公开(公告)号：EP0256963A3

公开(公告)日：1988-08-17

申请号：EP87630133

申请日：1987-07-28

Applicant: LANXIDE TECHNOLOGY COMPANY, LP.

Inventor： Newkirk, Marc S. ,  Urquhart, Andrew W. ,  Zwicker, Harry R.

IPC: C23C10/22 ,  C04B35/65 ,  C22C29/12 ,  C04B41/88

CPC classification number: C04B41/009 ,  B22F2999/00 ,  C04B35/652 ,  C04B41/51 ,  C04B41/88 ,  C22C1/1015 ,  C22C1/1036 ,  C22C29/12 ,  C22C47/06 ,  C22C2001/1057 ,  C23C10/22 ,  Y10S264/36 ,  Y10T428/12007 ,  Y10T428/12056 ,  Y10T428/12146 ,  Y10T428/12167 ,  Y10T428/12583 ,  C04B41/4505 ,  C04B35/00 ,  C04B35/65 ,  B22F2202/01

Abstract: A method of producing self-supporting ceramic bo­dies (10) having a modified metal-containing component in­cludes first providing a self-supporting ceramic body (10) comprising (i) a polycrystalline oxidation reaction pro­duct (12) formed upon oxidation of a molten parent metal precursor with an oxidant, and (ii) an interconnected metal-­containing component (14) at least partially accessible from one or more surfaces (15) of said ceramic body (10). The surface or surfaces (15) of the ceramic body (10) is contacted with a quantity of foreign metal different from said interconnected metal-containing component (14) at a temperature and for a time sufficient to allow for inter­diffusion, whereby at least a portion of said metal-con­taining component (14) is displaced by said foreign metal. The resulting ceramic body, having an altered metal-con­taining component, exhibits modified or improved pro­perties.

公开(公告)号：EP0245193A3

公开(公告)日：1988-03-23

申请号：EP87630076

申请日：1987-04-30

Applicant: LANXIDE TECHNOLOGY COMPANY, LP.

Inventor： Newkirk, Marc S. ,  Kantner, Robert C.

IPC: C04B35/65 ,  C04B35/71 ,  C04B35/80

CPC classification number: B29C43/10 ,  B29C2043/3652 ,  B29L2031/7096 ,  C04B35/652 ,  C04B35/71 ,  C04B35/80

Abstract: In the present invention, there is provided a method for producing a self-supporting ceramic body by the oxidation of a parent metal to form a polycrystalline ceramic material consisting essentially of the oxidation reaction product of said parent metal with an oxidant, including a vapor-phase oxidant, and optionally one or more metallic constituents. The method comprises the steps of providing at least a portion of said parent metal with a barrier means at least partially spaced from said parent metal for establishing at least one surface of the ceramic body, and heating said parent metal to a temperature above its melting point but below the melting point of the oxidation reaction product to form a body of molten metal. At that temperature, the molten metal is reacted with the oxidant, thus forming the oxidation reaction product. At least a portion of the oxidation reaction product is maintained in contact with and between the molten metal and oxidant to transport the molten metal through the oxidation reaction product toward the barrier means and into contact with the oxidant so that the oxidation reaction product continues to form at the interface between the oxidant and previously formed oxidation reaction product optionally leaving metal dispersed through the polycrystalline material. The reaction is continued to the barrier means to produce a ceramic body having the surface established by the barrier means. A composite is formed by superimposing a barrier onto a filler material, such as a preform, and infiltrating the filler with the polycrystalline ceramic matrix grown to the barrier means.

公开(公告)号：EP0256963A2

公开(公告)日：1988-02-24

申请号：EP87630133.4

申请日：1987-07-28

Applicant: LANXIDE TECHNOLOGY COMPANY, LP.

Inventor： Newkirk, Marc S. ,  Urquhart, Andrew W. ,  Zwicker, Harry R.

IPC: C23C10/22 ,  C04B35/65 ,  C22C29/12 ,  C04B41/88

CPC classification number: C04B41/009 ,  B22F2999/00 ,  C04B35/652 ,  C04B41/51 ,  C04B41/88 ,  C22C1/1015 ,  C22C1/1036 ,  C22C29/12 ,  C22C47/06 ,  C22C2001/1057 ,  C23C10/22 ,  Y10S264/36 ,  Y10T428/12007 ,  Y10T428/12056 ,  Y10T428/12146 ,  Y10T428/12167 ,  Y10T428/12583 ,  C04B41/4505 ,  C04B35/00 ,  C04B35/65 ,  B22F2202/01

Abstract: A method of producing self-supporting ceramic bo­dies (10) having a modified metal-containing component in­cludes first providing a self-supporting ceramic body (10) comprising (i) a polycrystalline oxidation reaction pro­duct (12) formed upon oxidation of a molten parent metal precursor with an oxidant, and (ii) an interconnected metal-­containing component (14) at least partially accessible from one or more surfaces (15) of said ceramic body (10). The surface or surfaces (15) of the ceramic body (10) is contacted with a quantity of foreign metal different from said interconnected metal-containing component (14) at a temperature and for a time sufficient to allow for inter­diffusion, whereby at least a portion of said metal-con­taining component (14) is displaced by said foreign metal. The resulting ceramic body, having an altered metal-con­taining component, exhibits modified or improved pro­perties.

Abstract translation: 具有修饰的含金属的组分生产自支承陶瓷体的方法（10），包括首先提供一种自支撑陶瓷体（10）包括：（i）一个多晶氧化反应产物（12）根据一种熔融母体的氧化而形成的 与氧化剂金属前体，和互相连接的含金属的组分（14）至少部分地从所述陶瓷体的一个或多个表面（15），（10）可访问的（ⅱ）。 陶瓷体的一个或多个表面（15）（10）与外来金属的从所述互相连接的含金属的组分（14）的不同的温度和足够长的时间的量相接触，以允许相互扩散，由此至少一个 含金属的组分（14）的所述部分被所述外来金属置换。 将所得的陶瓷体，其改变的含金属的组分，展品修饰或改善的性质。

公开(公告)号：EP0245192A2

公开(公告)日：1987-11-11

申请号：EP87630075.7

申请日：1987-04-30

Applicant: LANXIDE TECHNOLOGY COMPANY, LP.

Inventor： Newkirk, Marc S. ,  Zwicker, Shirley L.

IPC: C04B35/65 ,  C04B35/71 ,  C04B35/80

CPC classification number: C04B35/652 ,  B29K2303/06 ,  B29L2031/7096 ,  C04B35/71 ,  C04B35/80

Abstract: A method of producing self-supporting ceramic composite bodies of desired shaped by infiltrating a permeable preform with polycrystalline matrix material consisting essentially of an oxidation reaction product obtained by oxidation of a parent metal precursor, such as aluminum, and optionally containing therein metallic constituents. The composite body is formed by contacting a zone of a permeable preform, having at least one defined surface boundary spaced from said contacting zone, with a body of molten metal which is reacted with a suitable vapor-phase oxidant to form an oxidation reaction product. Within a certain temperature region, and optionally with one or more dopants in or on the parent metal or said permeable preform, molten parent metal migrates through previously formed oxidation reaction product into contact with the oxidant, causing the oxidation reaction product to grow into the preform toward said defined surface boundary so as to infiltrate the preform up to said defined surface boundary, and provide the composite structure of desired geometry.

Abstract translation: 通过用多晶基质材料渗透可渗透的预制件来制备所需成型的自支撑陶瓷复合体的方法，所述多晶基体材料主要由氧化母体金属前体如铝形成的氧化反应产物组成，并且任选地含有金属组分。 复合体是通过将具有至少一个与所述接触区隔开的限定表面边界的可渗透预制件的区域与熔融金属体接触而形成的，该主体与合适的气相氧化剂反应以形成氧化反应产物。 在一定温度范围内，并且任选地在母体金属或所述可渗透预制件中或上方具有一种或多种掺杂剂，熔融母体金属通过先前形成的氧化反应产物迁移到与氧化剂接触，导致氧化反应产物生长到预制件 朝向所述限定的表面边界，以便将预型件渗透到所述限定的表面边界，并提供所需几何形状的复合结构。