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Tański 1, b 1 Silesian University of Technology, Division of Materials Processing Technology and Computer Techniques in Materials Science, Institute of Engineering Materials and Biomaterials, Konarskiego St. 18a, 44-100 Gliwice, Poland a leszek.dobrzanski@polsl.pl, btomasz.tanski@polsl.pl Keywords: magnesium alloys, heat treatment, structure, mechanical properties Abstract.
Schumann, Research for a "New age of magnesium in the automotive.industry", Journal of Materials Processing Technology, Vol. 117 (2001), 276-281
Čížek: Influence of heat treatment on structure and properties of the cast magnesium alloys, Journal of Advanced Materials Research, Vol. 15-17 (2007), 491-496
Gutman, Microstructures and dislocations in the stressed AZ91D magnesium alloys, Materials Science and Engineering, Vol.
Cibis, Microstructure of AM50 die casting magnesium alloy, Journal of Achievements in Materials and Manufacturing Engineering, Vol. 18 (2006), 135-138.

Materials Science in Semiconductor Processing. 42 (2016) 2-14
Journal of Hazardous Materials. 190 (2011) 222–228
Materials Science in Semiconductor Processing. 30 (2015) 321–329
Materials Science and Engineering: C. 91 (2018) 303-310
Materials Science Forum. 855 (2016) 20-32.

Properties Analysis of Biodegradable Material P(3HB-co-4HB) ZHANG Jing1,a, LU Xiuping2,b, CHU Tingliang1,c 1R&D Center, China Academy of Printing Technology, China 2Tianjin University of Science & Technology, China azhangjing@keyin.cn, blxp4217@126.com, cchu@keyin.cn Keywords: Biodegradable material; Poly(3-hydroxybutyrate-co-4-hydroxybutyrate); Basic proper- ties; Degradation properties Abstract.
Materials and methods Materials.
Combination the quality changes in soil degradation, the roughness of materials have a greater impact on the degradation of material.
The roughness of the material surface is conducive to increase the contact area of media and materials, and accelerate its degradation, and roughness of the degrading material will further increase, resulting in holes where the original holes increases further, forming a positive feedback process[6].
Forum Vol. 15 (2007), p. 259-267 [2] Ching-Yee Loo, Kumar Sudesh: Malaysian Polymer Journal (MPJ).

Huainan: Anhui University of Science and Technology
China Railway Science, 24 (2) :132-136. (2003).
Journal of Chang’an University(Natural Science Edition), 22 (5) : 48-50. (2001).
Journal of Guangxi University(Natural Science Edition), 35 (01) : 35-38. (2010).
Journal of Liaoning Technical University (Natural Science), 28 (03) :337-340. (2009).

Walisongo 3-5 Semarang, 50185, Indonesia 3Research Unit for Clean Technology Indonesian Institute of Sciences, Jl.
Fibers are materials with advantageous properties such as lightweight material properties, has small pore size, and has high surface area, porosity,and permeability.
[5] Xianfeng W., Bin D., Gang S., Moran W., Janyoung Y, (2013): Electrospinning/netting: A Strategy for the fabrication of three dimentional polymer nanofiber/nets, Progress in Materials Science, 58, 1173-1243
[8] Gupta S., Webster T.J, (2011) : Evolution of PVA Gels Preapared without Crosslinking Agent as a cell Adhesive Surface, Journal of Material Science : Materials in Medicine, 22, 1763-1772
[12] Doshi J., Reneker D.H., (1995): Electrospinning Process and Applications of electrospun Fibers, Journal of Electronis, 35, 151-160

Song: Chemicals and Materials from Coal in the 21st Century.
Journal of Wuhan University of Science and Technology, Vol. 32 (2009), p. 638~643 [5] X.H.
Journal of Coal Science & Engineering, Vol. 14 (2008), p. 672~674 [6] X.H.
Journal of Xi’an University of Science and Technology, Vol. 27 (2007), p. 594~602 [8] L.M.
Journal of Hunan University of Science & Technology (Natural Science Edition), Vol. 21 (2006), p. 77~81 [9] Z.H.

The phenomenon, found by Mohri in 1992, belongs to the Quantum Theory, it can be observed in film layers structured with magnetic and non-magnetic materials.
Giant Magneto impedance Effect: Concept and Prediction in Amorphous Materials [J].
CHINESE JOURNAL OF SENSORS AND ACTUATORS, Vol.24, 2011(2), pp: 175-179.
Frequency dependence of magnetization and giant magneto impedance effect of amorphous wires [J], International Journal of Minerals, Metallurgy, and Materials, Vol.20, 2013(4), pp: 375-378
Journal of Nanjing University of Science and Technology, 2011(3), pp: 338-342.

Therefore, the understanding of reloading stress relaxation behavior of structural materials is required for safety designing and maintenance of steam-powered plants[1,2].
Material parameters γ, δ can be identified by fitting the experimental residual stress curves while other material parameters are available.
Humphries el.: Materials Science and Engineering A Vol. 527 (2010), p.3240 [2] A.F.
HASHEM: Advanced Performance Materials Vol. 6(1999), p.129 [3] T.
Sasaki: Journal of The Society of Materials Science Vol. 18(1969), p. 976 [4] Chiaki Tanaka, Toshio Ohba: Journal of The Society of Materials Science Vol. 29(1980), p. 26 [5] Jinquan Guo: Research on the Analysis and Prediction Methodology of High Temperature Stress Relaxation(Dissertation, East China University of Science and Technology, China, 2010) [6] H.

Shaanxi university of science & technology, Xi’an Shaanxi, 710021,China E-mail:xqwangjian@163.com, yulifang1001022@163.com, 182407275@qq.com） Keywords: modified fiber, properties of hand sheet, NBKP, HYP, sawdust Abstracts: Different fiber materials were modified and the effects of modified fiber on paper performance were evaluated.
Materials and Methods Materials: NBKP, poplar PRC-APMP, filings, OCC; Chemicals: NaOH(AR), absolute ethyl alcohol(AR), chloroactic acid(AR) Fiber Modification.
Comprehensive figure 1, figure 2 and figure 3, it was obtained that paper strength was improved with the use of the modified fiber, and the improvement effect was related to the kind of the raw materials.
Journal of Cellulose Science and Technology, 2006(1):60-65(In Chinese) [3]Yu-dian Lei,Yun Fang, Advance in the Manufacturing Process of Carboxymethylcellulose(CMC), China Surfactant Detergent & Cosmetics. 2000(4):25-29 (In Chinese) [4]Bing Hu, Hua-yun Long.
Journal of Huaiyin Teachers College(National Science Edition). 2004(3):236-238(In Chinese) [6]Mei-juan Feng, Preparation of Carboxymethylcellulose(CMC) with Plant Straw, Guangxi Chemical Industry. 1999(3):12-14(In Chinese) [7] Production of Carboxymethyl Cellulose Technology with Straw and Wheatstraw, Technology Wind, 2003(17):27(In Chinese)

Table 1 Materials of the sandwich composites.
Sadighi: Materials Science & Engineering A. (2010), doi: 10.1016 /j.msea. 2011.03.009
[18] Hamidreza Zarei, Matthias Kroger: Materials and Design.
Sadeghi: Materials and Design.
Guden: Materials and Design.