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Zhu1,f,* 1Key Laboratory of Automobile Materials, Ministry of Education, and Department of Materials Science and Engineering, Jilin University, No. 5988 Renmin Street, Changchun 130022, P.R.
In order to further reduce the weight of structural materials, some kinds of lightweight metal (such as Al, Mg and Ti) are utilized [3].
As the lightest metal, magnesium alloy is very suitable for making porous materials [4].
Yang , et al., “Research process on property and application of metal porous materials,” J.
Codd，et al., “Structural ceramic coatings in composite microtruss cellular materials,” Acta Mater. vol.59, pp. 6145-6154, 2011

Experimental Materials.
All composite materials exhibit the similar trend.
This skin is harder than the inside material.
Cheng, Wear behavior of UHMWPE sliding on artificial hip arthroplasty materials, Materials Chemistry and Physics, Volume 88, Issue 1, 15 November 2004, Pages 9-16 [4] Steven M.
Arnell, Luquan Ren, Free abrasive wear behavior of UHMWPE composites filled with wollastonite fibers, Composites Part A: Applied Science and Manufacturing, Volume 37, Issue 1, January 2006, Pages 38-45

Materials and test procedure Plane specimens with external unilateral stress concentrators were tested, and then the crack growth was considered in the structural aspect of the material.
In the tested material, short (secondary) cracks developing from the main crack also appeared.
During the tests, a similar behaviour of the material was observed after heat treatment, increase of life in all the tested specimens.
Hepner, Influence of oxygenation time on crack growth in titanium alloy under cyclic bending, Materials Science 47 (2011) 89-94
Journal of Fatigue 39 (2012) 25-31

Reversible Poly Lactic Acid (PLA) Film for Volatile Organic Compounds (VOCs) Gas Sensor Siti Amirah Alias1,a and Ku Marsilla Ku Ishak2,b* 1,2School of Materials and Mineral Resources Engineering, Engineering Campus, Universiti Sains Malaysia, Seri Ampangan, 14300 Nibong Tebal, Pulau Pinang, Malaysia asiti_amirah@student.usm.my, bku_marsilla@usm.my Keywords: Poly lactic acid, Reversible sensor, halochromic, gas sensor Abstract.
This restricts the dye entrapment inside the material, making it difficult to fabricate a halochromic PLA film.
Methodology Materials and Sample Preparation.
Correa, Hybrid nanomaterials designed for volatile organic compounds sensors: A review, Materials & Design 156 (2018) 154-166
Ku Marsilla, Halochromic poly (lactic acid) film for acid base sensor, Journal of Applied Polymer Science 138(13) (2021) 50093.

[2] Y Mastai, S Polarz, M Antonietti, Silica-carbon nanocomposites-a new concept for the design of solar absorbers, Advanced Functional Materials, 12 (2002): 197-202
[4] S Zhao, E Wäckelgård, The optical properties of sputtered composite of Al-AlN, Solar energy materials and solar cells, 90 (2006): 1861-1874
[7] C E Kennedy, Review of mid-to high-temperature solar selective absorber materials, Golden Colorado: National Renewable Energy Laboratory, 2002
[11] R L Zong, J Zhou, B Li, et al, Optical properties of transparent copper nanorod and nanowire arrays embedded in anodic alumina oxide, The Journal of chemical physics, 123 (2005): 094710
[14] Air Mass 1.5 Spectra, American Society for Testing and Materials, http://rredc.nrel.gov/solar/spectra/am1.5/ [15] Kirchhoff’s laws, http://en.wikipedia.org/wiki/Kirchhoff's_laws [16] Handbook of Optical Constants of Solids: Index, Access Online via Elsevier, 1998

ITO Nanofibers Prepared from Electrospun ITH/PVA Precursors Yi-Jun Pan 1a, Ting-Ting He 2b, Qu-Fu Wei 2c, Wei-Sheng Chuang 3d, Hao-Hsin Ni1e, Yu-Zan Chen3f 1 Department of Materials and Textiles, Oriental Institute of Technology, Taipei, Taiwan 2Key Laboratory of Eco-Textile of Education, Jiangnan University, Wuxi, China 3 Graduate Institute of Materials Science and Nanotechnology, Chinese Culture University, Taipei, Taiwan afc003@mail.oit.edu.tw, bsunshine_tingting@163.com, cqfwei@jiangnan.edu.cn, dmm21617@hotmail.com, e100016102@mail.oit.edu.tw, fyuzanchen@hotmail.com Keywords: Electrospinning; PVA, Indium-Tin Oxide, Co-precipitation Abstract.
Experimental Materials.
Materials Letters.
Chu, Advanced Materials Research Vols. 287-290 (2011), p 2626-2629 [7] C.
Chinese Journal of Inorganic Chemistry.

One of the possible strategies to face this issue is represented by the use of biodegradable polymers as packaging materials.
Experimental Materials.
All the materials comply with USA FDA and EU regulations for food contact.
Fig. 4 Elastic modulus of the PBAT/PLA based films Furthermore, all the blends have an elastic modulus between those of the pure materials.
Carrot, Effect of the viscosity ratio on the morphology and properties of PET/HDPE blends with and without compatibilization, Journal of Applied Polymer Science 117 (2010) 1683–1694

First, it can save tobacco materials as many as possible to reduce cigarette cost; second, tobacco sheets play an important role in reducing tar and minimizing the harm of cigarette.
By using reconstituted tobacco sheet in the cigarette industry, the raw tobacco materials can be utilized to their greatest extent.
Hence, waste materials can be changed into value materials.
Experimental Materials.
Chinese Journal of chemistry, 2010, 28(8): P.1312-1326 [14] Middleton S R, Scallan AM.

The impact of LPG storage tank steel specimen fracture analysis of welded joints Wei Gu1,a, Guoping Wang2,b and Xiaoping Wang1,c 1Department of Mechanical Engineering, Anhui technical college of mechanical and electrical engineering, Wuhu, Anhui, 241000,China 2School of Materials Science and Engineering, Hefei University of Technology, Hefei, Anhui, 230009,China ajxxgw@126.com, bjxxwxp@126.com, cwangguoping1217@163.com Keywords: LPG tank;09MnNiDR;Welded joints;Fracture;Morphology.
This article conducts the engineer testing research in view of the domestically produced low temperature storage tank manufacture with the steel 09MnNiDR coordination domestic product welding materials.
Test materials This laboratory uses the steel products for domestically produced LPG low temperature storage tank special-purpose steel 09MnNiDR.
The chemical composition of 09MnNiDR steel and welding materials is shown in Table 1.
Table 1 Chemical composition of 09MnNiDR steel and welding materials Name C Si P S Mn Ni 09MnNiDR Steel 0.08 0.30 0.007 0.003 1.40 0.49 W707Ni 0.07 0.21 0.011 0.003 0.79 2.37 Table 2 Mechanical properties of 09MnNiDR steel and welding materials Name σS /Mpa σb /MPa δ5 (% ) AKV (-70˚C)/J 09MnNiDR Steel 450 520 36 154 W707Ni 510 600 27.5 93 The 09MnNiDR steel is one kind of 0.5Niwt new aluminum which develops in the 16MnDR foundation.

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