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DIELECTRIC BEHAVIOR OF NOVEL ACETYLENE BLACK–PVDF/BaTiO3 TRI-PHASE COMPOSITE FILM

CHEN, QIAN; JIN, LU; WENG, WENJIAN; HAN, GAORONG; DU, PIYI - In: Surface Review and Letters (SRL) 15 (2008) 01, pp. 19-22

–PVDF/BaTiO3 composite film when AB content approached the percolation threshold (3.3 vol%), which is 40 times more than that of …

Persistent link: https://www.econbiz.de/10005050545

Static and dynamic electrical breakdown in conducting filled-polymers

Lamaignère, L.; Carmona, F.; Sornette, D. - In: Physica A: Statistical Mechanics and its Applications 241 (1997) 1, pp. 328-333

The electrical resistance of a percolating medium made of a polymer filled with conductive particles may undergo a steep increase over a narrow temperature range above room temperature. A likely mechanism for the effect is the loss of interparticle contact inducing a weakening of the...

Persistent link: https://www.econbiz.de/10010587605

Nonlinear conduction in composites above percolation threshold — beyond the backbone

Bardhan, K.K. - In: Physica A: Statistical Mechanics and its Applications 241 (1997) 1, pp. 267-277

We review here the response of mainly conductor-insulator mixtures just above the percolation threshold (pc) under dc …

Persistent link: https://www.econbiz.de/10011058267

Electrical transport measurements of a carbon-black—polymer composite

Heaney, Michael B. - In: Physica A: Statistical Mechanics and its Applications 241 (1997) 1, pp. 296-300

, and above the polymer melt temperature. I have also measured the DC resistivity of these composites as a function of …

Persistent link: https://www.econbiz.de/10011060668

Percolation modeling of conductance of self-healing composites

Dementsov, Alexander; Privman, Vladimir - In: Physica A: Statistical Mechanics and its Applications 385 (2007) 2, pp. 543-550

We explore the conductance of self-healing materials as a measure of the material integrity in the regime of the onset of the initial fatigue. Continuum effective-field modeling and lattice numerical simulations are reported. Our results illustrate the general features of the self-healing...

Persistent link: https://www.econbiz.de/10010873616

SURFACE PROPERTIES OF THE IN SITU FORMED CERAMICS REINFORCED COMPOSITE COATINGS ON TI-3AL-2V ALLOYS

LIU, PENG; GUO, WEI; HU, DAKUI; LUO, HUI; ZHANG, YUANBIN - In: Surface Review and Letters (SRL) 19 (2012) 02, pp. 1250009-1

The synthesis of hard composite coating on titanium alloy by laser cladding of Al/Fe/Ni+C/Si3N4 pre-placed powders has been investigated in detail. SEM result indicated that a composite coating with metallurgical joint to the substrate was formed. XRD result indicated that the composite coating...

Persistent link: https://www.econbiz.de/10010883155

INFLUENCE OF TEMPERING ON THE MICROSTRUCTURE PERFORMANCE OF THE LASER-TREATED COATINGS ON 45 STEEL

Hu, Xiaodong; Li, Yajiang - In: Surface Review and Letters (SRL) 20 (2013) 05, pp. 1350048-1

Effect of the tempering on the microstructures and tribological properties of the laser alloying coatings is investigated. Laser alloying of the T-Co50/TiC mixed powders on a 45 steel substrate can form a hard composite coating, which increased the micro-hardness and wear resistance of the...

Persistent link: https://www.econbiz.de/10010883158

Application of quantitative techniques in urban and regional studies

Jelili, Musibau - In: Quality & Quantity: International Journal of Methodology 48 (2014) 6, pp. 3209-3219

The continuing phobia for Statistics, especially among learners and at times scholars of disciplines in the built environment, and the resultant difficulties encountered in explaining and/or drawing appropriate inferences from statistical analyses, particularly when contracted out to...

Persistent link: https://www.econbiz.de/10010949431

Preparation and characterization of stearic acid/expanded graphite composites as thermal energy storage materials

Fang, Guiyin; Li, Hui; Chen, Zhi; Liu, Xu - In: Energy 35 (2010) 12, pp. 4622-4626

Stearic acid/expanded graphite composites with different mass ratios were prepared by absorbing liquid stearic acid …, crystalline phase, microstructure and thermal diffusivity of the composites, respectively. The thermal properties and thermal … approximately the same as the values calculated based on the weight fraction of the stearic acid in the composites. The …

Persistent link: https://www.econbiz.de/10010808523

EFFECT OF HEAT TREATMENT ON MICROSTRUCTURE CHARACTERISTICS OF LASER COMPOSITES

LIU, PENG; ZHANG, YUANBIN; LI, YAJIANG; YANG, QINGQING; … - In: Surface Review and Letters (SRL) 21 (2014) 01, pp. 1450014-1

In this paper, effect of heat treatment on the microstructures and wear properties of laser alloying (LA) composites is … investigated. LA of the T-Co50/FeSi/TiC/TiN/CeO2 mixed powders on substrate of 45 steel can form the hard composites, which … increased the wear resistance of substrate greatly. Such LA composites were investigated by means of a scanning electron …

Persistent link: https://www.econbiz.de/10010748354

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