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The higher the temperature, the more rules crystal materials.
Semiconductors as their unique band structure of materials can be used as photocatalytic materials.
Experiments show that materials of the microwave synthesis have excellent photocatalytic properties.
Qu, Preparation and visible-light activity of silver vanadate for the degradation of pollutant, Materials Research Bulletin, 43(2008) 2986-2997
Huang, In situ DRIFT and kinetic studies of photocatalytic degradation on benzene vapor with visible-light-driven silver vanadates, Journal of Hazardous Materials, 178(2010)644-651

In additive manufacturing, more commonly known as 3D printing, a data is used to build a part by depositing materials.
Khedkar, T.P.Singh, “Investigation Of The Effect Of Built Orientation on Mechanical Properties and Total Cost of FDM Parts”, Procedia Materials Science, vol. 6, pp. 1625 –1630, 2014
Ahn, “Measurement of Anisotropic Compressive Strength of Rapid Prototyping Parts”, Journal of Materials Processing Technology, vol. 187–188, pp. 627–630, 2007
Pregger, “Effect of Layer Orientation on Mechanical Properties of Rapid Prototyped Samples”, Materials and Manufacturing Processes, vol.15 no. 1, pp. 107-12, 2000
Wright, “Anisotropic material properties of fused deposition modeling ABS”, Rapid Prototyping Journal, vol. 8 no. 4, pp. 248 – 257, 2002

This simulation program was used to predict material flow in the die to reduce trial processes.
Effects of Forging and Heat Treatment on the Microstructure and Oxidation Behavior of 316LN Stainless Steel in High Temperature Water, Journal of Materials Science & Technology. 2015, 31, pp.403-412
[2] Sethapong Wangchaichune and Surasak Suranuntchai, Finite Element Simulation of Hot Forging Process for KVBM Gear, Applied Mechanics and Materials, 2018, 875, pp.24-29
Materials and Design, 2014, 57, pp.397-704
[5] Surasak Suranuntchai and Prarop Kritboonyarit, Production Improvement of an Agriculture Engine Part under Hot Closed Dies Forging Using Finite Volume Method, the Asian International Journal of Science and Technology in Production and Manufacturing Engineering, 2010, 3, No.2, pp. 23-28.

The Establish and Analysis of the Quenching residual stress’ Function of the Club-shaped Metal ZHENG Li-xuan1, a, ZHAO Wei2,b, ZHENG Yu-cai2,c 1College of Manufacturing Science and Engineering, Southwest University of Science and Technology, Mianyang, 621010, Sichuan China 2Chinese Academy of Engineering and Physics, Mianyang, 629000, Sichuan China a zhenglixuan0917@yahoo.com.cn, b zhao.wei2485636@163.com, c asaczyc@tom.com Key words: heat conduction equation，temperature，quenching residual stress Abstract.
In recent years, the study of residual stress which comprises its formation, testing and impact on fatigue strength of metallic materials, brittle fracture and stress corrosion attract more attention and get in-depth discussion with the development of fracture mechanics [1].
As a kind of common materials processing shape, Metal bars are widely used in industrial production [5].
If the temperature of the former and the latter has obvious differences, the excessive quenching rate leads to increase in thermal stress and residual stress of materials is the main reason of generating the phenomenon of inner crack.
-j., in: Numerical Simulation of the Quenching Process of GCr15 Steel Tube，submitted to Material treatment journal (2003) [5] ZHU Wei, CHEN Men-xiong, ZHANG Hui :Reducing Residual Stresses Process for Quenched 7075 Aluminium Alloy Thick-plates ，submitted to Material treatment journal (2002)

Introduction Mechanical equipment manufacturing industry has been an important material basis for national economic development.
Fig. 5 Sensor placement Fig. 6 Portable Dynamic Signal Analyzer Fig.7 The RMS value based on cutting trials Acknowledgements This work was financially supported by the Science and Technology Supporting Key Project of Tianjin (12ZCZDGX01600), and the Science Planning Project of Fujian, China (2012H1008).
[2] Teng Hu, Jian Fu, and Yulai Zheng: Journal of Xihua University, vol.30 (2011), p.28.
[3] Qiming Zheng, Gang Zhou, and Qinghai Lao: Journal of Shaanxi University of Science & Technology, vol.23 (2005 ) , p.109.
[7] Yongliang Chen, Peihua Gu: Chinese Journal of Mechanical Eengineering V01.21, No．3, (2008)p.7

Recovery leaching of Niobium from Metallurgical Residues Yanyang Daia，Hui Zhong, Haiyun Zhong School of Metallurgical Science and Engineering, Central South University, Hunan, Changsha, 410083, China adyy90404@gmail.com Keywords: tungsten residue; recovery; niobium Abstract.
Low grade materials bearing niobium include smelting slag (tungsten residue, tin slag, high-titanium slag, et.), spent catalysts, spend hard-alloy, tantalum capacitor scrap, tailing and other scrap [2-6].
Experemental Experimental materials and process.
The materials used in this study were tungsten residue A and waste residue B taken from a tungsten smelter in China.
:Journal of refract metal and Hard Materials(In Chinese), 1991 (93),143～146 [7] Yanyang Dai, Hui Zhong, Haiyun Zhong : Nonferrous metals(In Chinese). 2009(3):87-89

Zero-valent iron (Fe0) as one kind of redox material has received increasing attention due to its low cost, simplicity and reliability[7].
Experimental set-up Materials.
Engelken: Environmental Science & Policy.
Meera Sheriffa: Journal of Hazardous Materials.
Charerntanyarak: Water Science and Technology.

The conventional materials for fabricating bipolar plate are based on either graphite materials or metals.
Aggarwal, Effect Of Different Carbon Fillers On The Properties Of Graphite Composite Bipolar Plate, Journal Of Materials Processing Technology,203,2008
Science (287), pages 637–40
The mechanical properties of nanostructured materials.
A Review of Thermoplastic Composites for Bipolar Plate Materials in PEM Fuel Cells

GGBS is a kind of silicate materials from the view of their chemical component[4].
Compared with the cement sample, the content of slag cementing materials is less than that of cement, and the strength of 9% dosage of alkali slag material solidified soil is higher than 15% dosage of cement stabilized soil.
Present Situation of the Slag's Synthetic Utilization in our Country [J]: Research& Application of Building Materials,2009, 2: 6~8
Sustainable soil stabilization with blast furnace slag -a review [J]: Proceedings of the Institution of Civil Engineers: Construction Materials. 2010, 163(3): 157~165
Journal of Shandong University of Science and Technology, 2008, 27(5):47~51.

Materials and methods of experiment 2.1 Materials and reagents Materials was the waste cooking oil of Beijing Technology and Business University Eastern student cafeteria, which was a dark brown oily liquid after mixing and filtering solids.
The Current Situation and Development of Preparing Biodiesel Fuel with Restaurant Waste Oil, Journal of Dongguan University of Technology, Vol. 17(2010) , p.92-96
Biodiesel made by transesterification of the optimization study, Science &Technology Information, Vol.24 (2009),p. 455-457
Transesterification of Waste Cooking Oil to Biodiesel, Journal of Agricultural Mechanization Research, Vol. 4 (2010) , p.189-191
Research on the Optimal Reaction Condition for the Biodiesel from Waste Oil of Restaurant, Journal of Liaoning University(Natural Sciences Edition) , Vol.35(2008), p. 147-149