{
  "$type": "site.standard.document",
  "description": "Fine carbon fibers having a fiber diameter of 1 mu m or less, an interlayer distance d002 between carbon layers as determined by an X-ray diffraction method of 0.335 to 0.342 nm or less and satisfying d002 < 0.3448 - 0.0028 (log phi ) where phi stands for the diameter of the carbon fibers, and a…",
  "path": "/patents/1105839",
  "publishedAt": "2002-03-27T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B82Y30/00",
    "SHOWA DENKO KK [JP]"
  ],
  "textContent": "Fine carbon fibers having a fiber diameter of 1 mu m or less, an interlayer distance d002 between carbon layers as determined by an X-ray diffraction method of 0.335 to 0.342 nm or less and satisfying d002 < 0.3448 - 0.0028 (log phi ) where phi stands for the diameter of the carbon fibers, and a thickness Lc of the crystal in the C axis direction of 40 nm or less. Fine carbon fibers containing boron in crystals of the fiber. The fine carbon fibers can be produced by using vapor-grown fine carbon fibers as a raw material, adding a boron or a boron compound to the material; pressing the mixture to regulate the bulk density to preferably 0.05 g/cm or more; and heating at a temperature of 2000 DEG C or higher.",
  "title": "CARBON FIBER, METHOD FOR PRODUCING THE SAME AND ELECTRODE FOR CELL"
}