公开(公告)号：US20050181192A1

公开(公告)日：2005-08-18

申请号：US10261475

申请日：2002-09-30

Applicant: Wayne Steffier

Inventor： Wayne Steffier

IPC: B32B17/12 ,  B32B18/00 ,  B32B27/04 ,  C04B35/565 ,  C04B35/628 ,  C04B35/80 ,  D04H1/00 ,  D04H1/42 ,  D04H3/00 ,  D04H13/00

CPC classification number: B32B18/00 ,  C04B35/565 ,  C04B35/62868 ,  C04B35/62873 ,  C04B35/62884 ,  C04B35/62894 ,  C04B35/62897 ,  C04B35/806 ,  C04B2235/428 ,  C04B2235/5244 ,  C04B2235/5256 ,  C04B2235/5268 ,  C04B2235/614 ,  C04B2235/77 ,  C04B2235/80 ,  C04B2235/96 ,  C04B2237/361 ,  C04B2237/363 ,  C04B2237/365 ,  C04B2237/368 ,  C04B2237/38 ,  D04H1/42 ,  Y10T428/249924 ,  Y10T428/249928 ,  Y10T428/24993 ,  Y10T428/249931 ,  Y10T428/24994 ,  Y10T428/249945 ,  Y10T428/2918 ,  Y10T428/2933 ,  Y10T428/2938

Abstract: A fiber-reinforced ceramic matrix composite material exhibiting increased matrix cracking strength and fracture toughness is produced by sequentially depositing a plurality of 5-500 nanometer-thick layers of a primary ceramic matrix material phase periodically separated by 1-100 nanometer-thick intermediate layers of a secondary matrix material phase onto the reinforcing fibers upon their consolidation. The resultant nanolayered matrix enhances the resistance to the onset of matrix cracking, thus increasing the useful design strength of the ceramic matrix composite material. The nanolayered microstructure of the matrix constituent also provides a unique resistance to matrix crack propagation. Through extensive inter-layer matrix fracture, debonding and slip, internal matrix microcracks are effectively diverted and/or blunted prior to their approach towards the reinforcing fiber, thus increasing the apparent toughness of the matrix constituent. This unique toughening mechanism serves to dampen energetic co-planar macrocrack propagation typically observed in conventionally manufactured ceramic matrix composites wherein matrix cracks are usually deflected at the fiber/matrix interphase region.

Abstract translation: 表现出增加的基体裂解强度和断裂韧性的纤维增强陶瓷基复合材料是通过依次沉积多个5-500纳米厚的初级陶瓷基体材料相，其中第一陶瓷基体材料相周期性地由1-100纳米厚的中间层 次级基质材料相在其固结时在增强纤维上。 所得的纳米基体增强了基体开裂的抗性，从而增加了陶瓷基复合材料的有用设计强度。 基体组分的纳米层状微结构也提供了对基体裂纹扩展的独特的抗性。 通过广泛的层间基体断裂，剥离和滑动，内部基体微裂纹在进入增强纤维之前有效地转向和/或钝化，从而增加基体成分的表观韧性。 这种独特的增韧机理用于抑制通常在常规制造的陶瓷基质复合材料中观察到的能量共面的宏观裂纹扩展，其中基体裂纹通常在纤维/基质相间区域被偏转。

公开(公告)号：US20050233127A1

公开(公告)日：2005-10-20

申请号：US11156034

申请日：2005-06-20

Applicant: Wayne Steffier

Inventor： Wayne Steffier

IPC: B32B17/12 ,  B32B18/00 ,  B32B27/04 ,  C04B35/565 ,  C04B35/628 ,  C04B35/80 ,  D04H1/00 ,  D04H1/42 ,  D04H3/00 ,  D04H13/00

CPC classification number: C04B35/62873 ,  B32B18/00 ,  C04B35/565 ,  C04B35/62868 ,  C04B35/62884 ,  C04B35/62894 ,  C04B35/62897 ,  C04B35/806 ,  C04B2235/428 ,  C04B2235/5244 ,  C04B2235/5256 ,  C04B2235/5268 ,  C04B2235/614 ,  C04B2235/77 ,  C04B2235/80 ,  C04B2235/96 ,  C04B2237/361 ,  C04B2237/363 ,  C04B2237/365 ,  C04B2237/368 ,  C04B2237/38 ,  C04B2237/704 ,  D04H1/42 ,  Y10T428/249924

Abstract: A fiber-reinforced ceramic matrix composite material exhibiting increased matrix cracking strength and fracture toughness is produced by sequentially depositing a plurality of 5-500 nanometer-thick layers of a primary ceramic matrix material phase periodically separated by 1-100 nanometer-thick intermediate layers of a secondary matrix material phase onto the reinforcing fibers upon their consolidation. The resultant nanolayered matrix enhances the resistance to the onset of matrix cracking, thus. increasing the useful design strength of the ceramic matrix composite material. The nanolayered microstructure of the matrix constituent also provides a unique resistance to matrix crack propagation. Through extensive inter-layer matrix fracture, debonding and slip, internal matrix microcracks are effectively diverted and/or blunted prior to their approach towards the reinforcing fiber, thus increasing the apparent toughness of the matrix constituent. This unique toughening mechanism serves to dampen energetic co-planar macrocrack propagation typically observed in conventionally manufactured ceramic matrix composites wherein matrix cracks are usually deflected at the fiber/matrix interphase region.

Abstract translation: 表现出增加的基体裂解强度和断裂韧性的纤维增强陶瓷基复合材料是通过依次沉积多个5-500纳米厚的初级陶瓷基体材料相，其中第一陶瓷基体材料相周期性地由1-100纳米厚的中间层 次级基质材料相在其固结时在增强纤维上。 所得的纳米基体增强了基体开裂的抗性，因此。 增加陶瓷基复合材料的有用设计强度。 基体组分的纳米层状微结构也提供了对基体裂纹扩展的独特的抗性。 通过广泛的层间基体断裂，剥离和滑动，内部基体微裂纹在进入增强纤维之前有效地转向和/或钝化，从而增加基体成分的表观韧性。 这种独特的增韧机理用于抑制通常在常规制造的陶瓷基质复合材料中观察到的能量共面的宏观裂纹扩展，其中基体裂纹通常在纤维/基质相间区域被偏转。