GAS-PERMEABLE COMPOSITE MATERIAL, ITS PRODUCTION METHOD AND SUPPORTING BODY FOR GAS PERMEATION MEMBRANE USING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide a highly practical gas-permeable material having excellent gas permeability and having mechanical properties, and to provide its production method.;SOLUTION: The gas-permeable material is obtained by compounding carbon and metal in such a manner that the carbon content is controlled to 10 to 90 vol%, and in which pores are formed in the grain boundaries between the carbon and metal or in voids between the carbon and carbon, the leakage of helium is ≥1×10^-11Pa×m³/sec, and bending strength is ≥10 MPa. The method for producing a gas-permeable material comprises: a stage wherein carbon and metal are mixed; and a stage wherein the mixture is integrated by sintering; or a stage wherein a carbon structure is produced; and a stage wherein metal is infiltrated into the carbon structure.;COPYRIGHT: (C)2006,JPO&NCIPI