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    • 10. 发明专利
    • Rod-like diamond single crystal and its production
    • ROD型钻石单晶及其生产
    • JPS593100A
    • 1984-01-09
    • JP11039882
    • 1982-06-25
    • Sumitomo Electric Ind Ltd
    • TSUJI KAZUO
    • C01B31/06B01J3/06C30B9/00C30B9/10C30B13/02C30B29/04
    • C30B13/02B01J3/062B01J2203/061B01J2203/062B01J2203/0625B01J2203/0655B01J2203/068C30B9/00C30B29/04
    • PURPOSE:To obtain diamond having a shape suited as a tool and the surface condition that permits adhesion to a tool support at high strength in a producing method using solvent metal by limiting the diameter of the solvent metal. CONSTITUTION:This diamond has irregular sectional shapes such as circular, polygonal, pentagram and other shapes, and has the >=1.5 times length for the diameter of these sectional areas. It is a rod-like single crystal of which the longitudinal direction is in the or or direction and of which the surface has ruggedness 10 like a ground glass. In the case of synthesizing a piece of the single crystal of such diamond having, for example, a circular cylindrical shape, solvent metal 8 is worked to a shape having a circular cylindrical leg, and the diameter thereof is limited to the size smaller than the size of the diamond to be grown. Such metal is laminated with a carbon supply source 3 and seed crystal diamond 1 as shown in the figure, and the top and bottom end parts of the metal 8 are heated to high and low temps. under ultra-high pressure and high temp. to deposit carbon as diamond on the seed crystal by utilizing the difference of solubility of the carbon in the metal 8.
    • 目的:获得具有适合作为工具的形状的金刚石,以及通过限制溶剂金属的直径,在使用溶剂金属的制造方法中能够以高强度粘附到工具支架上的表面状态。 构成:该钻石具有不规则的截面形状,例如圆形,多边形,五角形和其他形状,并且对于这些截面积的直径具有> = 1.5倍的长度。 它是长方向为<111>或<100>或<110>方向的棒状单晶,其表面具有如磨玻璃的坚固度10。 在合成具有例如圆柱形状的这种金刚石的单晶片的情况下,将溶剂金属8加工成具有圆柱形腿的形状,并且其直径被限制为小于 要生长的钻石的大小。 这样的金属与碳供应源3和晶种金刚石1层叠,如图所示,金属8的顶端部和底端部分被加热到高和低温度。 在超高压和高温下。 通过利用碳在金属8中的溶解度的差异将碳作为金刚石沉积在晶种上。