Search results

We use highly doped n-type 4H-SiC wafers with a 10 µm thick n- epitaxial layer at the silicon face (Si-face) as starting material.
In situ doped n+ polycrystalline silicon serves as the gate electrode material.
Schroder, Semiconductor Material and Device Characterization, Wiley Interscience, 2006
Nakano, 690V, 1.00 mΩcm² 4H-SiC Double-Trench MOSFETs, Materials Science Forum 717-720 (2012) 1069
Raynaud, Silica Films on Silicon Carbide: A Review of Electrical Properties and Device Applications, Journal of Non-Crystalline Solids 280 (2001) 1.

Preparation and Characterization of Fluorinated Epoxy Resin Emulsion for Waterborne Coatings Wenlu Guo1,a, Hongchun Zhou1,b, Hanqing Lu1,c and Wei Hu1,d 1School of Biology and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang, Jiangsu, 212003, China aguowl1954@163.com, balexzhou1987@126.com, clhq-0525@163.com, dstena.1986@163.com Keywords: HFMA, epoxy emulsion, contact angle, environmental protection Abstract.
Introduction With excellent adhesion, thermal stability, chemical resistance, insulation resistance and mechanical strength, epoxy resin is widely used in coatings, adhesives and composite materials and other fields [1-3].
Experimental Materials.
After the reaction cooled it to 50℃, remove the solvent in vacuum, adding the mixed solution of N, N-dimethyl ethanolamine and deionized water to neutralize, stir it to react for 30min to pH≈7-8, and then add water, after high-speed dispersion 1h, filter out material, a certain solid content of the epoxy emulsion can be made.
Vol. 29(2008), p. 14 (In Chinese) [8] QIN Zong-gen, TU Wei-ping, XIA Zheng-bin: Journal of Chemical Engineering of Chinese Universities.

The material selected to build the clamp device is steel alloy AISI 4340.
Israel Annual Conference on Aerospace Sciences, 2008.
[5] FAA – Federal Aviation Administration, MMPDS-07 - Metallic Materials Properties Development and Standardization (MMPDS), 2012
Journal of Applied Mechanics, v. 35, p. 379–388, june 1968
ASTM - American society for Testing and Materials, STP 486, p. 79–97, 1971.

Defect Structure in (Zn,Mg)O Films Prepared on YSZ Substrate Haruki Ryoken 1,2, Isao Sakaguchi1, Naoki Ohashi1, Yutaka Adachi1, Takeshi Ohgaki1, Shunichi Hishita 1 and Hajime Haneda 1,2 1 National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki, 305-0044, Japan 2Kyushu University, 6-1 Kasuga-kouen, Kasuga, Fukuoka, 816-8580, Japan Keywords: zinc oxide, pulsed laser deposition (PLD), secondary ion mass spectroscopy (SIMS), solid solubility limit ABSTRACT The defect structure of undoped ZnO and (Zn1-x,Mgx)O solid-solution films were deposited on YSZ substrate with pulsed laser deposition (PLD) to investigate defect equilibria in those films.
RESULTS AND DISCUSSION Compositional analyses with SIMS[4] revealed that MgO concentration (x) in the deposited (Zn1-x,Mgx)O films were about three times higher than that in the target material.
This is the case for ZnO and (Zn,Mg)O films, because ZnO is a typical volatile material due to high vapor pressure of zinc.
Ohtomo et al., Nature Materials 4 (2005) 42-46 [2] H.
Sakaguchi et al., Journal of Electroceramics 4 Suppl. (1999) 41-48 [9] D.

Protective Effects of Gynostemma pentaphyllum Makino Polysaccharide on Alcoholic Hepatic Injuries Shuliang Song1, a, Zengping Xiao1,b, Hao Liang1,c, Yunshan Wang1,d and Aiguo Ji1,2,e * 1Weihai International Biotechnology R&D Center, Shandong University, WeiHai 262409, PR China 2School of Pharmaceutical sciences, Shandong University, JiNan 250012, PR China a13721935592@126.com, bxiaozengping@126.com, clianghao@sdu.edu.cn, dwangyunshan135@yahoo.com.cn, ejiaiguo@sdu.edu.cn Keywords: Gynostemma pentaphyllum Makino; polysaccharide; purification; alcoholic hepatic injury Abstract.
Materials and methods 3.1.
Materials and reagents G. pentaphyllum Makino was purchased from Ankang Chinese medicine factory (Ankang, Shanxi Province, China).
Journal of Chinese Medicinal Materials. 31 (2008), P.454-456

One unique advantage of laminated composite material is the finite deformation or even large deformation character.
For instance, fishing rods and golf shafts are mostly (or almost) made by laminated composite material.
In other words, even in large deformation, the material still remains as an elastic material.
To find the critical load of circular curved beams, we assume the deflection of the bar is very large, but materials still remain elasticity.
Lin, Finite Deformation of 2-D Thin circular curved beams, Hsiuping Journal 19 (2009), 203-216.

For protein, metal ion and many biological materials and engineering materials, it is a rather bad solvent.
Daniel Bratton [22] utilized PPG-PEG-PEG hydrocarbon active agent to synthesize polyglycolic acid (PGA) which was a synthetic macromolecule materials with favorable biodegradability and biocompatibility.
Acknowledgements The authors acknowledge the funding provided by the Natural Science foundation of China (Project 21176032).
[8] Consan K A, Smith R D: The journal of supercritical fluids, 1990, 3( 2):51 -65

Literauter [3] study the rubber blended with natural rubber and hydrogenated nitrile rubber.The reason for the change of its physical and chemical properties is revealed by using tools such as scanning electron microscopy. [4] study the role of nano-materials in modification of nitrile rubber.
Acknowledgement It is a project supported by National Natural Science Foundation of China (50875178).
Macromolecular materials and Engineering, 2004, 1289(12):1079-1086
Journal of Building Materials, 2005, 8(4): 383-386

R&D Center in Korea Univ. 635, Bio-technology B/D, 5ga, Anam-dong, Sungbuk-gu, Seoul 136-701, Korea 2 Department of Mechanical Education, Andong National University 388, Songchun-dong, Andong, Kyoungbuk 760-749, Korea 3 Department of Sports Engineering, Korea Institute of Sport Science 223-19, Kongnueng-dong, Nowon-gu, Seoul 139-272, Korea 4 Lab. of Control and Measurement, Mechanical Eng., Soongsil University 1-1, Sangdo 5 dong, Dongjak-gu, Seoul 156-743, Korea awoong25@korea.ac.kr, b djoh@andong.ac.kr, ckwkang68@sports.re.kr, dyoung@bmvitek.com Keywords: Pseudo Crack Model, Cracking and Un-cracking Delamination, Fiber Reinforced Metal Laminates (FRMLs), Crack Consumption Rate (Ccrack), Delamination Consumption Rate (Cdel) Abstract.
Mai: Progressive Damage and Residual Strength of a Carbon Fiber Reinforced Metal Laminates (Journal of Composite Materials, USA 1997), Vol. 31, No. 8, pp. 762~787
Kim: Fatigue Crack Growth Behaviors in Al-Si-Mg Sand Cast Alloys (Metals and Materials International, Korea 2004), Vol. 10, No. 1, pp. 13~18
Marrisen: Fatigue Crack Growth in ARALL-A Hybrid Aluminum Aramid Composite Material (Ph.
Kim: Fatigue Crack and Delamination Behavior in the Composite Material Containing a Saw-cut and Circular Hole (I) -Aramid Fiber Reinforced Metal Laminates- (Transaction of the KSME, A, Korea 2003), Vol. 27, No. 1, pp. 58~65.

Materials and methods Materials: [CH3(CH2)3O]4Ti, DMAc, Fe(NO3)3·9H2O, 30% H2O2, Orange IV, t-butanol, EDTA and other chemicals were of analytical grade and used without further purification.
Acknowledgments This work was supported by the National Natural Science Foundation of China (No. 50978067), National Key Technology Support Program (2006BAJ08B05), the 11th Five-year specific events of water (2008ZX07421-002, 2009ZX07424-005, 2009ZX07424-006) and the Doctor Research Fund of Northeast Dianli University (No.
Hu: Chemical Propellants & Polymeric Materials Vol. 7(3) (2009), p. 6 “In Chinese” [2] X.H.
Hidaka: Journal of Molecular Catalysis A: Chemical Vol. 129(2-3) (1998), p. 257