Textile material joining technique

Patent metadata

Field	Value
Publication number	US-10696008-B2
Application number	US-201314141962-A
Country	US
Kind code	B2
Filing date	Dec 27, 2013
Priority date	Mar 15, 2013
Publication date	Jun 30, 2020
Grant date	Jun 30, 2020

Abstract

Techniques for joining textile materials are provided. In one non-limiting form, a system includes a woven structure having a first woven layer and at least a first section and a second section. The first section includes a first fringe portion and a first set of fibers, and the second section includes a second fringe portion and a second set of fibers. The fibers of the first and second sets of fibers are configured in the first and second fringe portions to provide an interlocking arrangement between the first and second sections. Further embodiments, forms, features, and aspects shall become apparent from the description and drawings.

First claim

What is claimed:

1. A ceramic matrix composite component comprising:
a woven structure ceramic preform comprising a first woven layer, the first woven layer including at least a first section and a second section, the first section including a first fringe portion having a first set of ceramic fibers, and the second section including a second fringe portion having a second set of ceramic fibers, wherein the first set of ceramic fibers of the first fringe portion and the second set of ceramic fibers of the second fringe portion provide an interlocking arrangement between the first and second sections within a joining portion, wherein the first fringe portion and the second fringe portion are not woven in the joining portion where the interlocking arrangement is provided, wherein a first number of the first set of ceramic fibers of the first fringe portion is configured to extend a shorter length into the joining portion than a second number of fibers of the first set of ceramic fibers of the first fringe portion, and wherein each of the first number of ceramic fibers and the second number of ceramic fibers include a cut end within the joining portion; and
a matrix material infiltrated into the woven structure ceramic preform.

2. The ceramic matrix composite component of claim 1 , wherein:
the first fringe portion includes a plurality of spaces transversely positioned between the fibers of the first set of ceramic fibers, the spaces each being configured to receive at least one of the fibers of the second set of ceramic fibers; and
the second fringe portion includes a plurality of spaces transversely positioned between the fibers of the second set of ceramic fibers, the spaces each being configured to receive at least one of the fibers of the first set of ceramic fibers.

3. The ceramic matrix composite component of claim 1 , wherein one or more of the fibers of the first and second sets of ceramic fibers includes a first portion having a modified cross-sectional configuration relative to a second portion.

4. The ceramic matrix composite component of claim 3 , wherein the first portion of the one or more fibers is positioned in the first and second fringe portions.

5. The ceramic matrix composite component of claim 1 , further including at least one support fiber positioned approximate the interlocking arrangement and extending transversely to the fiber or the first and second sets of ceramic fibers.

6. The ceramic matrix composite component of claim 5 , wherein the at least one support fiber is positioned on a surface of the first woven layer.

7. The ceramic matrix composite component of claim 1 , further comprising a number of woven layers in addition to the first woven layer.

8. The ceramic matrix composite component of claim 1 , further comprising a number of woven layers in addition to the first woven layer, wherein:
each of the additional woven layers includes a first section and a second section;
the first section of each of the additional woven layers includes a first fringe portion and a first set of ceramic fibers, and the second section of each of the additional woven layers includes a second fringe portion and a second set of ceramic fibers; and
the fibers of the first and second sets of ceramic fibers of a respective woven layer are configured to provide an interlocking arrangement between the first and second sections of the respective woven layer.

9. The ceramic matrix composite component of claim 1 , further comprising a number of woven layers in addition to the first woven layer, wherein:
each of the additional woven layers includes a first section and a second section;
the first section of each of the additional woven layers includes a first fringe portion and the second section of each of the additional woven layers includes a second fringe portion; and
the first and second fringe portions of each woven layer are joined together by the interlocking arrangement.

10. The ceramic matrix composite component of claim 1 , wherein the interlocking arrangement is formed by the first and second fringe portions and is elongated and extends away from the first and second sections.

11. The ceramic matrix composite component of claim 1 , wherein the interlocking arrangement includes a number of fibers of the first set of ceramic fibers positioned adjacent to and extending alongside a number of fibers of the second set of ceramic fibers to provide an overlapping arrangement between the first and second fringe portions.

12. The ceramic matrix composite component of claim 1 , wherein the interlocking arrangement includes a number of fibers of the first set of ceramic fibers extending transversely to and positioned between a number of fibers of the second set of ceramic fibers.

13. The ceramic matrix composite component of claim 12 , further comprising a number of woven layers in addition to the first woven layer, wherein:
each additional woven layer includes a first section and a second section;
the interlocking arrangement includes a number of fibers of the first set of ceramic fibers of the first woven layer extending transversely to and positioned between a number of fibers of a set of ceramic fibers of one or more of the additional woven layers.

14. The ceramic matrix composite component of claim 1 , further comprising a matrix material infiltrating the first woven layer.

15. The ceramic matrix composite component of claim 1 , wherein the interlocking arrangement between the first and second sections is fixed in place by the infiltrated matrix material.

16. The ceramic matrix composite component of claim 1 , wherein a third number of fibers of the first set of ceramic fibers of the first fringe portion are configured to terminate before extending into the joining portion.

17. A ceramic matrix composite component comprising:
a woven structure ceramic preform comprising a first woven layer, the first woven layer including at least a first section and a second section, the first section including a first fringe portion having a first set of ceramic fibers, each of the first set of ceramic fibers having a fiber end, and the second section including a second fringe portion having a second set of ceramic fibers, each of the second set of ceramic fibers having a fiber end, wherein the first set of ceramic fibers of the first fringe portion and the second set of ceramic fibers of the second fringe portion provide an interlocking arrangement between the first and second sections within a joining portion, wherein the first fringe portion and the second fringe portion are not woven in the joining portion where the interlocking arrangement is provided, wherein a first number of the first set of ceramic fibers of the first fringe portion is configured to extend a shorter length into the joining portion than a second number of fibers of the first set of ceramic fibers of the first fringe portion, and wherein each of the fiber ends of the first number of ceramic fibers and each of the fiber ends of the second number of ceramic fibers terminate within the joining portion; and
a matrix material infiltrated into the woven structure ceramic preform.

18. The ceramic matrix composite component of claim 17 , wherein the fiber ends of the first number of ceramic fibers and the second number of ceramic fibers project only linearly into the joining portion.

19. The ceramic matrix composite component of claim 17 , wherein each of the first set of ceramic fibers is cut at the fiber end, each of the second set of ceramic fibers is cut at the fiber end.

Assignees

• Rolls Royce Corp

Inventors

• Lazur Andrew Joseph

Classifications

• D03D3/04

  Endless fabrics · CPC title

• D10B2505/02

  Reinforcing materials; Prepregs · CPC title

• D03D1/00

  Woven fabrics designed to make specified articles · CPC title

• B32B2262/105

  Ceramic fibres · CPC title

• B32B2262/0269

  Aromatic polyamide fibres · CPC title