Institute 53 of China North Group Corporation

Jinan, China

Institute 53 of China North Group Corporation

Jinan, China
SEARCH FILTERS
Time filter
Source Type

Wei H.,Institute 53 of China North Group Corporation | Zhang Q.,Institute 53 of China North Group Corporation | Li J.,Institute 53 of China North Group Corporation | Li C.,Institute 53 of China North Group Corporation | And 3 more authors.
Gaofenzi Cailiao Kexue Yu Gongcheng/Polymeric Materials Science and Engineering | Year: 2014

The thermal decomposition of phenolic resin S-157 in N2 was studied by TG-DTG. The results show that the resin S-157 has better heat resistance than common phenolic resin. The thermal decomposition apparent activation energy (E) is 210.6 kJ/mol by Kissinger equation and 208.2 kJ/mol by Ozawa equation. The thermal decomposition of the resin S-157 can be divided into three stages. The most probable kinetic mechanism function was suggested by Coats-Redfern method. During the initial reaction stage, of which the conversion ratio(αT) for the resin S-157 is less than 40%, E decreases with increase of αT, and the thermal decomposition mechanism is diffusion reaction. During the final reaction stage, of which αT is larger than 55%, the thermal decomposition mechanism is chemical reaction, and E slowly increases with increase of αT. During the transition stage, of which αT is 40%~55%, E rapidly increases with increase of αT.


Liu J.C.,Institute 53 of China North Group Corporation | Wang D.Y.,Institute 53 of China North Group Corporation | Chen Y.W.,Institute 53 of China North Group Corporation | Li S.H.,Institute 53 of China North Group Corporation | Wei H.Z.,Institute 53 of China North Group Corporation
Advanced Materials Research | Year: 2013

C/C composites are being used as high-temperature structural material due to the superior characteristics of low density, high specific strength, high thermal conductivity, low thermal expansion coefficient and excellent anti-ablation. The state of research into the manufacturing processes of Carbon-Carbon composites is critically reviewed with emphasis in this paper. The processes include several kinds of methods, for example, CVD, CVI, Liquid Impregnation and etc. And the usages of some corresponding methods in manufacturing Carbon-Carbon materials as ablation resistant materials are shown in this paper too. It will provide the references for the further development of weaponry materials in the coming years. © (2013) Trans Tech Publications, Switzerland.

Loading Institute 53 of China North Group Corporation collaborators
Loading Institute 53 of China North Group Corporation collaborators