Narrow search
Showing 1 - 10 of 235
Cover Image
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
Cover Image
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
Cover Image
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
Cover Image
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
Cover Image
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
Cover Image
PREPARATION, MICROSTRUCTURE AND PERFORMANCE OF NANOSCALE CERAMICS REINFORCED HARD COMPOSITE COATING
LI, PENG - In: Surface Review and Letters (SRL) 21 (2014) 01, pp. 1450004-1
a laser cladding technique, the parameters of which provide almost crack-free composites with low porosity. To the best … of our knowledge, it is the first time that Stellite SF12-B4C-TiN-Mo mixed powders are deposited as the hard composites …
Persistent link: https://www.econbiz.de/10010748355
Cover Image
PHYSICAL AND MICROSTRUCTURE PROPERTIES OF MgAl2C2 MATRIX COMPOSITE COATING ON TITANIUM
LI, PENG - In: Surface Review and Letters (SRL) 21 (2014) 01, pp. 1450008-1
This work is based on the dry sliding wear of the MgAl2C2-TiB2-FeSi composite coating deposited on a pure Ti using a laser cladding technique. Scanning electron microscope images indicate that the nanocrystals and amorphous phases are produced in such coating. X-ray diffraction result indicated...
Persistent link: https://www.econbiz.de/10010748356
Cover Image
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
Cover Image
Globalisation and changes of aircraft manufacturing production/supply-chains – the case of China
Eriksson, Soren - In: International Journal of Logistics Economics and … 3 (2011) 1, pp. 70-83
The globalisation processes taking place in recent decades imply the functional integration of development, design and manufacturing. In many newly industrialising economies, such as China, one of the industries sought after is the high-technology aircraft industry. China has emerged as an...
Persistent link: https://www.econbiz.de/10010816503
Cover Image
Design of composite tidal turbine blades
Grogan, D.M.; Leen, S.B.; Kennedy, C.R.; Ó Brádaigh, C.M. - In: Renewable Energy 57 (2013) C, pp. 151-162
Tidal turbine blades are subjected to significant thrust and torsional loadings due to the high density of the seawater in which they operate. These thrust loadings lead to high bending moments at the blade root, which can prove to be a serious design constraint for these devices and can have...
Persistent link: https://www.econbiz.de/10011044383