Title:
【発明の名称】ピッチ系炭素発泡体および複合体ならびにその用法
Document Type and Number:
Japanese Patent JP2003525836
Kind Code:
A
Abstract:
A thermally conductive carbon foam is provided, normally having a thermal conductivity of at least 40 W/m.K. The carbon foam usually has a specific thermal conductivity, defined as the thermal conductivity divided by the density, of at least about 75 W.cm3/m.° K.gm. The foam also has a high specific surface area, typically at least about 6,000 m2/m3. The foam is characterized by an x-ray diffraction pattern having "doublet" 100 and 101 peaks characterized by a relative peak split factor no greater than about 0.470. The foam is graphitic and exhibits substantially isotropic thermal conductivity. The foam comprises substantially ellipsoidal pores and the mean pore diameter of such pores is preferably no greater than about 340 microns. Other materials, such as phase change materials, can be impregnated in the pores in order to impart beneficial thermal properties to the foam. Heat exchange devices and evaporatively cooled heat sinks utilizing the foams are also disclosed.
Inventors:
Klett, James W.
Burchell, Timothy Dee.
Chow Dolly, Ashok
Burchell, Timothy Dee.
Chow Dolly, Ashok
Application Number:
JP2001565312A
Publication Date:
September 02, 2003
Filing Date:
March 05, 2001
Export Citation:
Assignee:
Utility-Batel LLC
International Classes:
C01B31/04; C04B35/52; C04B38/00; F28D5/02; F28D20/02; F28F13/18; F28F21/02; (IPC1-7): C01B31/04; C04B35/52; C04B38/00
Foreign References:
| WO1999011585A1 | 1999-03-11 |
Attorney, Agent or Firm:
Hironobu Onda (1 person outside)