Abstract: The present invention relates to a method for preparing a carbon-carbon composite. The method of the present invention comprises adding a ceramic-based oxidation inhibitor having a brittle-to-ductile transition, to thereby eliminate high densification processes via re-impregnation and re-carbonization. The present invention also relates to a carbon-carbon composite prepared thereby that comprises a ceramic powder added to a thermosetting resin.
Type:
Grant
Filed:
December 31, 1998
Date of Patent:
July 17, 2001
Assignee:
Korea Research Institute of Chemical Technology
Inventors:
Soo-Jin Park, Jae-Rock Lee, Min-Seok Cho
Abstract: Disclosed is a plate-like carbon fiber-reinforced composite material comprising carbon fibers, wherein that the carbon fibers have a strain at compressive break of 1.7 to 5%, a tensile elastic modulus of 5 to 160 GPa, and a density of 1.5 to 1.9 g/cm3 and further in that the composite comprising said carbon fibers cause no delamination by an impact energy of less than 1.4 J/mm in the test of compression after impact in accordance with JIS K 7089.
Abstract: A power transmission belt having a body with a length and defined by a cushion rubber layer having at least one load carrying cord embedded therein and extending lengthwise with respect to the body, and a compression section made at least partially from rubber. The cushion rubber layer has a rubber composition including an ethylene-&agr;-olefin elastomer capable of being cross-linked with sulfur. The rubber in the compression section is a rubber composition made from an ethylene-&agr;-olefin elastomer capable of being cross-linked with an organic peroxide.