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Tsai: Journal of Materials Processing Technology, Vol. 114 (1) (2001), p. 1-17 [5] N.
Tosun: Journal of Materials Processing Technology, Vol. 152 (2004), p. 316–322 [6] C.J.
Villa: Journal of Materials Processing Technology, Vol. 164–165 (2005), p. 889–896 [7] K.
Hassan: International Journal of Mechanical and Materials Engineering (IJMME), Vol. 3 (1) (2008), p. 25-29 [9] P.
Rao: International Journal of Refractory Metals & Hard Materials, Vol. 27 (2009), p. 892–899 [12] V.

Low or intermediate temperature electrolyte materials are requirements to achieve early commercialization.
Journal of Materials Science, 2012. 47 (9): p. 3925-3948
Materials Science and Engineering: B, 2007. 137(1-3): p. 24-30
Journal of Materials Science Letters, 2001
Journal of Materials Science, 2002

Estimation of the crack propagation direction of a crack touching the interface between two elastic materials Luboš Náhlík1, a, Lucie Šestáková1,2,b and Pavel Hutař1,c 1 Institute of Physics of Materials, Academy of Sciences of the Czech Republic, Žižkova 22, 616 62 Brno, Czech Republic 2 Institute of Solid Mechanics, Mechatronics and Biomechanics, Faculty of Mechanical Engineering, Brno University of Technology, Technická 2, 616 69 Brno, Czech Republic a nahlik@ipm.cz, bsestakova@ipm.cz, chutar@ipm.cz Keywords: crack propagation direction, bi-material interface, crack stability.
Crack approaching the interface between two materials.
Journal of Fracture 73 (1995), p. 1-23 [2] D.N.
Fenner: International Journal of Fracture 12 (1976), p. 705-721 [3] G.C.
Náhlík: PhD thesis Brno University of Technology and Institute of Physics of Materials AS CR, 2002

Introduction Nowadays, composite polymer materials, being multicomponent materials, consisting of polymer base (matrix) and various fillers, find wide application [1-3].
Foams belong tothe polymer composite materials, in which polymer matrix is filled with various hollow microspheres [4-6].
The composition formulations for producing samples of cellular materials with HCM and HASM are presented in Table 1.
Enikolopov, Principles of Creation of Composite Polymeric Materials, Khimiya, Moscow, 1990
Selivanov, Recycling of ceramic and polymeric wastes in the production of surfacing composite materials, Ecology and Industry of Russia. 23, №7 (2019) 36-41

Keywords: concrete, heat-resistant properties, aggregates, aluminum oxide (electrocorundum) materials.
Sciences, Saratov, 1997
Rossignol, Use of silicon carbide sludge to form porous alkali-activated materials for insulating application, European physical journal-special topics, 224(9) (2015) 1725-1735
Al-Hawas, Effects of key factors on compressive and tensile strengths of concrete exposed to elevated temperatures, Arabian journal for science and engineering, 39(6) (2014) 4507-4513
Sciences, Moscow, 1987.

Acoustic materials are used to absorb noise.
Therefore, these materials are quite important in controlling noise.
Potential of tin tailings an industrial waste for refractory materials, J.
[7] Shrikant R Lamani etc, Utilization of mine waste in the construction industry - A Critical Review, International Journal of Earth sciences and Engineering, vol 9, feb. 2016
[8] Tara Sen etc, Usage of Industrial Waste Products in Village Road Construction, International Journal of Environmental Science and Development, Vol. 1, No. 2, June 2010 [2] W.

Materials have also been designed using a hard wear resistant material as the cellular phase and a more ductile material as the cell boundary phase.
Halloran: Materials Science and Engineering, A.
of Refractory Metals and Hard Materials.
J. of Refractory Metals and Hard Materials.
Hilmas: Journal of Materials Science.

Due to the low strength and difficulty of recycling some scholars made a new material by compose expanded graphite with other materials.
Jin, The removal of oil materials from water by a new type graphite material, China environmental science. 17(1997)188-190
Liu, et al, Adsorption and decoloration of acid dyes waste water with expanded graphite, Journal of Sichuan University (Natural Science Edition). 44(2007)399-402
Chen, et al, Preparation of expanded graphite-based carbon/carbon composite electrode and its degradation of phenol, Journal of Functional Materials. 43 (2012) 240 - 243
Lian, et al, Study on Adsorption of Nitrobenzene onto Expanded Graphite, Journal of Fujian Normal University (Natural Science Edition). 26(2010)50-52

Classification of ecological clothing materials There are various types of new ecological raw materials developed in recent years, and they can be divided into natural fiber material and regenerated fiber material, as is shown in Fig. 1.
According to the introduction in the magazine of Fiber Science in Japan, the circulation period of regeneration for starch which is the raw material of corn fiber is short, about 1 to 2 year (s).
Wool Textile Journal, 2009, (2): 61
New Clothing Materials [M].
Guangxi Textile Science & Technology, 2009,(2):13.

An Empirical Study on Interlanguage of Computer Science and Engineering Major Students in English Writing Li Jing School of Applied English,Beijing International studies University,China Lijing020202@126.com Keywords: interlanguage, English writing, computer science and engineering major, error analysis Abstract.
Subjects were randomly chosen from computer science and engineering major students in Beijing University of Technology and Renmin University of China.
The important steps in error analysis are as follows: language materials selection; mistakes identification; classification of errors; estimation of the mistake[3].
Verdugo: The nature and patterning of native and non-native intonation in the expression of certainty and uncertainty：Pragmatic effects, Journal of Pragmatic Vol. 21(2005),p121-145
Richards:Non-contrastive approach to error analysis, English Language Teaching Journal Vol. 25(1971),p204-219.