-
1.发明公开
公开(公告)号：EP1706365A1
公开(公告)日：2006-10-04
申请号：EP05701470.6
申请日：2005-01-10
发明人： KRELL, Andreas , BLANK, Paul , KLIMKE, Jens , HUTZLER, Thomas
IPC分类号： C04B35/115 , C04B35/10
CPC分类号： C04B35/6455 , C04B35/115 , C04B35/6261 , C04B35/62625 , C04B35/6263 , C04B35/63424 , C04B35/63444 , C04B35/64 , C04B2235/3208 , C04B2235/3217 , C04B2235/3222 , C04B2235/3232 , C04B2235/3239 , C04B2235/3241 , C04B2235/327 , C04B2235/3272 , C04B2235/3275 , C04B2235/3279 , C04B2235/5445 , C04B2235/6587 , C04B2235/661 , C04B2235/662 , C04B2235/665 , C04B2235/666 , C04B2235/667 , C04B2235/77 , C04B2235/785 , C04B2235/80 , C04B2235/94 , C04B2235/96 , C04B2235/9661
摘要： The invention relates to the field of ceramics, more specifically to a corundum material that is suitable for imitating colored corundum gems (rubies and sapphires) due to the optical properties thereof, and a method for producing molded objects from said material. The aim of the invention is to develop a corundum material that is provided with a corundum grain size which is as small as possible and a chromophoric dopant distribution which is as homogeneous as possible. Said aim is achieved by a colored transparent corundum material which is made of a polycrystalline sub-µm structure having an average particle size of
-
2.发明授权
公开(公告)号：EP1706365B1
公开(公告)日：2007-12-19
申请号：EP05701470.6
申请日：2005-01-10
发明人： KRELL, Andreas , BLANK, Paul , KLIMKE, Jens , HUTZLER, Thomas
IPC分类号： C04B35/115 , C04B35/10
CPC分类号： C04B35/6455 , C04B35/115 , C04B35/6261 , C04B35/62625 , C04B35/6263 , C04B35/63424 , C04B35/63444 , C04B35/64 , C04B2235/3208 , C04B2235/3217 , C04B2235/3222 , C04B2235/3232 , C04B2235/3239 , C04B2235/3241 , C04B2235/327 , C04B2235/3272 , C04B2235/3275 , C04B2235/3279 , C04B2235/5445 , C04B2235/6587 , C04B2235/661 , C04B2235/662 , C04B2235/665 , C04B2235/666 , C04B2235/667 , C04B2235/77 , C04B2235/785 , C04B2235/80 , C04B2235/94 , C04B2235/96 , C04B2235/9661
摘要： The invention relates to the field of ceramics, more specifically to a corundum material that is suitable for imitating colored corundum gems (rubies and sapphires) due to the optical properties thereof, and a method for producing molded objects from said material. The aim of the invention is to develop a corundum material that is provided with a corundum grain size which is as small as possible and a chromophoric dopant distribution which is as homogeneous as possible. Said aim is achieved by a colored transparent corundum material which is made of a polycrystalline sub-µm structure having an average particle size of
-
3.发明公开HARTSTOFFVERSTÄRKTE Al 2?O 3?-SINTERKERAMIKEN UND VERFAHREN ZU DEREN HERSTELLUNG 失效HARTSTOFFVERSTÄRKTEAl 2？O 3？-SINTERKERAMIKEN UND VERFAHREN ZU DEREN HERSTELLUNG
公开(公告)号：EP0952968A1
公开(公告)日：1999-11-03
申请号：EP97950119.0
申请日：1997-11-06
CPC分类号： C04B35/117 , B23B27/148 , C04B35/119
摘要： The invention pertains to the field of ceramics and relates to dense Al2O3 sinter ceramics with reinforced hard material of the Al2O3/TiCxNyOz type, such as those that can be used as wear-resisting parts. The aim of the invention is to provide Al2O3 sinter ceramics with reinforced hard material having a submicrometer structure in each individual phase. To this end, the structures of said Al2O3 sinter ceramics with reinforced hard material contain a corundum matrix with 0-15 vol. % ZrO2 and 0-15- vol. % of a hard material phase based on titanium TiCxNyOz with a) an oxygen content of z > 0.10 or b) an oxygen content of z ≥ 0.05 and an evident substoichiometry of (x+y+z) ≤ 0.95 of the hard material phase, wherein the mean grain size in each individual phase in the structures is smaller than 1 νm and the structures can exhibit a high Vickers hardness of HV10 ≥ 2,100. Disclosed is also a method whereby the powder starting materials are crushed and mixed together in a liquid medium.
摘要翻译： 本发明属于陶瓷领域，涉及Al2O3 / TiCxNyOz型增强硬质材料如可用作耐磨部件的致密Al2O3烧结陶瓷。 本发明的目的是为Al2O3烧结陶瓷提供在每个单独相中具有亚微米结构的增强硬质材料。 为此，所述具有增强硬质材料的Al2O3烧结陶瓷的结构包含0-15vol。％的刚玉基质。 ％ZrO2和0-15vol。 ％的基于钛TiC x N y O z的硬质材料相，其中a）氧含量z> 0.10或b）氧含量z≥0.05且明显的亚化学计量比（x + y + z）≤0.95为硬质材料相， 其中结构中每个单独相中的平均晶粒尺寸小于1μm，并且该结构可以表现出HV10≥2,100的高维氏硬度。 还公开了一种方法，由此粉末起始材料在液体介质中粉碎并混合在一起。
-
4.发明授权AL2O3-SINTERMATERIAL, VERFAHREN ZU SEINER HERSTELLUNG UND VERWENDUNG DES MATERIALS 失效氧化铝，烧结材料，方法为生产和使用的材料
公开(公告)号：EP0756586B1
公开(公告)日：1997-10-29
申请号：EP95918570.3
申请日：1995-04-19
发明人： KRELL, Andreas , BLANK, Paul
IPC分类号： C04B35/111
CPC分类号： A61L27/105 , A61F2310/00203 , C04B35/111
摘要： The invention relates to ceramics and concerns Al2O3 sintering materials made from corundum powder, a process for the production of the said materials and their use as, for example, human implants or as a material for tools. According to the invention, high-grade, low-defect Al2O3 sintering materials with very high degrees of hardness or high degrees of hardness and strength are produced containing 95-100 vol.% Al2O3 and a Vickers micro hardness of » 2000 at a test load of 10-100 N; these sintering materials have a relative sinter density δ » 98.5 %, grain structure with a mean grain size of « 1.5 νm and inhomogeneities which occur with a frequency of
-
5.发明公开AL 2?O 3?-SINTERMATERIAL, VERFAHREN ZU SEINER HERSTELLUNG UND VERWENDUNG DES MATERIALS 失效AL 2？O3？烧结材料，用于生产和材料的使用
公开(公告)号：EP0756586A1
公开(公告)日：1997-02-05
申请号：EP95918570.0
申请日：1995-04-19
发明人： KRELL, Andreas , BLANK, Paul
CPC分类号： A61L27/105 , A61F2310/00203 , C04B35/111
摘要： The invention relates to ceramics and concerns Al2O3 sintering materials made from corundum powder, a process for the production of the said materials and their use as, for example, human implants or as a material for tools. According to the invention, high-grade, low-defect Al2O3 sintering materials with very high degrees of hardness or high degrees of hardness and strength are produced containing 95-100 vol.% Al2O3 and a Vickers micro hardness of » 2000 at a test load of 10-100 N; these sintering materials have a relative sinter density δ » 98.5 %, grain structure with a mean grain size of « 1.5 νm and inhomogeneities which occur with a frequency of
-
-
-
-
搜索结果
5 条记录 (耗时 0.02 秒)
