Investigation of elastic and thermal properties of carbon-base bodies.

Elastic properties and permanent set were investigated at room temperature for carbons made of graphitized filler (soft and hard) and for carbons impregnated in the baked or graphitized state in dependence on the heat-treatment temperature. An apparatus for study of deformation at high temperatures (1000 - 3000 C) was built and calibrated. Results for the variation of Young's modulus with ambient temperature were reported. Another improved apparatus for studies of heat conductivity at high temperatures was finished and also put into operation. Studies of corrections to the heat conductivity due to convection by gas across the pores were made and it is shown that such corrections are necessary even in the case of quite dense carbons. Transverse heat diffusivity was investigated in the range 700 - 2800 C by a transient state method, using a newly constructed apparatus; good fit with previously found data in the low temperature range is obtained. A general discussion of the aims of the project is included. (Author)."February 1961."Includes bibliographical references (page 54)Elastic properties and permanent set were investigated at room temperature for carbons made of graphitized filler (soft and hard) and for carbons impregnated in the baked or graphitized state in dependence on the heat-treatment temperature. An apparatus for study of deformation at high temperatures (1000 - 3000 C) was built and calibrated. Results for the variation of Young's modulus with ambient temperature were reported. Another improved apparatus for studies of heat conductivity at high temperatures was finished and also put into operation. Studies of corrections to the heat conductivity due to convection by gas across the pores were made and it is shown that such corrections are necessary even in the case of quite dense carbons. Transverse heat diffusivity was investigated in the range 700 - 2800 C by a transient state method, using a newly constructed apparatus; good fit with previously found data in the low temperature range is obtained. A general discussion of the aims of the project is included. (Author).Report prepared by the Carbon Research Laboratory of the University of Buffalo, under USAF Contrct No.Mode of access: Internet

Investigation of elastic and thermal properties of carbon-base-bodies.

"June 1962."Cover title.Includes bibliographical references (page 45).Prepared under ContractMode of access: Internet