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Li 2 1 School of Materials Science and Engineering, Central South University, Changsha 410083, China; 2 Zheng Zhou Research Institute of CHALCO, Zhengzhou, 450041, China a magnesiumysj@163.com.cn; bcsuyangsh@yahoo.com.cn Keywords: AZ91 alloy, Scandium, Microstructure, corrosion property Abstract: The microstructures and corrosion properties of AZ91 magnesium alloy with trace additions of Sc were investigated.
Experimental procedure The materials used were 99.7%Mg, 99.99% Al, 99.9% Zn and Mg-Sc master alloy (2.03Sc wt%).
References [1] H.Friednich, S.Schumann: Journal of Materials Processing Technology. 117(2001),p.276 [2] Hongwei Huo, Ying Li, Fuhui Wang: Corrosion Science 46(2004),p.1477 [3] F.H.Froes, C.M.Ward Close: Journal of Materials Processing Technology. 48(1995),p667 [4] Yeshuang Wang, Qudong Wang and Chunjiang Ma: Materials Science and Engneering.
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Journal of Materials Research. 29 (2014) 942-949
Materials Science and Engineering C. 49 (2015) 93-94
Materials Science and Engineering. 302 (2001) 37-45
Materials Science and Engineering A. 634 (2015) 5-13
Chinese Journal of Functional Materials. 45 (2014) 5001-5007

Two fundamentally different loops within a circular system have distinguished: the reuse of products and materials (upcycling) and recycling materials (downcycling).
The circular economy introduces the possibility of reusing raw materials from discarded products, thus increasing the materials' life cycle.
This project, which is called Cork-a-Tex (yarn manufacture with cork waste from domestic consumption), and is the winner of the Techtextil Innovation Award 2019 in the New Materials category.
CIRP Journal of Manufacturing Science and Technology Remanufacturing with upgrade PSS for new sustainable business models.
CIRP Journal of Manufacturing Science and Technology. (2018) https://doi.org/10.1016/j.cirpj.2018.10.005 [10] Simons, Helen.

The best materials must be breathable, strong concealing plastic faced material is not suitable.
According to different space function, wall furnishing needs various materials.
In the material selecting and bounding, it’s important that materials are non-toxic, fire-proof and antitoxin after fire.
The proper way is using unsmooth anti-slippery materials.
Journal of Science & Technology Association Forum, Vol.4(2009) , p. 126, in Chinese.

Plurality of materials used for the SLM production is limited, but growing [1].
There are commonly used materials like steels, titanium and aluminium alloys, copper alloys but also precious metals like gold and platinum [2].
Attallah, Selective laser melting of AlSi10Mg alloy: Process optimisation and mechanical properties development, Materials & Design 65 (2015) 417-424
Ueda, Permeability and strength of a porous metal structure fabricated by additive manufacturing, Journal of Materials Processing Technology 219 (2015) 10–16
Dalgarno, A review on selective laser sintering/melting (SLS/SLM) of aluminium alloy powders: Processing, microstructure, and properties, Progress in Materials Science 74 (2015) 401–477.

DIELECTRIC PROPERTIES OF ZrO2 DOPED ON NiO AT HIGH FREQUENCY Sharifah Aishah Syed Salim1, a, Julie Juliewatty Mohamed2, b, Zainal Arifin Ahmad3, c 1,2,3 School of Materials and Mineral Resources Engineering, Engineering Campus, Universiti Sains Malaysia, 14300 Nibong Tebal, Penang, Malaysia.
Therefore point defects in NiO crystals considered as an ideal solution for doping with other materials.
Figure 1(c) illustrates the effect of ZrO2 as a dopant material on lattice distortion of NiO.
ACKNOWLEDGMENTS The authors would like to acknowledge the materials and mineral resources engineering, USM and short term grant under project number (No. 814184) REFERENCES [1] J.
Hassan, “Synthesis and characterization of pure and ZrO2-doped nanocrystalline CuO–NiO system,” Journal Applied Surface Science. vol. 254, pp.1651–1660, July 2007

Experimental 2.1 Materials Diammonium hydrogen phosphate (DAP) and urea were supplied by Sinopharm Chemical Reagent Co.
Progress in Polymer Science, Vol. 27, (2002), p.1661. 4 K.
Journal of Applied Polymer Science, Vol.118, (2010),p.834. 9 C.
Journal of American Chemical Society, Vol. 91,(1969),p. 62. 11 K.
Journal of Agriculture and Food Chemistry, Vol. 24,(1976), p.412. 12 D.

Acknowledgements The research work was full supported by National Natural Science Foundation of China (NO.11372209) and the Nature Science Foundation of Shanxi Province of China (NO.2010011005).
Strength of Materials, (2013). 45(6): p. 666-673
Journal of Mechanical Science and Technology, (2013). 27(2): p. 327-336
Journal of Mechanical Science and Technology, (2014). 28(7): p. 2769-2777
-h. kang, exact solutions for vibration and buckling of an ss-c-ss-c rectangular plate loaded by linearly varying in-plane stresses. international journal of mechanical sciences, (2002). 44: p. 1925–1945

Owing to this, many established studies have proposed numerous alternatives to stabilize and strengthen peat which includes the use of waste materials.
Materials Peat Peat samples used in this study were taken from Kampung Meranek-Lansat, Kota Samarahan which is approximately 8 km away from UNIMAS.
Journal of Applied Sciences 15(7) (2015) 1006–1012
International Journal of the Physical Sciences 6(8) (2011) 1988–1996
Applied Mechanics and Materials 773 (2015) 1417–1421

Materials and methods General situation of the research district.
Wetland Science. 7:135-141(2009) (in Chinese)
Lake Science. 19: 698~704 (2007) (in Chinese)
Journal of Natural Science of Hunan Normal University. 34:82-87(2011) (In Chinese)
Journal of Natural Science of Peking University. 39: 501~506 (2003) (in Chinese)