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This collection includes research results reflecting the solution on the main task of material science - research of the structure of materials.
The presented articles devoted to the study of the structure of the materials at the nanoscale using real experiment and computer modeling.
We hope this collection will be useful and interesting for many researchers and engineers from the area of the modern materials science.

In this paper, the basic concept, function and application of intelligent materials were introduced, some key problems such as knowledge base, reasoning machine were explained, at last, the application prospect of intelligent materials were analyzed. 1 Characteristic and application of intelligent materials Intelligent materials were new materials that emerged and developed rapidly in the world.
Then this will give these materials, structure the bionic function and make them “intelligent”, this type of materials were called intelligent material.
In recent years, the development of science and technology injected new vitality to the development of the intelligent materials, science and technology workers began to process these four kinds of functions of intelligent materials respectively, and design them separately according to the need, manufactured a variety of excellent intelligent materials.
References [1]Gao Shuya, Intelligent Materials and Their Application on Some Fields, Journal of Shanxi University of Science & Technology, Vol.22 (5) (2004), p.163-166
[2] He Changcheng, Gu Zhenya, Discussion about Intelligent Materials Concept, Journal of Tian Jin Industrial University, Vol .20(5) (2001)

Materials and methods Biomaterials.
Method of processing composite materials.
Table 2 The results of single factor tests for processing composite materials No.
The ratio of composite materials.
Abdel-Aal: The Open Food Science Journal, 4(2010), p. 7-22

Research Progress on Carbon Nanotubes Reinforced Cement-based Materials Bao-min Wang1, Shuai Liu1,* and Yu Han2 1Institute of Building Materials, Dalian University of Technology, Dalian 116024, China 2LiaoNing Building Science Research Institute, Shenyang 110005, China *E-mail: meliushuai@163.com Keywords: Carbon nanotubes (CNTs); cement-based materials; research progress Abstract: For their remarkable properties, carbon nanotubes (CNTs) are considered as promising candidate for next generation of high performance and functional cement-based composites in 21st century.
Journal of Materials Engineering and Performance. 22 (2013) 184-189. ] Carbon nanotube (CNT) study was firstly published by Iijima in 1991.[[] S.
The microstructure of CNTs cement-based composite materials was analyzed through SEM , found that the surfaces of carbon nanotubes in composite materials were coated by cement hydration products, the structure of CNTs cement mortar was close-grained.
Smart Materials and Structures, 18 (2009) 055010. ], from university of Minnesota, studied the piezoresistive properties of CNTs cement-based composite materials.
There are a large number of scholars committed to the study of CNTs dispersity. [[] Jiang Linqin，Gao Lian．Effect of Chemical Treatment on the Dispersion Properties of Carbon Nanotubes．Journal of Inorganic Materials. 18 (2003) 1135-1138. ,[] Cwiren A, Habermehl-Cwirzen K, Penttala V.

Such structures are relevant for use in various branches of technology, in particular aircraft construction, mechanical engineering, materials science, which require the manufacture of products with increased operational properties at minimal financial costs, as well as reducing the cost of finished products [7].
Thus, the study of the properties of powder materials using computer modelling is an urgent task of materials science.
Full-scale powder bulk materials for forming structurally inhomogeneous materials (aluminum, d = 0,15-0,2 mm, P = 25%) Fig. 1.
Heng-wei, Sintering driving force of Al2O3 powders at the initial stage of pulse electric current sintering under thermoelastic diffusion, International Journal of Mechanical and Materials Engineering. 13 (2018) 2-8
Aslantas, A review on heat treatment efficiency in metastable β titanium alloys: the role of treatment process and parameters, Journal of materials research and technology. 9 (2020), 15360-15380

Composites Science and Technology, 2015, pp. 10-12
Journal of Functional Materials, 2011, pp. 759-761
Materials Review, 2009, pp. 507-510
Chinese Journal of Acoustics, 2009, pp. 266-270
Journal of Vibration Engineering, 2010, pp. 502-505

Moreover, the typical LCA case studies of cement, glass, ceramics, wall materials, insulation materials and other building materials were reviewed.
China is a big country in production and consumption of building materials, its output and consumption of cement, ceramics, glass, wall materials, insulation materials and other major building materials have ranked first in the world for many years.
Wall Materials.
Other Building Materials.
A review on LCA studies, Science of the total environment. 626 (2018) 927-940.

This study investigates the influences of slopes on objective friction measurements of different floor materials.
Thus, COF measurements under different slopes, floor materials and surface conditions were conducted in this study.
Especially for glycerol-contaminated floor, COF may worsen to zero no matter what the floor and shoe materials are.
Then the three tested floor materials were placed on the horizontal surfaces and ramp respectively.
Journal of Electromyography and Kinesiology, Vol. 18 (2008), p. 205-217

JOURNAL OF FUNCTIONAL MATERIALS, 2015, 46(03):3016-3022
JOURNAL OF MATERIALS ENGINEERING, 1999(12):3-5
Materials engineering, 2013(1):52-57
Composites Science and Technology, 2019
ACS applied materials & interfaces,2019

Then, powder materials was used to improve the fatigue characterization of composite materials reinforced by fiber materials [6-12].
[3] 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)
[37] Fahad M Kadhim, Jumaa S Chiad and Ayad M Takhakh, Design And Manufacturing Knee Joint for Smart Transfemoral Prosthetic, IOP Conference Series: Materials Science and Engineering, International Conference on Materials Engineering and Science, 454 (2018)
[49] 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)
[80] 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)