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11. 发明授权

US4852999A Cutting tool 失效
标题翻译：切割用具
公开(公告)号：US4852999A
公开(公告)日：1989-08-01
申请号：US056091
申请日：1987-05-28
申请人： Pankaj K. Mehrotra , Elizabeth R. Billman , Bernard North
发明人： Pankaj K. Mehrotra , Elizabeth R. Billman , Bernard North
IPC分类号： B24D3/02 , B24D3/06 , C04B35/10 , C04B35/111 , C04B35/80
CPC分类号： B24D3/06 , C04B35/111 , C04B35/803
摘要： A ceramic composition comprising a polycrystalline alumina matrix having titanium carbide whiskers distributed therein. The composition comprises 50 to 90 volume percent high purity alumina, 10 to 50 volume percent single crystal titanium carbide whiskers, and up to 3 volume percent being the residue of sintering aids.
摘要翻译：一种陶瓷组合物，其包含分布在其中的具有碳化钛晶须的多晶氧化铝基体。该组合物包含50至90体积％的高纯度氧化铝，10至50体积％的单晶碳化钛晶须，和至多3体积％的烧结助剂残留物。

12. 发明授权

US4711644A Ceramic material and method of manufacture 失效
标题翻译：陶瓷材料及其制造方法
公开(公告)号：US4711644A
公开(公告)日：1987-12-08
申请号：US926849
申请日：1986-11-03
申请人： Russel L. Yeckley , Bernard North
发明人： Russel L. Yeckley , Bernard North
IPC分类号： C04B35/597 , C04B35/58
CPC分类号： C04B35/597
摘要： A dual phase silicon aluminum oxynitride material comprising a first phase Si-Al-O-N, commonly referred to as .beta.--Si--Al--O--N, and a second phase Si-Al-O-N referred to as .alpha.--Si--Al--O--N. In addition to the double phase Si-Al-O-Ns, there is included a glassy type material which can formulate up to ten percent by weight of the total composition. The material may be manufactured by forming a polytype material made from reacted alumina, aluminum nitride and silicon nitride. The polytype material may be mixed with further powders of silicon nitride and an oxide of yttrium, lithium or calcium and finally reacted to a double phase Si-Al-O-N material where hardness is increased by the additional .alpha.-Si-Al-O-N is increased significantly affecting its strength.The material may be formed in situ by mixing aluminum nitride, alumina, silicon nitride, together with an oxide of yttrium, lithium or calcium. These materials can then be sintered to a final product containing a double phase Si-Al-O-N. Control of the alumina content in the polytype or in situ methods affects the percentage of .alpha.-Si-Al-O-N produced in the final product. The hardness of the material increases with the .alpha.-Si-Al-O-N content without significantly affecting its transverse rupture strength.
摘要翻译：包括通常称为β-Si-Al-O-N的第一相Si-Al-O-N和称为α-Si-Al-O-N的第二相Si-Al-O-N的双相硅铝氧氮化物材料。除了双相Si-Al-O-N之外，还包括一种玻璃状材料，其可以配制成总组合物的10重量％。该材料可以通过形成由反应的氧化铝，氮化铝和氮化硅制成的多型材制造。多型材料可以与氮化硅和钇，锂或钙的氧化物的另外的粉末混合，并最终与双相Si-Al-ON材料反应，其中硬度通过额外的α-Si-Al-ON增加而增加显着影响其实力。材料可以通过将氮化铝，氧化铝，氮化硅与钇，锂或钙的氧化物一起混合而原位形成。然后将这些材料烧结成含有双相Si-Al-O-N的最终产品。控制聚合物或原位方法中的氧化铝含量会影响最终产品中产生的α-Si-Al-O-N的百分比。材料的硬度随着α-Al-O-N含量的增加而不会明显影响其横向断裂强度。

13. 发明授权

US06575671B1 Chromium-containing cemented tungsten carbide body 有权
标题翻译：含铬粘结碳化钨体
公开(公告)号：US06575671B1
公开(公告)日：2003-06-10
申请号：US09637280
申请日：2000-08-11
申请人： Bernard North , Prem C. Jindal
发明人： Bernard North , Prem C. Jindal
IPC分类号： B23B2714
CPC分类号： C23C30/005 , B22F2005/001 , C22C29/08 , Y10T407/26 , Y10T407/27 , Y10T428/25
摘要： A chromium-containing coated cemented tungsten carbide cutting insert that has a substrate and a coating. The substrate comprises between about 10.4 and about 12.7 weight percent cobalt, between about 0.2 and about 1.2 weight percent chromium.
摘要翻译：一种含铬涂层的硬质合金切削刀片，其具有基体和涂层。基材包含约10.4至约12.7重量％的钴，约0.2至约1.2重量％的铬。

14. 发明授权

US5752155A Green honed cutting insert and method of making the same 失效
标题翻译：绿色切削刀片及其制作方法
公开(公告)号：US5752155A
公开(公告)日：1998-05-12
申请号：US734511
申请日：1996-10-21
申请人： Alfred S. Gates, Jr. , Bernard North , William R. Shaffer
发明人： Alfred S. Gates, Jr. , Bernard North , William R. Shaffer
IPC分类号： B23B27/14 , B22F3/16 , B22F7/00 , B23B27/16 , B23P15/28 , C22C1/05 , C23C30/00 , B22F3/12 , B22F3/24 , B22F7/06 , B22F7/08
CPC分类号： C22C1/051 , B22F3/16 , C23C30/005
摘要： A method of producing a cutting insert which includes the steps of: providing a generally homogeneous powder blend of powder components; forming the powder blend into a green body wherein the green body includes a rake face and a flank face with a cutting edge at the juncture of the rake face and the flank face; honing the cutting edge of the green body; and consolidating the green body with the honed cutting edge so as to form a consolidated body with a honed cutting edge.
摘要翻译：一种生产切削刀片的方法，包括以下步骤：提供粉末组分的大致均匀的粉末混合物; 将所述粉末混合物形成生坯，其中所述生坯包括前刀面和在所述前刀面和所述侧面的接合处具有切削刃的侧面; 珩磨绿色的前沿; 并用生硬的切削刃将生坯整合，形成具有珩磨切削刃的固结体。

15. 发明授权

US5397370A Cutting tool 失效
标题翻译：切割用具
公开(公告)号：US5397370A
公开(公告)日：1995-03-14
申请号：US505951
申请日：1990-04-06
申请人： Pankaj K. Mehrotra , Elizabeth R. Billman , Bernard North
发明人： Pankaj K. Mehrotra , Elizabeth R. Billman , Bernard North
IPC分类号： B24D3/06 , C04B35/111 , C04B35/80 , C04B35/52
CPC分类号： B24D3/06 , C04B35/111 , C04B35/803 , Y10T407/27
摘要： A ceramic composition comprising a polycrystalline alumina matrix having titanium carbide whiskers distributed therein. The composition comprises 50 to 90 volume percent high purity alumina, 10 to 50 volume percent single crystal titanium carbide whiskers, and up to 3 volume percent being the residue of sintering aids.
摘要翻译：一种陶瓷组合物，其包含分布在其中的具有碳化钛晶须的多晶氧化铝基体。该组合物包含50至90体积％的高纯度氧化铝，10至50体积％的单晶碳化钛晶须，和至多3体积％的烧结助剂残留物。

16. 发明授权

US4563433A Ceramic material and method of manufacture 失效
标题翻译：陶瓷材料及其制造方法
公开(公告)号：US4563433A
公开(公告)日：1986-01-07
申请号：US466716
申请日：1983-02-15
申请人： Russell L. Yeckley , Bernard North
发明人： Russell L. Yeckley , Bernard North
IPC分类号： C04B35/597 , C04B35/58
CPC分类号： C04B35/597
摘要： A dual phase silicon aluminum oxynitride material comprising a first phase Si-Al-O-N, commonly referred to as .beta.-Si-Al-O-N, and a second phase Si-Al-O-N referred to as .alpha.-Si-Al-O-N. In addition to the double phase Si-Al-O-Ns, there is included a glassy type material which can formulate up to ten percent by weight of the total composition. The material may be manufactured by forming a polytype material made from reacted alumina, aluminum nitride and silicon nitride. The polytype material may be mixed with further powders of silicon nitride and an oxide of yttrium, lithium or calcium and finally reacted to a double phase Si-Al-O-N material where hardness is increased as the additional .alpha.-Si-Al-O-N is increased without significantly affecting its strength.The material may be formed in situ by mixing aluminum nitride, alumina, silicon nitride, together with an oxide of yttrium, lithium or calcium. These materials can then be sintered to a final product containing a double phase Si-Al-O-N. Control of the alumina content in the polytype or in situ methods affects the percentage of .alpha.-Si-Al-O-N produced in the final product. The hardness of the material increases with the .alpha.-Si-Al-O-N content without significantly affecting its transverse rupture strength.
摘要翻译：包括通常称为β-Si-Al-O-N的第一相Si-Al-O-N和称为α-Si-Al-O-N的第二相Si-Al-O-N的双相硅铝氧氮化物材料。除了双相Si-Al-O-N之外，还包括一种玻璃状材料，其可以配制成总组合物的10重量％。该材料可以通过形成由反应的氧化铝，氮化铝和氮化硅制成的多型材制造。多型材料可以与另外的氮化硅粉末和钇，锂或钙的氧化物混合，并最终与另外的α-Al-ON增加硬度的双相Si-Al-ON材料反应没有显着影响其实力。材料可以通过将氮化铝，氧化铝，氮化硅与钇，锂或钙的氧化物一起混合而原位形成。然后将这些材料烧结成含有双相Si-Al-O-N的最终产品。控制聚合物或原位方法中的氧化铝含量会影响最终产品中产生的α-Si-Al-O-N的百分比。材料的硬度随着α-Al-O-N含量的增加而不会明显影响其横向断裂强度。

17. 发明授权

US4113503A Method of forming a ceramic product 失效
标题翻译：形成陶瓷产品的方法
公开(公告)号：US4113503A
公开(公告)日：1978-09-12
申请号：US802172
申请日：1977-05-31
申请人： Roland John Lumby , Bernard North , Alfred James Taylor
发明人： Roland John Lumby , Bernard North , Alfred James Taylor
IPC分类号： C04B35/599 , C04B35/597 , C04B35/58
CPC分类号： C04B35/597 , Y10T407/27
摘要： In a method of forming a ceramic material of the kind including at least 90% by weight of a single phase silicon aluminium oxynitride which has a crystal structure based on .beta. silicon nitride but of increased unit cell dimensions and which obeys the general formula:Si.sub.6-z Al.sub.z N.sub.8-z O.sub.zwhere z is greater than 0 and less than or equal to 5, a ceramic intermediary is produced which contains a silicon aluminium oxynitride which obeys a different formula from said general formula. The intermediary is then heated in powder form at a temperature between 1200.degree. C and 2000.degree. C in a protective environment with at least one compound containing two or more of the elements silicon, aluminium, oxygen and nitrogen, the composition of said intermediary and the amount of said at least one compound being such that said intermediary is converted at said temperature into said ceramic material.

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