公开(公告)号：US4324356A

公开(公告)日：1982-04-13

申请号：US25148

申请日：1979-03-29

申请人： Howard D. Blair ,  Morton E. Milberg

发明人： Howard D. Blair ,  Morton E. Milberg

IPC分类号： B23K35/28 ,  C04B37/00 ,  B23K31/00 ,  B23K35/24 ,  B23K35/38

CPC分类号： C04B35/645 ,  B23K35/286 ,  C04B37/006 ,  C04B2237/121 ,  C04B2237/126 ,  C04B2237/368 ,  C04B2237/54 ,  C04B2237/708 ,  Y10T29/49321

摘要： A method of joining silicon nitride based ceramic bodies is disclosed. At least one interfacing surface of shaped bodies (one or both of which may be hot-pressed or reaction-sintered) receives a layer of metallic aluminum based material. The bodies with the metallic aluminum based material therebetween are subjected to heating at 1400.degree.1900.degree. C. for a period typically 0.5-2 hours in a nitriding atmosphere to effect a chemical bond consisting of a conversion of the interfacing ceramic to a Si--Al--O--N system.

摘要翻译： 公开了一种连接氮化硅基陶瓷体的方法。 成型体（其中一个或两个可以被热压或反应烧结）的至少一个接合表面接收一层金属铝基材料。 具有金属铝基材料的物体在氮化气氛中在1400°1900℃下加热典型为0.5-2小时，以实现由界面陶瓷转化为Si-Al的化学键 -ON系统

公开(公告)号：US4071371A

公开(公告)日：1978-01-31

申请号：US556030

申请日：1975-03-06

申请人： Morton E. Milberg ,  Wayne M. Miller

发明人： Morton E. Milberg ,  Wayne M. Miller

IPC分类号： C04B35/597 ,  C04B35/58

CPC分类号： C04B35/597 ,  Y10T407/27

摘要： A method of making improved SIALON ceramics without the need for hot pressing, is disclosed. A homogeneous slip is prepared from Si.sub.3 N.sub.4, Al.sub.2 O.sub.3 and Y.sub.2 O.sub.3 in the presence of a suspension agent; Y.sub.2 O.sub.3 being present in at least 1% by weight (preferably between 1-25%) and Al.sub.2 O.sub.3 being present in the range 16-40% by weight (preferably 16-18%). The slip is cast and dehydrated. The cast shape is reaction sintered at about 1550.degree.-1700.degree. C (preferably 1600.degree. C) for no less than 3 hours (preferably between 3-12 hours).

摘要翻译： 公开了一种制备改进的SIALON陶瓷而不需要热压的方法。 在悬浮剂存在下，由Si 3 N 4，Al 2 O 3和Y 2 O 3制备均匀的滑移剂; Y 2 O 3以至少1重量％（优选1-25％）和Al 2 O 3以16-40重量％（优选16-18重量％）存在。 滑脱被浇铸和脱水。 铸造形状在约1550℃-1700℃（优选1600℃）下反应烧结不少于3小时（优选3-12小时）。

公开(公告)号：US4866014A

公开(公告)日：1989-09-12

申请号：US037654

申请日：1987-04-13

申请人： Donald J. Cassidy ,  Roy L. Van Alsten ,  Morton E. Milberg

发明人： Donald J. Cassidy ,  Roy L. Van Alsten ,  Morton E. Milberg

IPC分类号： C04B41/80 ,  C04B35/48 ,  C04B35/486

CPC分类号： C04B35/486

摘要： A method is disclosed for making an aging-resistant, partially stabilized zirconia ceramic, which method is not totally dependent upon grain size control, can function to eliminate substantially any monoclinic phase that results from machining such zirconia article, and employs a novel heat treatment to do so.The method particularly comprises: (a) sintering such article at a temperature and for a period of time to produce a densified product having little or no monoclinic crystal phase when cooled to room temperature (i.e. 2550.degree.-2650.degree. F. for 0.5-4 hours); (b) subjecting the cooled sintered article a machining operation that results in the formation of monoclinic crystal phase on the surface of the part; and (c) heating said treated article to the temperature range of 1800.degree.-1950.degree. F. (982.degree.-1066.degree. C.) to re-transform monoclinic crystal structure to tetragonal crystal.