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Therefore, oxygen is not only an important material for the growth, breath and capacity of aerobic microbes, but also one of essential raw materials for steroid oxidation (hydroxylation).
Beijing: Science Press, 1998(in Chinese)
Journal of Chemical Industry and Engineering(China),1999,50(3):417-420
Chinese Journal of Chemistry,1999,6:23-27(in Chinese)
Journal of Tianjin Universit, 2004,37(11):941-944(in Chinese)

Conclusion MWFs are among the most commonly used process materials in the metal working industry.
Journal of Occupational and Environmental Hygiene. 2006.
Journal of Materials Processing Technology. vol. 109. pp 181-189
Journal of Cleaner Production. vol. 7. pp 341-330
In: MITECH ´09: international scientific conference "Material science and manufacturing technology": proceedings / ed.

Comparisons will be done between both materials regarding their global deformation and recrystallisation textures as well as their recrystallisation kinetics and grain sizes.
The material was rolled at 800°C with thickness reduction levels between 30 and 70%.
It is thus believed that this component arises only after higher rolling rates, just as it is observed in other FCC materials, like Copper where the recrystallisation textures are random for rolling level lower than 70% and characterised by a strong Cube for higher rolling levels [5].
The high misorientation of the nuclei from the matrix, added to their multiple and early twinning, explain why the recrystallisation textures are very poor in these materials.
Nutting: Metal Science Journal, MS28 (1967), pp.123-127 2 P.J.

Journal of Materials Processing Technology, Vol.
Materials Science and Engineering, Vol.391A (2005):, p. 296
Materials science and technology, Vol.17(2001), p. 1119-1129
Metallurgical and materials transactions A, Vol.34 (2003), p. 1565-1573
[10] Qi-hang Han, Yong-lin Kang,Xian-meng Zhao, etc.. l.International Journal of Minerals,Metallurgy and Materials, Vol.18 (2011), p. 407-412.

Materials and method Ru shots (99.95%) and Al shots (99.99%) were used for the preparation of RuAl 50% (at) alloy.
The material which is to be melted is placed into a water-cooled crucible surrounded by an alternating current coil.
The Ru-RuAl eutectic phase wets the grain boundary of RuAl which usually leads to a high ductility of the material.
References [1] Wright, P.K. and Evans, A.G. , Mechanisms governing the performance of thermal barrier coatings, Current Opinion in Solid State and Materials Science 4 (1999) 255-265
Designing oxidation-resistant coatings, Journal of the Minerals Metals and Materials Society 52 (2000) 28-35 [4] D.R.Clarke, The lateral growth strain accompanying the formation of thermally grown oxide, Acta Mat. 51 (2003) 1393-1407 [5] C.G.Levi, Emerging materials and processes for thermal barrier systems.

Introduction The use of composite materials in industry is constantly increasing and their replacement of metallic materials is expanding due to their long-term durability and favorable mechanical properties in various fields of construction (naval, aeronautical, automotive, etc.).
The use of composite materials has expanded to include the use of composite patches for the repair of fractured and damaged structures.
Elastic and thermal properties for different materials [26].
The repaired pipeline, constructed of various composite materials, is exposed to a humid environment for different immersion times.
Lianshuang, Revelation of Pipeline Accidents, China Building Materials Press, (2016) 5-15

Morphology and Structural Characteristic of Nanocrystalline Cellulose (NCC) Hydrolyzed from Filter Paper NURUZATULIFAH Asari @ Mansora*, SITI NORBAYA Kasab, ISMARUL NIZAM Ismailc, and AFIFAH HANIM Ahmad Termizid Advanced Materials Research centre (AMREC) SIRIM Berhad, Lot 34, Jalan Hi-Tech 2/3, Kulim Hi-Tech Park, 09000 Kulim, Kedah, Malaysia anuruzatul@sirim.my, bnorbaya@sirim.my, cismarul@sirim.my, dafifah@sirim.my Keywords: Nanocrystalline cellulose, hydrolysis, filter paper Abstract.
Due to these features, NCC is capable to be used as high-quality reinforcing agents in nanocomposites polymers and biodegradable materials [1, 2].
EXPERIMENTAL Materials.
Whatman No. 1 filter paper was used as a starting material for the NCCs extraction.
Argyropoulos, Production of cellulose nanocrystals using hydrobromic acid and click reactions on their surface, Journal of Material Science. 46 (2011) 7344

Effects of Si3N4 Additions on Creep Resistance of Al-Al2O3 Composites Haoning Shia, Yong Lib, Chuanjing Li, Haixia Qin and Jialin Sun School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China anjdexy@163.com, blirefractory@vip.sina.com(corresponding author) Keywords: Silicon nitride; Creep; Aluminum; Alumina Abstract.
The result indicates that the change of interior material has occurred, causing creep resistance of sample increased.
Grain boundary phase and microstructure of the material determines its creep properties [8-9].
Slip along the direction of crystal and particle diffusion along grain boundaries led likely to pure corundum materials poor creep resistance.
Journal of Synthetic Crystal, 2014, 43(9):2198-2204 [3] Huasheng Zhan, Junhong Chen, Wendong Xue,et al.

Introduction White mineral fillers are widely used in rubber, paint and other polymer materials.
Coating nanometer CaCO3 particles on the mineral particles,changing the surface properties of micron powder,the smooth cleavage surface becomes rough, its sharp edges will be passivated, the binding force between the filler and polymer materials will be effectively increased, the problem of composite local stress concentration will be solved,so the advantages of nanoparticles will be effectively used and high performance composite materials will be obtained while reducing the cost of production.
This may be because part of the Ca(OH)2 was coated on the mineral particle surface without reacting with CO2, or because of any other loss of material.
Note: This article is the  research results of Binzhou Vocational College Science and Technology Development Program ( No. 2013XYKT06)  and Binzhou Municipal Science and Technology Development Program ( No. 2013ZC0705)  References [1] G.S.
Journal of Materials Processing Technology. 170(2005)58-63

The investigation have proved that the tribological properties of the nanoparticle additives are better than the frequently used solid lubricant additives and hence have become promising new lubricant materials.
Materials and methods Ceramic nanopowders.
The second studied material - spinel, compared to the base oil, all the investigated concentrations reduces the coefficient of friction value for 9-11 %.
References [1] Da Jiao, Shaohua Zheng, Yingzi Wang, Ruifang Guan, Bingqiang Cao, The tribology properties of alumina/silica composite nanoparticles as lubricant additives., Applied Surface Science 257 (2011) 5720–5725 [2] A.
Series: Materials Science and Engineering 18 (2011) 062024, 5 p. http://iopscience.iop.org/1757-899X/18/6/062024.