Thermal conductivity and thermal expansion behavior of pseudo-unidirectional and 2-directional quasi-carbon fiber/phenolic composites

2004 ◽  
Vol 5 (1) ◽  
pp. 31-38 ◽  
Author(s):  
Donghwan Cho ◽  
Yusong Choi ◽  
Jong Kyoo Park ◽  
Jinyong Lee ◽  
Byung Il Yoon ◽  
...  
Keyword(s):  
Thermal Conductivity ◽  
Thermal Expansion ◽  
Carbon Fiber ◽  
Thermal Expansion Behavior ◽  
Expansion Behavior

scholarly journals Effect of Load on the Thermal Expansion Behavior of T700 Carbon Fiber Bundles

Polymers ◽  
2018 ◽  
Vol 10 (2) ◽  
pp. 152 ◽  
Author(s):  
Guoliang Geng ◽  
Xiaofei Ma ◽  
Hongbin Geng ◽  
Yiyong Wu
Keyword(s):  
Thermal Expansion ◽  
Carbon Fiber ◽  
Fiber Bundles ◽  
Thermal Expansion Behavior ◽  
Expansion Behavior ◽  
Carbon Fiber Bundles

Anomalous thermal expansion behaviors of wood under dry and low-temperature conditions

Holzforschung ◽  
2014 ◽  
Vol 68 (5) ◽  
pp. 567-574 ◽  
Author(s):  
Tsunehisa Miki ◽  
Hiroyuki Sugimoto ◽  
Yuzo Furuta ◽  
Ichinori Shigematsu ◽  
Kozo Kanayama
Keyword(s):  
Thermal Expansion ◽  
Linear Thermal Expansion ◽  
Longitudinal Direction ◽  
Mechanical Analysis ◽  
Solid Wood ◽  
Compression Pressure ◽  
Thermal Expansion Behavior ◽  
Expansion Behavior ◽  
Dry Conditions ◽  
Anomalous Thermal Expansion

Abstract The thermal expansion behavior of dry solid wood was investigated by dynamic dilatometry and thermal mechanical analysis. Anomalous thermal expansion behavior was observed concerning the displacement change under a constant compression pressure, which was not previously reported. Wood submitted to temperatures below 0°C under dry conditions exhibited a large increment in the linear thermal expansion coefficient (CLTE) and a sudden drop in the CLTE around 50°C as well as above 130°C during heating. In subsequent cooling/heating processes, these anomalous behaviors remained at temperatures below 100°C, although less pronounced, and disappeared at temperatures above 100°C. These behaviors were clearly perceptible in the radial and tangential directions but not in the longitudinal direction. The CLTE depended strongly on the heat and moisture history of the samples and the effects are species-specific.

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