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Online since: December 2012
Authors: Zhou Wan, Xin Xiong, Shi Li, Jia Jun Tan, Fei Li
Working principle The principle of SAW air flow sensor shows in Fig.1, whose core is SAW delay line sensor, It is a transducer and composed by piezoelectric material substrate and interdigital electrode deposited on the substrate.
Firstly, aiming at air flow detection, the temperature characteristic of piezoelectric substrate material should possess sufficient temperature sensitivity; secondly, the electromechanical coupling coefficient should be high as far as possible to increase the signal-to-noise ratio during signal transmission and processing; meanwhile, piezoelectric substrate material should also have high Curie point to ensure it won’t occur piezoelectric effect degradation under working conditions.
In the article, we selected YZ-LiNbO3 monocrystal as sensitive material of SAW flow sensor, with spread velocity of ν0=3485m/s.The interdigital transducer was placed on the piezoelectric substrate using microelectronic process.
Reference [1] Wang Zhuwei, Wang Bonian: Journal of University of Shanghai for Sicence and Technology, 1999,Vol.21, no.4, pp.397-402 ,In Chinese
[2] Gongqin Xu, Wenzhang Zhu, Nansheng Yan, Jintai Chen: Journal of Transcluction Technology, 1996, Vol.9, no.2, pp.29-32 , In Chinese
Online since: July 2008
Authors: Karen M. Holford, Keith Worden, James J. Hensman, Mark J. Eaton, S.L. Evans, Rhys Pullin
To ensure that the identification task faithfully represented the detection of a fatigue fracture event, preliminary tests were carried out on a small compact tension (CT) coupon of the same material as the landing gear.
The major advantage of this approach is that it is expected to transfer between different materials without difficulty.
International Journal of Fracture 28 1985
Submitted to Measurement Science and Technology
The Computer Journal 1965
Online since: January 2026
Authors: Spyros Papaefthymiou, Fotios Tsiolis
Hasenclever, "Evolution of micro‑chemistry during solidification and homogenisation of AA3xxx aluminium–manganese alloys," Materials Science and Technology, vol. 37, no. 10, pp. 893–908, 2021
Pogatscher, "Making sustainable aluminum by recycling scrap: The science of 'dirty' alloys," Progress in Materials Science, vol. 128, art. 100947, 2022
Gottstein, "Thermodynamics based modelling of the precipitation kinetics in commercial aluminium alloys," Computational Materials Science, vol. 81, pp. 410–417, Jan. 2014, doi: 10.1016/j.commatsci.2013.08.049
Fischer, "Modelling of kinetics in multicomponent multi‑phase systems with spherical precipitates II: Numerical solution and application," Materials Science and Engineering A, vol. 385, no. 1–2, pp. 157–165, 2004, doi:10.1016/j.msea.2004.06.016
Yan, "A model for precipitation kinetics and strengthening in Al–Cu–Mg alloys," Materials Science and Engineering A, vol. 472, pp. 66–74, 2008
Online since: October 2010
Authors: L. Perazolli, G.F. Pegler, M.R.A. Silva, R.A.F. Ingino, J.A. Varela
Material Engineering -UFSCAR, São Carlos, (1999). – Originally written in portuguese
Fennel Mineralization of Bacterial Cell Mass on a Photocatalytic Surface in Air, Environmental Science & Technology, Vol. 32, (1998) P.17
Fang Morphology and properties of ultrafinne SnO2-TiO2 coupled semiconductor particles, Materials Chemistry and Physics Vol. 62 (2000) p.62-67
Wold Effect of Silver on the Photocatalytic of TiO2, Journal of Solid State Chemistry, Vol. 106, (1993) p. 288-294
Vol. 1171 (2009), Materials Research Society
Online since: March 2012
Authors: Ya Ping Chen, Jun Qing Zong, Shi Qiang Tang
Most materials these factories generate will still be made use of by the manufacturers.
Product recycle center of a home appliance manufacturing enterprise Distributor Retailer End user Processing factory Final processing factory Home appliance Manufacturer Reverse logistics Waste material logistics Figure 1.
This mode applies to recycle of post-production or post-consumption waste materials, such as post-consumption home appliances and electronic appliances.
To handle properly the waste materials and reclaim the resources inside these waste materials requires not only advanced technology but also large amount of fund, which is usually out of reach of individual enterprise.
Journal of Cleaner Production, 2004(12), p. 37-45 [2] Yue Hui, Chen Yu.
Online since: April 2009
Authors: Mark Easton, Andreas Schiffl
Materials and Methods In this study a commercially available AZ31 Mg alloy (Mg, 3.26%Al, 0.72%Zn, 0.22%Mn, 0.0010%Fe, 0.0005%Be) was used.
References [1] StJohn, D.H., Qian, M., Easton, M.A., Cao, P. and Hildebrand, Z. (2005) Grain Refinement of Magnesium Alloys, Metallurgical and Materials Transactions A, 1669-1679
(2009) Shear Enhanced Heterogeneous Nucleation in Some Mg- and Al-Alloys, International Journal of Cast Metals Research.
[8] Yanhui, L., Xiangfa, L. and Xiufang, B. (2004) Grain refinement of Mg-Al alloys with Al4C3SiC/Al master alloy, Materials Letters, 1282-1287
(2007) Aluminium carbide formation in interpenetrating graphite/aluminium composites, Materials Science and Engineering: A, 448 (1-2), p. 1-6.
Online since: January 2015
Authors: Ming Hui He, Guang Xue Chen, Xiao Yuan Guan
Taking vegetable oil and its derivatives as biomass industrial products such as adhesive and the starting materials of composite materials can decrease the VOC(volatile organic compounds) emission, and give products good performance[1].
Experimental Section Materials and Equipments.
And it expands the scope of application of thiol-ene click reaction in the field of high-performance UV-curing materials.
Liu, et al: Packaging Engineering Vol. 34(2013), p. 106-109 [4] ESPINOSA L M D, MEIER M A R: European Polymer Journal Vol. 47(2011), p. 837-852 [5] M.H.
Chen, et al: Applied Mechanics and Materials Vol. 469(2014), p. 162-166 [10] E.
Online since: January 2010
Authors: Rene D. Rivero, Ivan Padron, Michael R. Booty, Anthony T. Fiory, Nuggehalli M. Ravindra
However, combining different materials has difficulties, and chief among these are mismatches of lattice properties and thermal expansion coefficients.
It is a method for assembly that does not place special geometric or material constraints upon the devices or on the substrate recesses.
Also, because it is a room-temperature process, materials with different lattice and thermodynamic properties can be integrated without damaging the devices or the substrates [6].
Ravindra: "The Magnetic Field-Assisted Assembly of Nanoscale Semiconductor Devices: A New Technique," Journal of Materials (JOM), Vol. 56(10) (2004), p 32
Ravindra: "A Novel Method for Parallel Assembly of Microcomponents," TMS - The Minerals Metals Materials Society Annual Meeting, San Francisco, (February 2009)
Online since: February 2011
Authors: Zi Feng Ni, Chong Liang Chen, Li Guo Liu
Introduction Diamond-like carbon coating (DLC) is a new type of thin film materials similar to diamond coating.
Journal of Mechanical Science and Technology 21(2007)1083-1089 [5] T.M.
International Materials Reviews, 2000, 45(4):133—162 [7] Mohrbacher H, Lelis.J.P.
Diamond and Reraled Materials, 1995, 4:1267-1270 [8] B.
Diamond and Related Materials, 1999, 2-5(8), 567-571
Online since: February 2016
Authors: Aleksandr A. Dyakonov, Aleksey V. Sopeltsev
Abrasive materials samples geometric structure analysis was based on implementing following method: obtaining sketch of each abrasive grain in three planes with further measuring grain overall dimensions, as well, as radii on grains peaks and sharpening angles with further statistical analysis of received data.
Perform abrasive material macrogeometrical parameters analysis; obtain data on grains granulometric composition. 2.
The study is performed on the basis of the following abrasive material: zirconium electrocorundum, abrasive grit 160, as main material, used for manufacturing rough grinding wheels.
Bauer, Experimental and numerical investigations of single abrasive-grain cutting, International Journal of Machine Tools and Manufacture, 51(12) (2011) 898-910
Murdasov, Research on Rolled Metal Rough Grinding Process: dissertation to apply for candidate of technical science degree.
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