Title:
多結晶ダイヤモンドおよびその製造方法、スクライブツール、スクライブホイール、ドレッサー、回転工具、ウォータージェット用オリフィス、伸線ダイス、切削工具、電極ならびに多結晶ダイヤモンドを用いた加工方法
Document Type and Number:
Japanese Patent JP7014177
Kind Code:
B2
Abstract:
Provided is polycrystalline diamond having a diamond single phase as basic composition, in which the polycrystalline diamond includes a plurality of crystal grains and contains boron, at least either of nitrogen and silicon, and a remainder including carbon and trace impurities; the boron is dispersed in the crystal grains at an atomic level, and greater than or equal to 90 atomic% of the boron is present in an isolated substitutional type; the nitrogen and the silicon are present in an isolated substitutional type or an interstitial type in the crystal grains; each of the crystal grains has a grain size of less than or equal to 500 nm; and the polycrystalline diamond has a surface covered with a protective film.
Inventors:
Gerald W. Gibson
Keiko Arimoto
Yamamoto Kazuko
Hitoshi Sumiya
Keiko Arimoto
Yamamoto Kazuko
Hitoshi Sumiya
Application Number:
JP2018554205A
Publication Date:
February 15, 2022
Filing Date:
November 29, 2017
Export Citation:
Assignee:
Sumitomo Electric Industries, Ltd.
International Classes:
C01B32/25; B01J3/06; B23B27/14; B23B27/20; B23B51/00; B23C5/16; B26F3/00; B28D5/00; C01B32/26; C04B35/528; C23C16/26; C23C16/56; C25B11/043; C30B29/04
Domestic Patent References:
| JP2015030646A | ||||
| JP7299467A | ||||
| JP2008543718A | ||||
| JP2013028495A | ||||
| JP2013028500A |
Attorney, Agent or Firm:
Fukami patent office