Search results

This is expected due to the influence of carrier diffusion into the substrate, but to investigate if also any material properties are changing during the growth the samples were investigated by structural, optical and electrical techniques to obtain depth information on the material properties.
(b) carrier lifetime mapping on as grown material (c) carrier lifetime mapping on polished stripe.
The FWHM of the peak related to 4H-SiC is ~15 arcsec which indicates very small stress in the material.
Janzén: Materials Science Forum, 457- 460, ICSCRM 2003, 2004, p.193 [5] J.P.
Janzén: Journal of Applied Physics, v 94, (2003) p.2901

However, MEA materials are relatively expensive.
Materials and Methods Raw Materials.
Raw materials for co-gasification were rice husk and coal.
The ultimate and proximate analyses of raw materials are shown in Table 1.
Wright, Progress in carbon dioxide separation and capture, Journal of Environmental Sciences. 20 (2008) 14–27

In this industry like in other industrial fields, development of new refractory materials is thus one of the actual world challenges.
Materials The Cr-Ni-Al alloys were synthesized by melting metal pieces in a HF furnace, in a chilled copper crucible.
Chromium, nickel and aluminum raw materials are of commercial-purity (>99.9%).
Roques: Oxidation and protection of Niobium base alloys, Colloque C9, Supplement to the journal of physics III, Vol.3 (1993) [3] V.
Vilasi: High-temperature oxidation behavior of the intermetallic compound NbAl3: influence of two processing techniques on the niobium trialuminide oxidation mechanism, Oxidation of Metals, 54, 27-45 (2000) [4] K.P.Lillerud, P.Kofstad: Oxidation of Metals, 17, 127-182 (1982) [5] S.C.Tsai, A.M.Huntz, C.Dolin: Growth mecanism of Cr2O3 scales: oxygen and chromium diffusion, oxidation kinetics and effect of yttrium, Materials Science and Engineering, A212, 6-13 (1996) [6] Y.F.Gu, Y.Ro, H.Harada: The possibility of Cr-base alloys for high temperature applications, Materials Science Forum, vols. 475-479, 627-630 (2005) [7] Y.F.Gu, Y.Ro, H.Harada: Chromium and chromium-based alloys: problems and possibilities for high temperature service, JOM, 56 (9) 28-33 (2004) [8] C.L.Briant, K.S.Kumar, N.Rosenberg, H.Tomioka: The mechanical properties of high purity chromium, International journal of refractory metals and hard metals, 18, 9-11 (2000) [9] N.Dupin, I.Ansara

When grinding spiral bevel gear, gear materials, grinding fluid,etc,was determinate, and these factors could be thought of as a normal level.
Acknowledgements The authors gratefully acknowledge the support of the National Science Foundation of China (NSFC Grant No. 50975291), Hunan Provincial Natural Science Foundation of China(Grant No. 11JJ3055), and Key Project of Science Research by Hunan College(Grant No. 11A028).
Investigation of removal rate and grinding ratio of PCD material based on orthogonal experiment[J].
Computer-aided manufacturing of spiral bevel and hypoid gears by applying optimization techniques[J].Journal of Materials Processing Technology,2001,114:22-35
An experimental investigation of rotary diamond truing and dressing of vitreous bond wheels for ceramic grinding[J].International Journal of Machine Tools and Manufacture,2000,40 (12):1755-1774.

Zhao1,c 1School of materials science and engineering, Shenyang Aerospace University, Shenyang, 110136, China azhangli@sau.edu.cn, bwubaolin02@yahoo.com.cn, czhaoyuhua2006@gmail.com Keywords: Al matrix composites, Al-Ti intermetallics, sintering, diffusion reaction, microstructural evolution, mechanical properties Abstract.
The pure Aluminium powders with an average size of 2±0.5μm were chosen as the starting matrix materials.
Kolagar-Daroonkolaie: Materials and Design Vol.30 (2009), p.280-286 [2] Ferkel H, Mordike BL: Mater Sci Eng A298(2001), p.193-199 [3] Xiaoming Wang, Animesh Jha, Rik Brydson: Materials Science and Engineering A364 (2004) p.339-345 [4] C.J.
Composites Science and Technology Vol.64 (2004), p.145-146 [8] V.
Journal of Alloys and Compounds Vol.473 (2009), p.127-132 [9] V.

Study on the double-fined treatment and superplasticity of GCr15 die steels Xinghai Liu1, a, Fengjuan Wu2,b , Huibin Wu2,c , Jiquan Sun2,d , Xueping Ren1,e 1School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China 2National Engineering Research Center of Advanced Rolling Technology, University of Science and Technology Beijing, Beijing 100083, China asolso@VIP.sina.com, bxiaowufj@163.com, cwuhb@ustb.edu.cn, dsunjq@ustb.edu.cn Keywords: GCr15 die steel; double-fined treatment ; superplasticity Abstract: Heat treatment has a signifieant impact on the performance of the GCr15 die steel.
Superplastic deformation in a certain strain rate, usually between 10-1~10-3/s.[9-12] Materials and experimental methods The chemical compositions of GCr15 steels are listed in Table 1.
Material&Heat Treatment,2008,75:37 [4] Li G B, Li X Z.
Journal of Materials Proeessing Teehnology,1998,74:23-30 [5] Horita Z, Langdon T G.
Elevated temperature behavior of SePD materials: Superplasticity or enhanced ductility[J].

This is achieved with precision control of the deposition time of the InAs active material.
Pashchenko performed measurements and processing of experimental results with the support of the Russian Science Foundation grant №19-79-10024.
Lunina, Inorganic Materials, 50 (2014) 113-119
Thomas, Ieee Journal оf Quantum Electronics, 46 (2010) 1051–1057
Series: Materials Science and Engineering, 680 (2019) 012022

Construction and Building Materials 25(2011) 2458-2464
Materials J., 2005, 102(6), p438
Wang: Hybrid Effect of Steel-Polypropylene Fiber on Fracture Property of High Strength Concrete, New Building Materials,2009,(2), pp24-27.
Wang: Mechanical Properties and Impermeability of Hybrid Fiber Reinforced Concrete, J. of Building Materials, 2008, 11(1), pp89-93.
New Building Materials, 2007(3), pp80-83.

The impact strenght increase with increasing the p-SBPEPB content before it is not over 8 wt%, when p-SBPEPB content is 8 wt%, the impact strength of materials achieves 0.449 kJ/m2 , which increases nearly one time than that of 0wt% sample (0.227 kJ/m2).
After added the p-SBPEPB, the fracture surfaces of specimens is not so clear- even, and has many holes as (b), (c) and (d), which is the fracture character of tough materials.
So the toughness of materials was improved though the addition small amounts of the LC epoxy resin, and mechanical and thermal properties were enhanced.
The co-curing of liquid crystalline epoxy resin with BPAER can increase the Tg and the impact strength of usually epoxy materials.
Chai: Journal of Applied Polymer Science.

The materials employed in the concrete mix are detailed in Table 1.
Macronita® fibers are synthetic fibers cut from polymeric materials.
Rai, A review of fiber synergy in hybrid fiber reinforced concrete, Journal of Applied Engineering Sciences, 8 (2018) 41-50
Mei, Tensile behavior of steel-polypropylene hybrid fiber-reinforced concrete, ACI Materials Journal, 113 (2016) 219-229
Construction and Building Materials, 262 (2020) 120561