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Tribological behaviour of the green anode paste with a steel plate at 150 ℃

Friction 2014年第3期2卷 272-286页

作者： Stéphane THIBODEAU Houshang D.ALAMDARI Donald P.ZIEGLER Mario FAFARD NSERC/Alcoa Industrial Research Chair MACE3 and Aluminium Research Centre−REGAL Laval UniversityQuébecQCG1V 0A6Canada Department of Mining Metallurgical and Materials Engineering1065 avenue de la Médecine Laval UniversityQuebecQCG1V 0A6Canada Alcoa Primary Metals Alcoa Technical Center100 Technical Drive Alcoa CenterPA 15069-0001USA

In order to accurately predict the mechanical behaviour of paste during forming process,the friction law between the carbon paste and the mould wall is an important parameter to be *** paper presents the tribological behaviour of the lubricated paste/steel interface subjected to high stress conditions at the anode forming temperature of 150℃.A method to characterize the tribological behaviour has been developed and an apparatus was *** method is based on the comparison of two successive *** the first experiment,the paste is in contact with the friction *** the second one,a layer of Teflon is placed under the paste in order to excite another parameter thereby allowing the identification of the friction coefficient between the paste and steel *** experiments were performed with a paste under different normal *** static and kinetic friction coefficients of the Teflon/steel,steel/steel and paste/steel interfaces have been *** static and kinetic friction coefficients of the Teflon/steel are respectively 0.17 and *** steel/steel friction coefficients were evaluated twice which gave a static coefficient that varies between 0.22 and *** kinetic coefficient varies between 0.18 and *** static and kinetic paste/steel friction coefficients obtained from both experiments are clearly *** values are 0.15 and 0.13 respectively.

关键词： carbon paste high stresses high temperature friction paste/steel interface tribological behaviour

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A novel improved design for the first-generation glucose biosensor

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南通大学学报(医学版) 2003年第1期 117-117页

作者： Wang J

The historical development of three generations of enzyme-based amperometric glucose biosensors are compared.A novel design of the first-generation glucose giosensor based on the use of metal-dispersed carbon paste electrode is *** a strategy enables remarkable selectivity and improved sensitivity,without excluding or destroying the endogenous electroactive interferences commonly associated with the first-generation glucose *** offers a strong,preferential electrocatalytic action towards the enzymatically-liberated hydrogen peroxide due to the proper selection of the transducer metal-dispersed *** the other hand,a unique,non-polar pasting liquid allows efficient operation of the resulting glucose biosensor under severe depletion of oxygen or under a considerable period of thermal stress by providing an internal oxygen supply and establishing a micro-environment of the enzyme against thermoinactivation,***-dispersed carbon paste enzyme electrodes have thus become a promising new design of the first generation biosensors,especially for blood glucose measurements and other biotechnical applications due to their remarkable selectivity,high stability,low oxygen-dependence,and good dynamic performance.

关键词： glucose biosensors enzyme electrode metal-dispersed carbon paste

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