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Online since: January 2013
Authors: Hilda Kundai Chikwanda, Silethelwe Chikosha
TiPt HTSMA produced by spark plasma sintering of elemental powders Silethelwe Chikosha1,a , and Hilda Kundai Chikwanda1,b 1CSIR, Materials Science and Manufacturing, P O Box 395, Pretoria, 0001, South Africa aschikosha@csir.co.za, bhchikwanda@csir.co.za Keywords: TiPt, SPS, sintering, interdiffusion, martensite Abstract.
Shape memory alloys, are materials that will revert to the shape they had before deformation if the deformed alloy is annealed at a certain temperature.
Cornish, Martensitic transformations, microstructure and mechanical workability of TiPt, Metallurgical and Materials Transactions A, 32A (2001),1881-1886
Hara, Crystallography and morphology of twins in equiatomic TiPt martensite, Material Science and Technology, 24 8 (2008), 884-889
Hosoda, Mechanical properties of Ti-50(Pt,Ir) high temperature shape memory alloys, Materials Transcations, 4 (2006), 650-657
Online since: May 2016
Authors: Ayu Wazira Azhari, Dewi Suriyani Che Halin
As a function of chlorophyll in the energy collector, Noni leaves were used as an organic material in solar cell in order to increase the energy conversion efficiency.
The reason is to remove any unwanted materials left from the leaf.
Acknowledgement The authors gratefully acknowledge the financial support by Center of Excellence Geopolymer & Green Technology (CEGeoGTech), School of Materials Engineering and the Universiti Malaysia Perlis (UniMAP).
Halim: Journal of Physical Science Vol. 19 (2008), pp 77
Haroon: Materials Science Forum Vol. 803 (2015), pp 362
Online since: July 2013
Authors: Ying Yao, Ying Ying Shen, Xue Yan Du
Preparation and Characterization of Silane Modified Fe3O4 Nanoparticles by Reverse Micro-emulsion Ying Yao, Yingying Shen, Xueyan Du State Key Laboratory of Gansu Advanced Non-ferrous Metal Materials, Lanzhou University of Technology, Lanzhou 730050, China email: xueydu@hotmail.com Keywords: Fe3O4 NPs; Silane coupling agent; Modified Fe3O4 NPs; Reverse micro-emulsion Abstract.
Generally, the saturation magnetization of the materials is not only related to the preparation conditions, but also related to the thickness of the coated layer.
The decrease of saturation magnetization could imply to a certain extent that KH-570 was coated on the surface of Fe3O4 NPs.This unexpected decrease of magnetism by an organic capping layer has strong implications for the optimization of a wide family of materials.
Acknowledgement This work was supported by the National Natural Science Foundation of China (51061009).
References [1] S.Cui, X.D.Shen and B.L.Lin: Journal of Wuhan University of Technology (Materials Science) vol.23 (2008), p.436 [2] G.D.Li: J.
Online since: September 2011
Authors: Rui Rui Wang, Guang Ping Zou, Zhong Liang Chang
As the anti-impacting and energy absorption material, the aluminum foam is always used for making the sandwich plate which the aluminum foam as the core material, and the plate is usually made by metal or composite material which can enhance stiffness of the sandwich structure.
Experiment Results and Analysis The sandwich plate core material-aluminum foam is rate-dependent material, so the SHPB was adopted to test the aluminum dynamic mechanical properties, the results as shown in Fig.10, Form the Fig.10 we can see that the materials deformation is basically same with static sandwich plate compression experiment and also has "three stage", and the dynamic yield stress is nearly two times higher than the static experiment, and strain rate phenomenon is very obvious.
[2] H.S.Chen, H.Y.Zhao and M.H.Zhang: Journal of NingBo University (Natural Science & Engineering Edition) Vol. 20 (2007), p. 118-121
[3] E.H.Wang: The Dynamic Mechanical Study of Aluminum Foam and Aluminum Foam Sandwich Beam .( University of Science and Technology PhD thesis.Hefei,2005) [4] X.
[5] Z.L.Chang,G.P.Zou,W.L.Zhao,Y.Cao and R.R.Wang:Key Engineering Materials Vol. 452-453 (2011) , p.281-284
Online since: June 2012
Authors: Ainaa Zafirah Omar Arawi, Ramli Rosmamuhamadani, Mahesh Talari
Introduction Hydroxyapatite (HA, Ca10(PO4)6(OH)2) known as a implant materials because of the excellent biocompatibility and bioactivity. [2].
Material Science and Engineering C. 29, 1144-1149
Materials Letters, 61, 3978-30983
Antibacterial nanosized silver substituted hydroxyapatite: Synthesis and characterization, Journal of Biomedical Materials Research., 581-591
Materials Letters, 59, 1660 – 1664.
Online since: November 2011
Authors: Jun Xi Bi, Jin Feng Li, Li Qin Wang, Xiang Xin He, Shi Ming Gan
Although after diameter increases in unit of time to squeeze the materials will be increased.
But extruder not screw conveyor Screw besides extrusion materials, also plastic for extrusion, stirring, shear, make its plastic change.
Therefore reducer appearance a big weight means more than the consumption of materials, manufacturing, by use of bearing is larger also, therefore reducer appearance a big weight means more than the consumption of materials, manufacturing, by use of bearing is larger also,make manufacturing costs.
Conclusion The international for polymer materials modification mixed refine the new equipment.
Journal of Beijing University of Chemical Technology.(2011)
Online since: February 2012
Authors: Yong Liang Zhang, Hong Bin Liu, Rui Jie Wang, Mao Hua Du, Xiao Dong Xu
Finite element model 2.1 Constitutive model of the material To ensure correctness and reliability of the dynamic physics simulation results,the material model should be carefully selected[1,2].
The constitutive model of material is adopted Johnson-Cook model,which is a dynamic constitutive model proposed by Johnson and Cook in 1983
During the cutting process, material mesh within the cutting local region will experience violent distortion due to the high temperature and large deformation.
Acknowledgement Thanks to the support of yunnan science fund (2008ZC023M).
Turning of hardened 100Cr6 bearing steel with ceramic and PCBN cutting tools[J].Journal of Materials Processing Technology,2003,143-144,237-241 [5] Li Yufu,Yan Fugang,wang Yu,Hu Jinshu.
Online since: September 2007
Authors: Guo Bing Ying, Wang Xiang
Microstructure and Strengthening Mechanism of TiCp/ZA-12 Composites Wang Xiang1,a and Guobing Ying1,b 1 Center for Biomedical Materials and Engineering, Harbin Engineering University, China awangxiang@hrbeu.edu.cn, byingguobing@yahoo.com.cn Keywords: TiCp/ZA-12 composites, Microstructure, Strengthening mechanisms Abstract.
The present study aims at investigating the microstructure and the evaluation of the mechanical properties like tensile strength, yield strength, elastic modulus and hardness of the TiCp/ZA-12 composites in views of these being very vital properties of a structural material.
The reason is mainly that when the content of TiC particles exceeds some extent, material fluidity reduces and microscopic shrinkages form because of shrinking difficulty of the solidification process.
Eq.2 indicates that refining subgrain or crystal grain can increase flow stress cσ obviously, thereby increase the intensity of materials.
Seah, S.C.Sharma: Journal of Materials: Design and Applications, Vol.217(2003), p.201 [2] Can Kurnaz, S: Materials Science & Engineering A, Vol.A346(2003), p.108-122 [3] Auras, R., Schvezov, C: Metallurgical and Materials Transactions A, Vol.35 A ( 2004), p.1579 [4] Liu, Xiu-Zhong, Zou, Zeng-Da: Material Science and Technology, Vol.13 ( 2005), p.323 50µm (a) ZA-12 alloy 50µm (b) 10vol.
Online since: October 2006
Authors: L. Atepor, A.W. Lees, Th. Leize, Daniel J. Inman, Matthew P. Cartmell
- The functionality of SMAs within beams and plates depends significantly on the relative volume fraction of SMA to host material.
J., Vibration Suppression by Modulation of Elastic Modulus Using Shape Memory Alloy, in Intelligent Structures, Materials and Vibration, edited by M.Shahinpoor and H.S.Tzou, ASME Vol. 58, pp. 1-5., (1993)
Funakubo, H., Shape Memory Alloys, Gordon Breach Science Publications, NY., (1987)
Wiercigroch, One dimensional shape memory alloy models for use with reinforced composite structures, Smart Materials and Structures, Vol. 12, pp 338-346, (2003)
Ostachowicz, Dynamics of multilayered composite plates with shape memory alloy wires, Journal of Applied Mechanics, Transactions of the ASME, Vol. 70, pp185-212, (2003)
Online since: June 2012
Authors: Qian Ying Tang, Yuan Liu, Ya Fan He, Ping Li, Xiao Dong Xie, Gang Wang
Thus, it makes BST and PZT which are usually applied in FRAMs prospective materials as anti-fuse dielectric.
Dielectric materials with lower breakdown electric field make a low programming voltage easier to obtain by adjusting the thickness.
However, further experiments are still needed to investigate the breakdown processes of different types of materials.
Proceedings of the 3rd International Conference on Properties and Applications of Dielectric Materials" July 8-12, 1991 Tokyo, Japan
"High k Gate Dielectric and Materials Si Nanotransistor" Micronanoelectric Technology, 2006(3) [5] T.