematics model of characteristics parameter which symbolizes size of asperity , talking about the construction of iterated function system in fractal interpolated theory, a easy realizable friction materials surface topography simulation algorithm was put forward.
Let friction material plane is a square with bound length L, noting and as maximum diameter and minimum diameter respectively, and is number of asperity.
In conclusion, friction material surface topography simulation map was given in figure 1.
Journal of Tribology (ASME), 1991, 113: 1–11

A functionally graded material (FGM) is one of the materials that combine the advantage of ceramic and metallic materials together.
Sun, Journal of Materials Science: Materials Medicine. 22 (2011) 1633-1638
Du, Biomedical Materials. 5 (2010) 1-7 [13] K.
Hironobu, Journal of Biomechanical Science and Engineering. 4(3) (2009), 392-403
Basu, Journal Materials Science: Materials Medical. 21 (2010), 1817-1828.

Faculty of Urban Construction and Environmental Engineering, Chongqing University, Chongqing, 400030, China 3 School of Environment Science and Engineering, Tianjin University, Tianjin, 300072,China afengguohui888@163.com, bhuangkailiang_v@163.com, cgirl_liuxin@163.com, dHj_lhx@sjzu.edu.cn Key words: phase change material; floor heating; thermal storage; solar energy Abstract.
Integrating phase change materials into floor heating system, which is a effective method of optimizing using solar energy and other non-continuous energy for heating, greatly improve the heat storage and exchange capacity.
Fig. 2 Structure for phase change material floor Fig. 1 Operation principle of hot water FHSPC Differential scanning calorimeter (DSC) was used to choose capric acid as the main energy storage material.
Journal of Shenyang jianzhu University(Natural Sciences) .Vol. 22-2 (2006) p.294-298 (in Chinese) [4] Qunli Zhang, Hongfa Di, Kunping Lin, etc.
Journal of Engineering thermophysics.Vol. 27-4 (2006) p. 641-643 (in Chinese) [5] Francis Agyenim, Neil Hewitt, Philip Eames, Mervyn Smyth.

*aE-mail: daliaadilalalali84@gmail.com, bmaisb58@gmail.com, caljaraah_muhammad@yahoo.com Keywords: brick powder, iron filings, waste materials, concrete mix.
The Materials Cement Iraqi ordinary Portland Cement was used in the preparing of the specimens of this study to avoid the harmful effect of humidity on the cement it was stored in dry place.
Tagnit-Hamou, et G.Ballivy , Canadian Geotechnical Journal, 39(4) (2011) 960- 970
Mahzuz., A.A.M Ahmed. and M.A Yusuf., African Journal of Environmental Science and Technology, 5 (2011) 381-388
Ghernouti, International Conference on Environment Science and Engineering 83(6) (2015).

Kaiser, Physical behaviour of thermally affected bronze and brass, Journal of Mechanical Engineering Science and Technology. 4(1) (2020) 1-13
Nur, Study of mechanical and wear behaviour of hyper-eutectic Al-Si automotive alloy through Fe, Ni and Cr addition, Journal of Materials Research. 21(4) (2018) 1-9
Kaiser, Wear behavior of commercial pure copper with Al and Zn under dry, wet and corrosive environment, Journal of Materials and Environmental Sciences. 11(4) (2020) 551-563
Brodnikovskyy, Solid solution strengthening in multicomponent fcc and bcc alloys: Analytical approach, Progress in Natural Science: Materials International, 31(1) 2021 95-104, [20] S.
Kaiser, Influence of aluminium and zinc additives on the physical and thermal behaviour of cast copper, Journal of Sustainable Structures and Materials. 3(1) (2020) 1-9

Investigation of Promoting Professional Practical Ability of Undergraduate Students in Materials Majors Guoli Du 1, a, Xiaoxin Feng 2, b 1Education Department, Tangshan Normal University, Tangshan 063000, China 2College of Materials Science and Engineering, Hebei United University, Tangshan 063009, China aemail: tsdugl@163.com, bemail: fengxiaoxin@tsinghua.org.cn KeyWords: structure of practical ability, cultivation, instructional strategies, material major Abstract.
Introduction Cultivating the applied talents is the main objective for materials majors in local universities.
This paper will present some viewpoint of instructional strategies which promote the practical ability of undergraduates in materials majors.
The principle knowledge includes basic discipline theories and special knowledge which are learned in such courses as Materials Physics, Materials Chemistry, Materials Science Foundation, Cement Technology, etc.
(In Chinese) [3] Hongjun Xing and Qingmei Chen: Journal of Capital Normal University (Natural Science Edition) Vol.26 No.3 (2005), p.41.

[3] Rhee, K.Y. et al., “Fabrication of aluminum/copper clad composite using hot hydrostatic extrusion process and its material characteristics”, Materials Science and Engineering: A, 384–1–2, (2004), pp. 70–76
[7] Wang, J. et al., “Study of the hot forging of weld cladded work pieces using upsetting tests”, Journal of Materials Processing Technology, 214–2, (2014), pp. 365–379
[8] Domblesky, J. et al., “Welded preforms for forging”, Journal of Materials Processing Technology, 171–1, (2006), pp. 141–149
[11] Xiong, J. et al., “Cellular automata simulation of dynamic recrystallization in rotary friction welding of pure copper”, Indian Journal of Engineering & Materials Sciences, Vol. 24, (2017), pp. 377-382
[14] Guo, Z. et al., “Modelling of materials properties and behaviour critical to casting simulation”, Materials Science and Engineering A, 413-414, (2005), pp. 465-469.

Researchers are fabricating composite materials using various filler materials to describe the wear performance of the composite, used as a machine component in industrial applications.
Composite materials show an excellent strength and less weight compared to existing materials in industrial applications whereas wear is an important property of the machine components.
Figure 3 shows the pull out and poor bonding of the glass fibers without any addition of filler materials.
Nallusamy and Saurabh Kumar, (2016), “Efficiency and lifespan enhancement of product with dissimilar material using different techniques”, Indian Journal of Science and Technology, Vol. 9(16), pp. 1-5 [18] Manjunatha, Niranjan and Satyanarayana, (2015), “Effect of mechanical and thermal loading on boron carbide particles reinforced Al-6061 alloy”, Materials Science and Engineering, Vol.
filled glass epoxy composites”, International Journal of Innovative Research in Science, Engineering and Technology, Vol. 3(7), pp. 14331-14338 [28] Kaundal R, Patnaik A and Satapathy A, (2012), “Effect of SiC particulate on short glass fiber reinforced polyester composite in erosive wear environment”, Walailak Journal of Science and Technology, Vol. 9, pp. 49-64