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The Analysis of the Interface States of Low-density Materials in the Forming Process Qiaoli Wang1, a, Yudong Zheng1, b*, Xin Liang2, c, Ying Ling2, d, Kun Qiao1, e, Yonglin Kang1, f, Guoming Zhu1, g 1School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China 2Institute of Aerospace Materials and Technology Beijing, Beijing, China awangqiaoli@163.com, bzhengyudong@mater.ustb.edu.cn, cliangxbj@163.com, dkuangslian@vip.sina.com, e12208374@qq.com, fkangylin@mater.ustb.edu.cn *Corresponding author.
The interface of two low-density materials is bent in the forming process, which decreases the performance of materials.
The decay rates of frictional force of these two materials are △fa, △fb .
Adam: Journal of Materials Processing Technology Vol. 107(2000), p. 267 [7] A.
Ebrahimi: Materials and Design Vol. 31(2010), p. 493

The material removal is investigated in electrorheological (ER) fluid-assisted polishing of conductive materials.
This paper attempts to set up an analytical model for material removal in ER fluid-assisted polishing of conductive materials.
Principle of ER fluid-assisted polishing The principle of the ER fluid-assisted polishing of conductive materials is schematically shown in Fig.1.
Lee, Journal of Materials Processing Technology. 155-156 (2004) 1293-1299
Kong, Journal of Materials Processing Technology. 209 (2009) 4954-4957

Building materials constitute about 60%-70% of the total cost of construction.
Reduction in the use of conventional materials may not be possible; therefore, an alternative solution to use low cost materials would reduce the overall construction cost of a building.
Thus the alternative building materials which are to be replaced by the conventional materials should be made from waste or locally available materials to minimize environmental pollution and reduce overall construction cost [5] .
Khan, “Strength characteristics of low cost flyash brick masonry”, International Journal of Science, Environment and Technology, ISSN 2278-3687 (O) , Vol. 3, No 3 (2014) 976 – 980
Samer, “Towards the implementation of the Green Building concept in agricultural buildings”, a literature review CIGR Journal , Vol. 15, No.2 25, (July 2013) [12] Swetha madhusudanan, Lilly Rose amirtham, “Sustainable building materials and materials for energy efficiency “, Trans tech publications, ISBN-13:978-3-03835-490-1, periodical of Key engineering materials vol.650, (2015).

Combination of phase change materials with building materials Phase change building material(PCBM) is a composite of phase change materials and building materials.
It can make the traditional building materials into phase change materials building materials according to different requirements.
Hefei:University of Science & Technology China press,1996:1
Journal of Tianjin University of Technology, 3 (2008) 63-66
Journal of Building Materials, 4 (2003) 386-390

If the testing position is on reinforcement materials, hardness is higher than the one in which the position is on based materials.
References [1] J.W.Kaczmar, K.Pietrzak, W.Wlosinski.: Journal of Materials Processing Technology.
Wlosinski.W.: Journal of materials processing technology.
Velasco. : Journal of Materials Processing Technology.
Vol.133(2003), p. 203 [6] Lu, Yi-Zhong, Wang Bao-Shun, Cui Yan etal.: Journal of Aeronautical Materials.

Based on the gradient source representation of functionally gradient materials Qiang Li1,2, a , Mingqing Wu1,b 1Shandong Transport Vocational College, Shandong Weifang, 261206, China; 2School of Transportation Science and Engineering, Beihang University, Beijing, 100191, China; aljzylq@126.com; bwmq1977@qq.com  Keywords: functionally gradient material (FGM), grading source,function image Abstract.
Therefore, in the course of modeling, functional gradient materials are generally a one-dimensional entity model.
The information mathematical description of functionally gradient materials The material composition array: Define an array of for functionally gradient materials entity within the material composition of each.
References [1] CHENG Xiao-nong,DAI Qi-xun,ZHAO Yu-tao.et a1．Developmem of materials calculation design.journal of Jiangsu university,2003,24 (1): 15-18(in chinese) [2] Siu.Y K,Tan.S.T.”Source based” hererogeneous solid modeling.Computer Aided Design, 2002, 34 (1);41-55 [3] WU Xiao-jun,LIU Wei-jun,WANG Tian-ran.Heterogeneous material objects modeling for 3D CAD part.Chinese Journal of Mechanical Engineering,2004,40 (5):111-117.
(in chinese) [5] Zhou Manyuan,Xi Juntong,Yan Junqi.Modeling and processing of functionally graded materials for rapid prototyping.Jourmal of Materials Processing Thecnology,2004,146(3):396-402.

Modelling of Mass Transport in Porous Materials: Analytical Solutions and Analysis Antonio F.
In this paper approximate analytical solutions to mass transport equations in porous materials with both constant and non-constant diffusion coefficients are presented.
Many problems of practical importance related with mass transport in finite porous materials take place under periodic boundary conditions being the period being of few minutes to several months and years [2].
Journal Thermal Sciences 44 (2005) 720-725 [5] A.
Miguel, Effect of air humidity on the evolution of permeability and performance of a fibrous filter during loading with hygroscopic and non-hygroscopic particles, Journal of Aerosol Science 34 (2003) 783-799 [9] A.

This includes waste generated in the production of building materials.
One of the waste materials obtained during the board processing is a fine powder.
Fine waste material from the production of CETRIS board. 3 Materials 3.1 Basic properties of the raw waste material First, the density of the dry raw material must be determined.
The density of finely ground materials is determined using a pycnometer according to ČSN EN 1097-6 [18].
World Journal of Science, Technology and Sustainable Development, 12(3), 233–242. https://doi.org/10.1108/WJSTSD-03-2015-0016 [2] Bonoli, A., Zanni, S., & Serrano-Bernardo, F. (2021).

Study on Fire Prevention of Wall Insulation Organic Materials Wang Pengxiang1, Zhang Cunwei2, Li Xiangmei3, Yang Rongjie3 School of Materials Science &Engineering, Beijing Institute of Technology National Engineering Research Center of Flame Retardant Materials,100081,Beijing Keywords: Organic, Wall Insulation Materials, Fire Prevention, Development Abstract: This article described the technical progress of the wall insulation organic materials and analyzed other relevant factors in recent years about the insulation materials policies changes and market changes.
The second type of wall insulation materials are composite materials, such as phenolic foam insulation materials, reaching flame retardant materials B1 level (fire).
They belong to the combustible materials (B2 fire).
A: incombustible materials.
B2: combustible construction materials.

However due to the complexity of interaction mechanism of electromagnetic field and composite materials, applying microwave ovens on an industrial level requires comprehensive experimental and numerical investigation to determine and predict the materials behavior during the curing process.
Eq.1 shows the amount of power (P [W/m³]) absorbed by materials interacted with electromagnetic field.
S., Journal of Composite Materials, 18(4)(1984) 387-409
S., International Journal of Material Forming, 1 (1) (2008) 1323-1326
K., Datta, S., & Basu, D., Bulletin of materials science, 31 (7) (2008) 943-956