Influence of untreated and novel electron-beam-modified surface-coated silica filler on the thermorheological properties of ethylene-octene copolymer

2003 ◽  
Vol 90 (9) ◽  
pp. 2453-2459 ◽  
Author(s):  
Sudip Ray ◽  
Anil K. Bhowmick ◽  
S. Swayajith
Keyword(s):  
Electron Beam ◽  
Silica Filler ◽  
Modified Surface ◽  
Ethylene Octene Copolymer

Influence of Novel Electron Beam Modified Surface Treated Dual Phase Filler on Rheometric and Mechanical Properties of Styrene Butadiene Rubber Vulcanizates

2003 ◽  
Vol 76 (2) ◽  
pp. 299-317 ◽  
Author(s):  
A. M. Shanmugharaj ◽  
Anil K. Bhowmick
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Electron Beam ◽  
Styrene Butadiene Rubber ◽  
Dual Phase ◽  
Butadiene Rubber ◽  
Elongation At Break ◽  
Polymer Filler ◽  
Modified Surface ◽  
Styrene Butadiene

Abstract Rheometric and mechanical properties, hysteresis and swelling behavior of the Styrene-Butadiene Rubber vulcanizates (SBR) filled with unmodified and novel electron beam modified surface treated dual phase fillers were investigated. Scorch time increases for these modified filler loaded vulcanizates due to introduction of quinone type oxygen on the surface. Electron beam modification of dual phase filler in the absence of trimethylol propanetriacrylate (TMPTA) or triethoxysilylpropyltetrasulphide (Si-69) significantly improves the modulus of the SBR vulcanizates, whereas the values of tensile strength and elongation at break drop. However, presence of TMPTA or silane slightly increases the modulus with significant improvement in tensile strength. This effect is more pronounced at higher loading of these modified fillers in SBR vulcanizates. These variations in modulus and tensile strength are explained by the equilibrium swelling data, Kraus plot and a new mathematical model interpreting the polymer-filler interaction. Hysteresis loss ratio of SBR vulcanizates loaded with irradiated fillers in absence and presence of TMPTA or silane increases due to highly aggregated structure of the filler.

Characterization of electron beam modified surface of Zircaloy-4

2006 ◽  
Vol 426 (1-2) ◽  
pp. 176-179 ◽  
Author(s):  
M. Ahmad ◽  
J.I. Akhter ◽  
G. Ali ◽  
M. Akhtar ◽  
M.A. Choudhry
Keyword(s):  
Electron Beam ◽  
Modified Surface

Erratum to “Characterization of electron beam modified surface of Zircaloy-4” [J. Alloys Compd. 426 (2006) 176–179]

2007 ◽  
Vol 428 (1-2) ◽  
pp. 362 ◽  
Author(s):  
M. Ahmad ◽  
J.I. Akhter ◽  
G. Ali ◽  
M. Akhtar ◽  
M.A. Choudhry
Keyword(s):  
Electron Beam ◽  
Modified Surface

Characterization of electron-beam-modified surface coated clay fillers and their influence on physical properties of rubbers

2002 ◽  
Vol 65 (6) ◽  
pp. 627-640 ◽  
Author(s):  
Sudip Ray ◽  
Anil K Bhowmick ◽  
K.S.S Sarma ◽  
A.B Majali ◽  
V.K Tikku
Keyword(s):  
Electron Beam ◽  
Physical Properties ◽  
Modified Surface

Nanostructure of 45# Carbon Steel by High Current Pulsed Electron Beam

2009 ◽  
Vol 79-82 ◽  
pp. 317-320
Author(s):  
Hui Zou ◽  
H.R. Jing ◽  
Sheng Zhi Hao ◽  
Chuang Dong
Keyword(s):  
Surface Layer ◽  
Electron Beam ◽  
Electron Microscope ◽  
Carbon Steel ◽  
Short Pulse ◽  
White Layer ◽  
High Current ◽  
Near Surface ◽  
Pulsed Electron Beam ◽  
Modified Surface

When high current pulsed electron beam (HCPEB) transferring its energy into a very thin surface layer within a short pulse time, super fast processes such as heating, melting, evaporation and consequent solidification, as well as dynamic stress induced may impart the surface layer with improved properties. In this paper, HCPEB modification of 45# carbon steel with working parameters of electron energy 25 kV, pulse duration 3.5µs, and energy density 4 J/cm2 was investigated. The microstructures of modified surface were analyzed by scanning electron microscope (SEM) of type JSM 5310 and transmission electron microscope (TEM) of type H-800. It is found that the modified surface layer can be divided into three zones: the white layer or melted layer of depth 3 to10µm, the heat and stress effecting zone 10 µm below and about 250 µm, then matrix, where a nanostructure and/or amorphous layer formed in the near-surface region. It is proved that the whole treatment process is not complex and cost-effective, and has a substantial potential to be applied in industries.

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