Unlock instant, AI-driven research and patent intelligence for your innovation.

Continuous fiber-reinforced silicon carbide member, manufacturing method thereof, and nuclear reactor structural member

A manufacturing method and technology of silicon carbide, which are applied in the directions of reactor fuel elements, moderator/core structure, reactor, etc., can solve problems such as brittle fracture, and achieve the effect of improving environmental resistance and improving mechanical properties

Active Publication Date: 2018-11-23
KK TOSHIBA +1
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, a silicon carbide monolithic member, which is a silicon carbide member, has a weaker tensile stress than a compressive stress, and brittle fracture may occur when a tensile stress is applied.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Continuous fiber-reinforced silicon carbide member, manufacturing method thereof, and nuclear reactor structural member
  • Continuous fiber-reinforced silicon carbide member, manufacturing method thereof, and nuclear reactor structural member
  • Continuous fiber-reinforced silicon carbide member, manufacturing method thereof, and nuclear reactor structural member

Examples

Experimental program
Comparison scheme
Effect test

no. 1 Embodiment approach ＞

[0028] [constitute]

[0029] figure 1 It is a perspective view schematically showing the long-fiber-reinforced silicon carbide member of the first embodiment.

[0030] Such as figure 1 As shown in , the long-fiber-reinforced silicon carbide member 1 of this embodiment is, for example, a cylindrical tubular body in which long fibers are continuously arranged in the long-fiber-reinforced silicon carbide member 1 .

[0031] figure 2 It is a sectional view showing the long-fiber-reinforced silicon carbide member of the first embodiment. figure 2 In , the long-fiber-reinforced silicon carbide member 1 is shown for a cross-section perpendicular to the axial direction.

[0032] Such as figure 2 As shown in , the long fiber reinforced silicon carbide member 1 has a first composite material layer 11 and a second composite material layer 21, and the first composite material layer 11 and the second composite material layer 21 are laminated in the radial direction.

[0033] The f...

no. 2 Embodiment approach ＞

[0050] [constitute]

[0051] Figure 6 It is a cross-sectional view showing a long-fiber-reinforced silicon carbide member of the second embodiment. Figure 6 and figure 2 Similarly, regarding the long-fiber-reinforced silicon carbide member 1 , a cross-section perpendicular to the axial direction is shown.

[0052] Such as Figure 6 As shown in , the long-fiber-reinforced silicon carbide member 1 of the present embodiment includes the first composite material layer 11 and the second composite material layer 21 similarly to the case of the first embodiment.

[0053] The long fibers of silicon carbide forming the first composite material layer 11 have a tensile strength of 2 to 4 GPa and a tensile modulus of 150 to 400 GPa. The carbon long fibers forming the second composite material layer 21 have a tensile strength of 1 to 7 GPa and a tensile modulus of 30 to 950 GPa. In the first composite material layer 11 and the second composite material layer 21, depending on the co...

no. 3 Embodiment approach ＞

[0069] [constitute]

[0070] Figure 9 It is a cross-sectional view showing a long-fiber-reinforced silicon carbide member according to a third embodiment. Figure 9 With figure 2 Similarly, with regard to the long fiber reinforced silicon carbide member 1 , a cross section perpendicular to the axial direction is shown.

[0071] Such as Figure 9 As shown in , in this embodiment, unlike the case of the first embodiment, the long-fiber-reinforced silicon carbide member 1 further has a coating material layer 41 . Except for this point and points related thereto, this embodiment is the same as the case of the first embodiment, and description of overlapping parts will be appropriately omitted.

[0072] The coating material layer 41 is provided so as to cover the outer peripheral surface of the second composite material layer 21 .

[0073] In the present embodiment, the coating material layer 41 is formed of a single substance of a material selected from carbon, titanium car...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
thicknessaaaaaaaaaa
thicknessaaaaaaaaaa
thicknessaaaaaaaaaa
Login to View More

Abstract

A continuous fiber-reinforced silicon carbide member of an embodiment is in a tubular shape and has a first composite material layer and a second composite material layer. In the first composite material layer, continuous fibers of silicon carbide are combined with a matrix of silicon carbide. In the second composite material layer, continuous fibers of carbon are combined with a matrix of siliconcarbide. Then, the first composite material layer and the second composite material layer are stacked.

Description

technical field [0001] Embodiments of the present invention relate to long fiber reinforced silicon carbide components, methods of manufacturing the same, and nuclear reactor (also referred to as atomic reactor) structural components. Background technique [0002] A silicon carbide member, which is a ceramics material, generally has little decrease in strength in a high-temperature environment. In addition, silicon carbide members have higher hardness than conventional metal members, and are excellent in properties such as wear resistance, heat resistance, oxidation resistance, corrosion resistance, and light weight. Therefore, silicon carbide members have been used in a wide range of fields. For example, silicon carbide members are used as materials for heavy electric equipment parts, aircraft parts, automobile parts, electronic equipment, precision machine parts, and semiconductor devices. [0003] However, in a silicon carbide monolithic member, which is a silicon carbi...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/80C04B35/565G21D1/00C04B35/64C04B35/52C04B35/628
CPCC04B35/52C04B35/565C04B35/6286C04B35/62865C04B35/62873C04B35/62876C04B35/62881C04B35/64G21D1/00C04B2235/614C04B2237/70B32B18/00C04B37/005C04B2237/08C04B2237/083C04B2237/086C04B2237/365C04B2237/38C04B2237/84C04B2235/5264C04B2235/94C04B2237/55C04B2237/704C04B2237/708C04B2237/765C04B41/85C04B41/87C04B41/009C04B41/5001C04B41/5024C04B41/5061C04B41/5062C23C16/045C23C16/32C04B2235/5248C04B2235/5244Y02E30/30Y02E30/00C04B35/80G21C3/324C04B35/806C04B2103/0021C04B35/76G21C5/00B32B1/08B32B5/26B32B37/24G21C3/00C04B35/83C23C16/325
Inventor 须山章子鹈饲胜内桥正幸垣内一雄日置秀明
Owner KK TOSHIBA
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com