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1. 发明授权

US5980982A Coated particles for synthesizing diamond and process for production of diamond abrasive for sawing 失效
标题翻译：用于合成金刚石的涂层颗粒和用于锯切的金刚石磨料的生产工艺
公开(公告)号：US5980982A
公开(公告)日：1999-11-09
申请号：US629516
申请日：1996-04-09
申请人： Junji Degawa , Kazuwo Tsuji , Akifumi Fujioka , Yasushi Goda
发明人： Junji Degawa , Kazuwo Tsuji , Akifumi Fujioka , Yasushi Goda
IPC分类号： B01J2/00 , B01J3/06 , C30B29/04
CPC分类号： B01J3/062 , B01J2203/061 , B01J2203/062 , B01J2203/0655 , B01J2203/068
摘要： A coated particle for synthesizing diamond includes: a single crystal of a fine diamond particle coated with at least one layer which contains at least one kind of solvent metal powder for synthesizing diamond and/or at least one kind of solvent metal powder with organic bonding material. Diamond abrasive particles for sawing are produced by a process which includes the steps of: coating fine diamond particles with at least one layer which contains at least one kind of solvent metal powder for synthesizing diamond and/or at least one kind of solvent metal powder with organic bonding material, filling a molding with the coated fine diamond particles, compacting, arranging a compact in a synthesizing vessel, heating the compact to a temperature above a solvent metal-graphite melting point under a pressure condition in which diamond is thermodynamically stable, and recovering the diamond abrasive particles.
摘要翻译：用于合成金刚石的涂覆颗粒包括：涂覆有至少一层的细金刚石颗粒的单晶，其包含至少一种用于合成金刚石的溶剂金属粉末和/或至少一种溶剂金属粉末与有机粘合材料。用于锯切的金刚石磨料颗粒通过包括以下步骤的方法生产：包括至少一层的精细金刚石颗粒，所述至少一层包含至少一种用于合成金刚石和/或至少一种溶剂金属粉末的溶剂金属粉末，有机粘合材料，用涂覆的金刚石颗粒填充模塑件，压实，在合成容器中设置压块，在金刚石热力学稳定的压力条件下将压块加热至高于溶剂金属 - 石墨熔点的温度，以及回收金刚石磨料颗粒。

2. 发明授权

US5372799A Process for the synthesis of granular diamond 失效
标题翻译：粒状金刚石合成工艺
公开(公告)号：US5372799A
公开(公告)日：1994-12-13
申请号：US425833
申请日：1989-10-20
申请人： Tadafumi Adschiri , Junji Degawa , Takahiro Imai , Naoji Fujimori , Takehiko Furusawa, deceased
发明人： Tadafumi Adschiri , Junji Degawa , Takahiro Imai , Naoji Fujimori , Takehiko Furusawa, deceased
IPC分类号： C01B31/06 , B01J8/42 , C23C16/442 , C30B25/00 , C30B29/04 , C23C16/26 , C23C16/54
CPC分类号： C23C16/442 , B01J8/42 , C30B25/00 , C30B29/04 , B01J2219/0894
摘要： Granular diamond suitable for use as an abrasive grain for polishing is synthesized from gaseous phase by a process for the synthesis of granular diamond, comprising subjecting a mixed gas containing an organic compound and hydrogen to a treatment to form plasma and depositing diamond on substrate grains dispersed and fluidized in the resulting plasma space, characterized in that the substrate grains are dispersed and fluidized by the mixed gas fed at a flow rate of at least the terminal velocity of the grains and an AC or DC electric field is applied to a zone whose grain concentration in the space is in the range of 1 to 20% by volume.
摘要翻译：适合用作研磨磨粒的颗粒状金刚石是通过合成粒状金刚石的方法由气相合成的，包括使含有有机化合物和氢气的混合气体进行处理以形成等离子体并将金刚石沉积在分散的基质颗粒上并在所得到的等离子体空间中流化，其特征在于，通过以至少晶粒的末端速度的流量供给的混合气体使基板颗粒分散和流化，并且将AC或DC电场施加到其颗粒该空间中的浓度在1〜20体积％的范围内。

3. 发明授权

US5011790A Method of manufacturing cubic boron nitride p-n junction body 失效
标题翻译：制造立方氮化硼p-n结体的方法
公开(公告)号：US5011790A
公开(公告)日：1991-04-30
申请号：US317946
申请日：1989-03-02
申请人： Junji Degawa , Kazuwo Tsuji
发明人： Junji Degawa , Kazuwo Tsuji
IPC分类号： B01J3/06 , C30B29/38 , H01L29/20
CPC分类号： H01L29/20 , Y10S438/932
摘要： In a method of manufacturing a cubic boron nitride p-n junction body, cBN seed crystals (1) of a first conductivity type are made coexist with original BN (3) and a solvent (2) containing a doping material of a second conductivity type, to grow cBN of the second conductivity type from the seed crystals (1). The solvent (2) contains 0.1 to 5 percent by weight of the doping material. The seed crystals (1) are disposed one by one in a plurality of blocks of the solvent (2), which blocks are separated from each other, to be in contact with nothing but the solvent (2). Due to such disposal, no spontaneous nucleation is caused in portions other than the seed crystals (1). A large-grained cBN p-n junction body is obtained as the result.

4. 发明授权

US4699687A Method of synthesizing cubic system boron nitride 失效
标题翻译：合成立方氮化硼的方法
公开(公告)号：US4699687A
公开(公告)日：1987-10-13
申请号：US909263
申请日：1986-09-19
申请人： Shuji Yazu , Hitoshi Sumiya , Junji Degawa
发明人： Shuji Yazu , Hitoshi Sumiya , Junji Degawa
IPC分类号： B01J3/06 , C30B9/00 , C30B29/38
CPC分类号： C30B9/00 , B01J3/062 , C30B29/403 , B01J2203/061 , B01J2203/0645 , B01J2203/0655 , B01J2203/066 , B01J2203/068 , Y10S117/90 , Y10T117/1096
摘要： Cubic system boron nitride crystals are synthesized by using a synthesizing vessel separated into a plurality of synthesizing chambers by one or more partition layers. After preparing the synthesizing vessel it is heated under extra-high pressure to achieve a required temperature gradient from chamber to chamber. A plurality of solvents having different eutectic temperatures with respect to boron nitride (BN) sources are placed in the chambers according to the temperature gradient. The BN sources are placed in contact with solvent portions heated to relatively high temperatures. At least one seed crystal is placed in each solvent portion heated to relatively low temperatures. At least one cubic system boron nitride crystal is grown in each of the solvents in the chambers by the above heating of the synthesizing vessel under conditions of ultra-high pressure and temperatures assuring the required temperature gradient.
摘要翻译：通过使用通过一个或多个分隔层分离成多个合成室的合成容器来合成立方体系的氮化硼晶体。在制备合成容器之后，在超高压下加热以达到从室到室所需的温度梯度。根据温度梯度，将多个相对于氮化硼（BN）源的共晶温度的溶剂放置在室中。 BN源与被加热到较高温度的溶剂部分接触。在加热到较低温度的每个溶剂部分中放置至少一种晶种。在超高压和温度条件下，通过合成容器的上述加热，在室内的每种溶剂中生长至少一种立方晶系氮化硼晶体，以确保所需的温度梯度。

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