公开(公告)号：US20020039959A1

公开(公告)日：2002-04-04

申请号：US09969443

申请日：2001-10-02

申请人： C-Max Technology, Inc.

发明人： Xi Yang

IPC分类号： C04B035/10 ,  C04B035/565 ,  C04B035/56

CPC分类号： C04B35/803 ,  B24C5/04 ,  C04B35/117 ,  C04B35/64 ,  C04B41/52 ,  F27D1/0006 ,  F27D1/16 ,  F27D3/16

摘要： The present invention provides a process for producing alumina matrix carbide and boride reinforced ceramic composites wherein for any particular composite, the relative density is about 97% or more of the theoretical density. The composites are prepared in a container wherein the interior surfaces of the container are graphite and have a protective coating consisting of a first layer comprising silicon carbide and boron carbide with a binder and a second layer comprising silicon carbide particles, wherein the protective coating prevents carbon bleed-through and the protective coating maintains a boride-containing equilibrium atmosphere during the process. The present invention further provides an alumina-based ceramic composite which comprises a metal carbide preferably selected from the group consisting of silicon carbide, titanium carbide and zirconium carbide, and mixtures thereof, and a boride preferably selected from the group consisting of boron carbide, titanium boride, or zirconium boride, and mixtures thereof. Finally, the present invention provides a protective coating for a surface comprising a first layer of a silicon carbide and a boron carbide in a binder and a second layer comprising a silicon carbide wherein the protective coating is able to withstand repeated exposure to high temperature.

公开(公告)号：US20020037800A1

公开(公告)日：2002-03-28

申请号：US09969468

申请日：2001-10-02

申请人： C-Max Technology, Inc.

发明人： Xi Yang

IPC分类号： C04B035/56 ,  C04B035/565

CPC分类号： C04B35/803 ,  B24C5/04 ,  C04B35/117 ,  C04B35/64 ,  C04B41/52 ,  F27D1/0006 ,  F27D1/16 ,  F27D3/16

摘要： The present invention provides a process for producing alumina matrix carbide and boride reinforced ceramic composites wherein for any particular composite, the relative density is about 97% or more of the theoretical density. The composites are prepared in a container wherein the interior surfaces of the container are graphite and have a protective coating consisting of a first layer comprising silicon carbide and boron carbide with a binder and a second layer comprising silicon carbide particles, wherein the protective coating prevents carbon bleed-through and the protective coating maintains a boride-containing equilibrium atmosphere during the process. The present invention further provides an alumina-based ceramic composite which comprises a metal carbide preferably selected from the group consisting of silicon carbide, titanium carbide and zirconium carbide, and mixtures thereof, and a boride preferably selected from the group consisting of boron carbide, titanium boride, or zirconium boride, and mixtures thereof. Finally, the present invention provides a protective coating for a surface comprising a first layer of a silicon carbide and a boron carbide in a binder and a second layer comprising a silicon carbide wherein the protective coating is able to withstand repeated exposure to high temperature.

摘要翻译： 本发明提供一种生产氧化铝基质碳化物和硼化物增强陶瓷复合材料的方法，其中对于任何特定的复合材料，相对密度为理论密度的约97％或更高。 复合材料制备在容器中，其中容器的内表面是石墨，并且具有由包含碳化硅和碳化硼与粘合剂的第一层组成的保护涂层和包含碳化硅颗粒的第二层，其中保护涂层防止碳 渗透和保护涂层在该过程中保持含硼化物的平衡气氛。 本发明还提供了一种氧化铝基陶瓷复合材料，其包含优选选自碳化硅，碳化钛和碳化锆的金属碳化物及其混合物，硼化物优选选自碳化硼，钛 硼化物或硼化锆，及其混合物。 最后，本发明提供了一种用于表面的保护涂层，其包括粘合剂中的碳化硅第一层和碳化硼，以及包含碳化硅的第二层，其中保护涂层能够经受反复暴露于高温。

公开(公告)号：US20020195752A1

公开(公告)日：2002-12-26

申请号：US10202337

申请日：2002-07-24

申请人： C-Max Technology, Inc.

发明人： Xi Yang

IPC分类号： C04B033/32

CPC分类号： C04B35/803 ,  B24C5/04 ,  C04B35/117 ,  C04B35/64 ,  C04B41/52 ,  F27D1/0006 ,  F27D1/16 ,  F27D3/16

摘要： The present invention provides a process for producing alumina matrix carbide and boride reinforced ceramic composites wherein for any particular composite, the relative density is about 97% or more of the theoretical density. The composites are prepared in a container wherein the interior surfaces of the container are graphite and have a protective coating consisting of a first layer comprising silicon carbide and boron carbide with a binder and a second layer comprising silicon carbide particles, wherein the protective coating prevents carbon bleed-through and the protective coating maintains a boride-containing equilibrium atmosphere during the process. The present invention further provides an alumina-based ceramic composite which comprises a metal carbide preferably selected from the group consisting of silicon carbide, titanium carbide and zirconium carbide, and mixtures thereof, and a boride preferably selected from the group consisting of boron carbide, titanium boride, or zirconium boride, and mixtures thereof. Finally, the present invention provides a protective coating for a surface comprising a first layer of a silicon carbide and a boron carbide in a binder and a second layer comprising a silicon carbide wherein the protective coating is able to withstand repeated exposure to high temperature.

公开(公告)号：US20030008761A1

公开(公告)日：2003-01-09

申请号：US10202984

申请日：2002-07-24

申请人： C-Max Technology, Inc.

发明人： Xi Yang

IPC分类号： C04B035/563 ,  C04B035/565 ,  C04B035/103 ,  C04B035/10

CPC分类号： C04B35/803 ,  B24C5/04 ,  C04B35/117 ,  C04B35/64 ,  C04B41/52 ,  F27D1/0006 ,  F27D1/16 ,  F27D3/16

摘要： The present invention provides a process for producing alumina matrix carbide and boride reinforced ceramic composites wherein for any particular composite, the relative density is about 97% or more of the theoretical density. The composites are prepared in a container wherein the interior surfaces of the container are graphite and have a protective coating consisting of a first layer comprising silicon carbide and boron carbide with a binder and a second layer comprising silicon carbide particles, wherein the protective coating prevents carbon bleed-through and the protective coating maintains a boride-containing equilibrium atmosphere during the process. The present invention further provides an alumina-based ceramic composite which comprises a metal carbide preferably selected from the group consisting of silicon carbide, titanium carbide and zirconium carbide, and mixtures thereof, and a boride preferably selected from the group consisting of boron carbide, titanium boride, or zirconium boride, and mixtures thereof. Finally, the present invention provides a protective coating for a surface comprising a first layer of a silicon carbide and a boron carbide in a binder and a second layer comprising a silicon carbide wherein the protective coating is able to withstand repeated exposure to high temperature.