公开(公告)号：US09714197B2

公开(公告)日：2017-07-25

申请号：US14235763

申请日：2012-07-26

申请人： Kazuhiro Ikeda ,  Keiko Arimoto ,  Katsuko Yamamoto ,  Hitoshi Sumiya ,  Takeshi Sato

发明人： Kazuhiro Ikeda ,  Keiko Arimoto ,  Katsuko Yamamoto ,  Hitoshi Sumiya ,  Takeshi Sato

IPC分类号： B24D3/00 ,  B24D11/00 ,  B24D18/00 ,  B24D3/02 ,  C09K3/14 ,  C04B35/52 ,  C01B31/06 ,  B01J3/06

CPC分类号： C04B35/52 ,  B01J3/062 ,  B01J2203/061 ,  B01J2203/0655 ,  C01B32/25 ,  C04B2235/42 ,  C04B2235/427 ,  Y10T428/2982

摘要： Nano polycrystalline diamond is composed of carbon, an element of different type which is an element other than carbon and is added to be dispersed in carbon at an atomic level, and an inevitable impurity. The polycrystalline diamond has a crystal grain size not greater than 500 nm. The polycrystalline diamond can be fabricated by subjecting graphite in which the element of different type which is an element other than carbon has been added to be dispersed in carbon at an atomic level to heat treatment within high-pressure press equipment.

公开(公告)号：US20140186629A1

公开(公告)日：2014-07-03

申请号：US14235763

申请日：2012-07-26

申请人： Kazuhiro Ikeda ,  Keiko Arimoto ,  Katsuko Yamamoto ,  Hitoshi Sumiya ,  Takeshi Sato

发明人： Kazuhiro Ikeda ,  Keiko Arimoto ,  Katsuko Yamamoto ,  Hitoshi Sumiya ,  Takeshi Sato

IPC分类号： C01B31/06

CPC分类号： C04B35/52 ,  B01J3/062 ,  B01J2203/061 ,  B01J2203/0655 ,  C01B32/25 ,  C04B2235/42 ,  C04B2235/427 ,  Y10T428/2982

摘要： Nano polycrystalline diamond is composed of carbon, an element of different type which is an element other than carbon and is added to be dispersed in carbon at an atomic level, and an inevitable impurity. The polycrystalline diamond has a crystal grain size not greater than 500 nm. The polycrystalline diamond can be fabricated by subjecting graphite in which the element of different type which is an element other than carbon has been added to be dispersed in carbon at an atomic level to heat treatment within high-pressure press equipment.

摘要翻译： 纳米多晶金刚石由碳，作为除碳以外的元素的不同类型的元素组成，并且以碳原子级加入并且不可避免的杂质。 多晶金刚石的晶粒尺寸不大于500nm。 多晶金刚石可以通过将其中已经加入作为碳以外的元素的不同类型的元素以原子级分散在碳中的石墨制成，以在高压压制设备中进行热处理。

公开(公告)号：US20140170055A1

公开(公告)日：2014-06-19

申请号：US14235758

申请日：2012-07-26

申请人： Kazuhiro Ikeda ,  Keiko Arimoto ,  Katsuko Yamamoto ,  Hitoshi Sumiya

发明人： Kazuhiro Ikeda ,  Keiko Arimoto ,  Katsuko Yamamoto ,  Hitoshi Sumiya

IPC分类号： C01B31/06

CPC分类号： C01B32/25 ,  B01J3/062 ,  B01J2203/061 ,  B01J2203/0655

摘要： Nano polycrystalline diamond is composed of carbon and a plurality of impurities other than carbon. A concentration of each of the plurality of impurities is not higher than 0.01 mass %, and the nano polycrystalline diamond has a crystal grain size (a maximum length) not greater than 500 nm. The nano polycrystalline diamond can be fabricated by preparing graphite in which a concentration of an impurity is not higher than 0.01 mass % and converting graphite to diamond by applying an ultra-high pressure and a high temperature to graphite.

摘要翻译： 纳米多晶金刚石由碳和除碳以外的多种杂质组成。 多个杂质的浓度不高于0.01质量％，纳米多晶金刚石的结晶粒径（最大长度）不大于500nm。 可以通过制备其中杂质浓度不高于0.01质量％的石墨并通过对石墨施加超高压和高温将石墨转化为金刚石来制造纳米多晶金刚石。

公开(公告)号：US09850135B2

公开(公告)日：2017-12-26

申请号：US14235758

申请日：2012-07-26

申请人： Kazuhiro Ikeda ,  Keiko Arimoto ,  Katsuko Yamamoto ,  Hitoshi Sumiya

发明人： Kazuhiro Ikeda ,  Keiko Arimoto ,  Katsuko Yamamoto ,  Hitoshi Sumiya

IPC分类号： B01J3/06 ,  C01B31/06

CPC分类号： C01B32/25 ,  B01J3/062 ,  B01J2203/061 ,  B01J2203/0655

摘要： Nano polycrystalline diamond is composed of carbon and a plurality of impurities other than carbon. A concentration of each of the plurality of impurities is not higher than 0.01 mass %, and the nano polycrystalline diamond has a crystal grain size (a maximum length) not greater than 500 nm. The nano polycrystalline diamond can be fabricated by preparing graphite in which a concentration of an impurity is not higher than 0.01 mass % and converting graphite to diamond by applying an ultra-high pressure and a high temperature to graphite.

公开(公告)号：US08784767B2

公开(公告)日：2014-07-22

申请号：US13517921

申请日：2011-08-10

申请人： Hitoshi Sumiya ,  Katsuko Yamamoto ,  Takeshi Sato ,  Keiko Arimoto

发明人： Hitoshi Sumiya ,  Katsuko Yamamoto ,  Takeshi Sato ,  Keiko Arimoto

IPC分类号： B01J3/06 ,  B26D3/08 ,  B31B1/25 ,  B26D11/00 ,  B24B21/18 ,  B23F21/03 ,  B21C3/00 ,  B23H7/00 ,  A62C31/02 ,  B32B7/02 ,  G11B5/64

CPC分类号： B01J3/062 ,  B01J2203/061 ,  B01J2203/0655 ,  B01J2203/068 ,  B01J2203/0685 ,  B23B2226/315 ,  B23C2226/315 ,  B24B53/12 ,  B24D3/00 ,  C01B32/25 ,  Y10T83/0215 ,  Y10T83/0333 ,  Y10T83/0385 ,  Y10T83/929 ,  Y10T83/9372 ,  Y10T428/24975 ,  Y10T428/265

摘要： Polycrystalline diamond includes cubic diamond and hexagonal diamond, and a ratio of X-ray diffraction peak intensity of a (100) plane of the hexagonal diamond to X-ray diffraction peak intensity for a (111) plane of cubic diamond is not lower than 0.01%. In addition, a present method of manufacturing polycrystalline diamond includes the steps of preparing a non-diamond carbon material having a degree of graphitization not higher than 0.58 and directly converting the non-diamond carbon material to cubic diamond and hexagonal diamond and sintering the non-diamond carbon material, without adding any of a sintering agent and a binder, under pressure and temperature conditions at which diamond is thermodynamically stable.

摘要翻译： 多晶金刚石包括立方金刚石和六角形金刚石，并且六方晶系的（100）面的X射线衍射峰强度与立方晶体的（111）面的X射线衍射峰强度的比率不低于0.01 ％。 另外，制造多晶金刚石的现有方法包括以下步骤：制备石墨化程度不高于0.58的非金刚石碳材料，并将非金刚石碳材料直接转化成立方金刚石和六角形金刚石， 金刚石碳材料，在金刚石在热力学稳定的压力和温度条件下，不添加任何烧结剂和粘合剂。

公开(公告)号：US20120258035A1

公开(公告)日：2012-10-11

申请号：US13517921

申请日：2011-08-10

申请人： Hitoshi Sumiya ,  Katsuko Yamamoto ,  Takeshi Sato ,  Keiko Arimoto

发明人： Hitoshi Sumiya ,  Katsuko Yamamoto ,  Takeshi Sato ,  Keiko Arimoto

IPC分类号： C01B31/00 ,  B26D3/08 ,  B24B53/12 ,  B05B1/00 ,  B24D3/00 ,  B26D7/00 ,  B26D1/00 ,  B23H11/00 ,  C01B31/06 ,  B21C3/02

CPC分类号： B01J3/062 ,  B01J2203/061 ,  B01J2203/0655 ,  B01J2203/068 ,  B01J2203/0685 ,  B23B2226/315 ,  B23C2226/315 ,  B24B53/12 ,  B24D3/00 ,  C01B32/25 ,  Y10T83/0215 ,  Y10T83/0333 ,  Y10T83/0385 ,  Y10T83/929 ,  Y10T83/9372 ,  Y10T428/24975 ,  Y10T428/265

摘要： Polycrystalline diamond includes cubic diamond and hexagonal diamond, and a ratio of X-ray diffraction peak intensity of a (100) plane of the hexagonal diamond to X-ray diffraction peak intensity for a (111) plane of cubic diamond is not lower than 0.01%. In addition, a present method of manufacturing polycrystalline diamond includes the steps of preparing a non-diamond carbon material having a degree of graphitization not higher than 0.58 and directly converting the non-diamond carbon material to cubic diamond and hexagonal diamond and sintering the non-diamond carbon material, without adding any of a sintering agent and a binder, under pressure and temperature conditions at which diamond is thermodynamically stable.

摘要翻译： 多晶金刚石包括立方金刚石和六角形金刚石，并且六方晶系的（100）面的X射线衍射峰强度与立方晶体的（111）面的X射线衍射峰强度的比率不低于0.01 ％。 另外，制造多晶金刚石的现有方法包括以下步骤：制备石墨化程度不高于0.58的非金刚石碳材料，并将非金刚石碳材料直接转化成立方金刚石和六角形金刚石， 金刚石碳材料，在金刚石在热力学稳定的压力和温度条件下，不添加任何烧结剂和粘合剂。

公开(公告)号：US08747798B2

公开(公告)日：2014-06-10

申请号：US13517921

申请日：2011-08-10

申请人： Hitoshi Sumiya ,  Katsuko Yamamoto ,  Takeshi Sato ,  Keiko Arimoto

发明人： Hitoshi Sumiya ,  Katsuko Yamamoto ,  Takeshi Sato ,  Keiko Arimoto

IPC分类号： B01J3/06 ,  B26D3/08 ,  B31B1/25 ,  B26D11/00 ,  B24B21/18 ,  B23F21/03 ,  B21C3/00 ,  B23H7/00 ,  A62C31/02 ,  B32B7/02 ,  G11B5/64

摘要： Polycrystalline diamond includes cubic diamond and hexagonal diamond, and a ratio of X-ray diffraction peak intensity of a (100) plane of the hexagonal diamond to X-ray diffraction peak intensity for a (111) plane of cubic diamond is not lower than 0.01%. In addition, a present method of manufacturing polycrystalline diamond includes the steps of preparing a non-diamond carbon material having a degree of graphitization not higher than 0.58 and directly converting the non-diamond carbon material to cubic diamond and hexagonal diamond and sintering the non-diamond carbon material, without adding any of a sintering agent and a binder, under pressure and temperature conditions at which diamond is thermodynamically stable.

公开(公告)号：US20100146865A1

公开(公告)日：2010-06-17

申请号：US12600618

申请日：2009-02-05

申请人： Takeshi Sato ,  Katsuko Yamamoto ,  Naohiro Toda ,  Hitoshi Sumiya ,  Yutaka Kobayashi

发明人： Takeshi Sato ,  Katsuko Yamamoto ,  Naohiro Toda ,  Hitoshi Sumiya ,  Yutaka Kobayashi

IPC分类号： C01B31/06 ,  B05B1/02 ,  B24B7/00 ,  B24B5/00 ,  B05B1/00

CPC分类号： C01B32/25 ,  B26F3/004 ,  B82Y30/00 ,  C03B33/107 ,  C04B35/528 ,  C04B35/645 ,  C04B2235/425 ,  C04B2235/5427 ,  C04B2235/5436 ,  C04B2235/5445 ,  C04B2235/5454 ,  C04B2235/5481 ,  C04B2235/72 ,  C04B2235/781 ,  C04B2235/785 ,  Y10T428/218 ,  Y10T428/268

摘要： An object is to provide polycrystalline diamond applicable to diverse applications; and a water jet orifice, a stylus for gravure printing, a scriber, a diamond cutting tool, and a scribing wheel that include such polycrystalline diamond. This object is achieved by polycrystalline diamond obtained by converting and sintering non-diamond carbon under an ultrahigh pressure and at a high temperature without addition of a sintering aid or a catalyst, wherein sintered diamond grains constituting the polycrystalline diamond have an average grain diameter of more than 50 nm and less than 2500 nm and a purity of 99% or more, and the diamond has a D90 grain diameter of (average grain diameter+average grain diameter×0.9) or less.

摘要翻译： 目的是提供适用于多种应用的多晶金刚石; 以及喷水孔，用于凹版印刷的触笔，划线器，金刚石切割工具和包括这种多晶金刚石的划线轮。 该目的是通过在超高压和高温下转化和烧结非金刚石碳而获得的多晶金刚石，而不添加烧结助剂或催化剂，其中构成多晶金刚石的烧结金刚石晶粒的平均晶粒直径更多 金刚石的D90粒径（平均粒径+平均粒径×0.9）以下，优选为50nm以上且小于2500nm，纯度为99％以上。

公开(公告)号：US20140026492A1

公开(公告)日：2014-01-30

申请号：US14111289

申请日：2012-04-10

申请人： Natsuo Tatsumi ,  Katsuko Yamamoto ,  Hitoshi Sumiya

发明人： Natsuo Tatsumi ,  Katsuko Yamamoto ,  Hitoshi Sumiya

IPC分类号： B23B27/20

CPC分类号： B23B27/20 ,  B23B27/141 ,  B23B2226/125 ,  B82Y30/00 ,  C04B35/52 ,  C04B35/5831 ,  C04B35/645 ,  C04B2235/421 ,  C04B2235/425 ,  C04B2235/427 ,  C04B2235/5436 ,  C04B2235/5445 ,  C04B2235/6567 ,  C04B2235/666 ,  C04B2235/781 ,  C04B2235/782 ,  C04B2235/785 ,  C04B2235/81 ,  C04B2235/87 ,  Y10T407/26 ,  Y10T407/27

摘要： The present invention provides a cutting tool that achieves cutting with high precision. The cutting tool of the present invention includes a cutting edge composed of a polycrystalline body including high-pressure-phase hard grains that contain one or more elements selected from the group consisting of boron, carbon, and nitrogen, the polycrystalline body being formed by subjecting a non-diamond carbon material and/or boron nitride, serving as a starting material, to direct conversion sintering under ultra-high pressure and high temperature without adding a sintering aid or a catalyst, in which letting the radius of curvature of the nose of the cutting edge of the cutting tool be R1, the sintered grains constituting the polycrystalline body have an average grain size of 1.2×R1 or less and a maximum grain size of 2×R1 or less.

摘要翻译： 本发明提供一种以高精度实现切割的切削工具。 本发明的切削工具包括由包含高压相硬质粒子的多晶体构成的切削刃，所述高压相硬质粒子含有选自硼，碳和氮的一种以上的元素，所述多晶体通过 作为起始原料的非金刚石碳材料和/或氮化硼，在超高压和高温下直接转化烧结，而不添加烧结助剂或催化剂，其中使得鼻子的曲率半径 切削刀具的切削刃为R1，构成多晶体的烧结晶粒的平均粒径为1.2×R1以下，最大粒径为2×R1以下。

公开(公告)号：US09403215B2

公开(公告)日：2016-08-02

申请号：US14111289

申请日：2012-04-10

申请人： Natsuo Tatsumi ,  Katsuko Yamamoto ,  Hitoshi Sumiya

发明人： Natsuo Tatsumi ,  Katsuko Yamamoto ,  Hitoshi Sumiya

IPC分类号： B23B27/14 ,  B23B27/20 ,  C04B35/52 ,  C04B35/5831 ,  C04B35/645 ,  B82Y30/00

CPC分类号： B23B27/20 ,  B23B27/141 ,  B23B2226/125 ,  B82Y30/00 ,  C04B35/52 ,  C04B35/5831 ,  C04B35/645 ,  C04B2235/421 ,  C04B2235/425 ,  C04B2235/427 ,  C04B2235/5436 ,  C04B2235/5445 ,  C04B2235/6567 ,  C04B2235/666 ,  C04B2235/781 ,  C04B2235/782 ,  C04B2235/785 ,  C04B2235/81 ,  C04B2235/87 ,  Y10T407/26 ,  Y10T407/27

摘要： The present invention provides a cutting tool that achieves cutting with high precision. The cutting tool of the present invention includes a cutting edge composed of a polycrystalline body including high-pressure-phase hard grains that contain one or more elements selected from the group consisting of boron, carbon, and nitrogen, the polycrystalline body being formed by subjecting a non-diamond carbon material and/or boron nitride, serving as a starting material, to direct conversion sintering under ultra-high pressure and high temperature without adding a sintering aid or a catalyst, in which letting the radius of curvature of the nose of the cutting edge of the cutting tool be R1, the sintered grains constituting the polycrystalline body have an average grain size of 1.2×R1 or less and a maximum grain size of 2×R1 or less.

摘要翻译： 本发明提供一种以高精度实现切割的切削工具。 本发明的切削工具包括由包含高压相硬质粒子的多晶体构成的切削刃，所述高压相硬质粒子含有选自硼，碳和氮的一种以上的元素，所述多晶体通过 作为起始原料的非金刚石碳材料和/或氮化硼，在超高压和高温下直接转化烧结，而不添加烧结助剂或催化剂，其中使得鼻子的曲率半径 切削刀具的切削刃为R1，构成多晶体的烧结晶粒的平均粒径为1.2×R1以下，最大粒径为2×R1以下。