Preparation of carbonaceous materials whiskerized with carbon fibers. Part 3. Carbon whiskerization on the polyacrylonitrile- and pitch-based carbon fibers.
نویسندگان
چکیده
منابع مشابه
FABRICATION OF CARBON FIBERS FROM COMMERCIAL WET SPIN POLYACRYLONITRILE FIBERS
Carbon fibers are fabricated from different materials such as special polyacrylonitrile (PAN) fibers, cellulose fibers and pitch. But PAN fibers are recognized as the most widely used precursor for the present-day manufacture of carbon fibers. The process of fabrication carbon fibers from special PAN fibers is composed of two steps including oxidative stabilization at low temperature and carbon...
متن کاملMultiwall Carbon Nanotube Reinforcement of Polyacrylonitrile Fibers
Aligning multiwall carbon nanotubes (MWNTs) with the direction of load is desirable for maximizing tensile reinforcement in composites. This has been accomplished by spinning composite fibers containing MWNTs[1]. The shear and elongational flow fields inherent to fiber processing cause the MWNTs to align with the fiber axis. Efficient stress transfer from the matrix to the MWNTs is also a cruci...
متن کاملPolyacrylonitrile Single-Walled Carbon Nanotube Composite Fibers
! " # $ @ %&' ( ) * " + , * -" + , " ( ) . / %0' " *1 ) ( # , 23 4 5 63 3"3 ) , 1 # 3 3 7 77 89* : ; 6 3 6 -" <=3) 3 1 4" + > " ( ) > * # 3 ) 61 *1 1 4 , 1 # > 1 9 ? 6 3# "63 ,@ AA $ 89* : %0' ( 3 44 66; *1 ) 4? 1 4 / 3 6 4 *#63 " 63 3"3 ) , 1 # " A7 A %&&' , 6 B B 6 6"== 3 4 # 3 C)) 1 ) ? > 6 1 8 D D D E$A: 3 1 6 1 4 3 5 1 C) ) 1 ) *1 3 ) 1 > 6 1 85 FE D D D A 4 5 FE D 7D D : *"== 3 3 > 1 9 ? ...
متن کاملTHE STUDY OF ELECTROLESS COATING OF NICKEL ON CARBON FIBERS
The continuity and thickness of the coating layer, are the most important factors in wetting properties and strength of carbon fibers. These factors are crucial in the quality of metal matrix composites made with carbon fibers. In this research the Polyacrylonitrail base carbon fibers have been nickel coated with 0.2, 0.5, 0.8 and 11 ,u in thickness, by the electroless method. The effect of the...
متن کامل" Mesophase " - Pitch - Based Carbon Fibers : Part ‡ U Mechanical Properties and Thermal Expansion
Mechanical properties such as strength, modulus and strain to break, and coefficients of thermal expansion of mesophase-pitch-based carbon fibers were measured using the fibers with four different microtextures heat-treated at two different temperatures. The textures were radial with wedge, radial, random and onion. In strain to break of the fibers, there were not so much difference with differ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of The Japan Petroleum Institute
سال: 1985
ISSN: 0582-4664
DOI: 10.1627/jpi1958.28.409