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ASTM C1793-15

(Guide)

Standard Guide for Development of Specifications for Fiber Reinforced Silicon Carbide-Silicon Carbide Composite Structures for Nuclear Applications

Standard Guide for Development of Specifications for Fiber Reinforced Silicon Carbide-Silicon Carbide Composite Structures for Nuclear Applications

SIGNIFICANCE AND USE
4.1 Composite materials consist by definition of a reinforcement phase in a matrix phase. In addition, ceramic matrix composites (CMCs) often contain measurable porosity which interacts with the reinforcement and matrix. And SiC-SiC composites often use a fiber interface coating which has an important mechanical function. The composition and structure of these different constituents in the CMC are commonly tailored for a specific application with detailed performance requirements. The tailoring involves the selection of the reinforcement fibers (composition, properties, morphology, etc), the matrix (composition, properties, and morphology), the composite structure (component fractions, reinforcement architecture, interface coatings, porosity structure, microstructure, etc.), and the fabrication conditions (forming, assembly, forming, densification, finishing, etc.). The final engineering properties (physical, mechanical, thermal, electrical, etc) can be tailored across a broad range with major directional anisotropy in the properties.  
4.2 Specifications for specific CMC components covering materials, material processing, and fabrication procedures are developed to provide a basis for fabricating reproducible and reliable structures. Designer/users/producers have to write CMC specifications for specific applications with well-defined composition, structure, properties and processing requirements. But with the extensive breadth of selection in composition, structure, and properties in CMCs, it is virtually impossible to write a "generic" CMC specification applicable to any and all CMC applications that has the same type of structure and details of the commonly-used specifications for metal alloys. This guide is written to assist the designer/user/producer in developing a comprehensive and detailed material specification for a specific CMC application/component with a specific focus on nuclear applications.  
4.3 The purpose of this guide is to provide guidance on ...
SCOPE
1.1 This document is a guide to preparing material specifications for silicon carbide fiber/silicon carbide matrix (SiC-SiC) composite structures (flat plates, rectangular bars, round rods, and tubes) manufactured specifically for structural components and for fuel cladding in nuclear reactor core applications. The SiC-SiC composites consist of silicon carbide fibers in a silicon carbide matrix produced by liquid infiltration/pyrolysis and/or by chemical vapor infiltration.  
1.2 This guide provides direction and guidance for the development of a material specification for a specific SiC-SiC composite component or product for nuclear reactor applications. The guide considers composite constituents and structure, physical and chemical properties, mechanical properties, thermal properties, performance durability, methods of testing, materials and fabrication processing, and quality assurance. The SiC-SiC composite materials considered here would be suitable for nuclear reactor core applications where neutron irradiation-induced damage and dimensional changes are significant design considerations. (1-8)2  
1.3 The component material specification is to be developed by the designer/purchaser/user. The designer/purchaser/user shall define and specify in detail any and all application-specific requirements for design, manufacturing, performance, and quality assurance of the ceramic composite component. Additional specification items for a specific component, beyond those listed in this guide, may be required based on intended use, such as geometric tolerances, permeability, bonding, sealing, attachment, and system integration.  
1.4 This guide is specifically focused on SiC-SiC composite components and structures with flat plate, solid rectangular bar, solid round rod, and tubular geometries.  
1.5 This guide may also be applicable to the development of specifications for SiC-SiC composites used for other structural applic...

General Information

Status
Historical
Publication Date
31-Aug-2015
ICS
83.120 - Reinforced plastics
Technical Committee
C28 - Advanced Ceramics
Drafting Committee
C28.07 - Ceramic Matrix Composites
Current Stage
Ref Project

Relations

Refers
ASTM C714-23 - Standard Guide for Thermal Diffusivity of Carbon and Graphite by Thermal Pulse Method
Effective Date
01-Oct-2023
Refers
ASTM C559-16(2020) - Standard Test Method for Bulk Density by Physical Measurements of Manufactured Carbon and Graphite Articles
Effective Date
01-May-2020
Refers
ASTM C1274-12(2020) - Standard Test Method for Advanced Ceramic Specific Surface Area by Physical Adsorption
Effective Date
01-Apr-2020
Refers
ASTM C242-20 - Standard Terminology of Ceramic Whitewares and Related Products
Effective Date
01-Feb-2020
Refers
ASTM C1470-20 - Standard Guide for Testing the Thermal Properties of Advanced Ceramics
Effective Date
01-Jan-2020
Refers
ASTM C1198-20 - Standard Test Method for Dynamic Young’s Modulus, Shear Modulus, and Poisson’s Ratio for Advanced Ceramics by Sonic Resonance
Effective Date
01-Jan-2020
Refers
ASTM C1557-20 - Standard Test Method for Tensile Strength and Young's Modulus of Fibers
Effective Date
01-Jan-2020
Refers
ASTM D7219-19 - Standard Specification for Isotropic and Near-isotropic Nuclear Graphites
Effective Date
01-Nov-2019
Refers
ASTM C577-19 - Standard Test Method for Permeability of Refractories
Effective Date
01-Nov-2019
Refers
ASTM D3878-19a - Standard Terminology for Composite Materials
Effective Date
15-Oct-2019
Refers
ASTM D6507-19 - Standard Practice for Fiber Reinforcement Orientation Codes for Composite Materials
Effective Date
15-Oct-2019
Refers
ASTM E408-13(2019) - Standard Test Methods for Total Normal Emittance of Surfaces Using Inspection-Meter Techniques
Effective Date
01-Oct-2019
Refers
ASTM C242-19a - Standard Terminology of Ceramic Whitewares and Related Products
Effective Date
01-Oct-2019
Refers
ASTM E423-71(2019) - Standard Test Method for Normal Spectral Emittance at Elevated Temperatures of Nonconducting Specimens
Effective Date
01-Oct-2019
Refers
ASTM C242-19 - Standard Terminology of Ceramic Whitewares and Related Products
Effective Date
01-Aug-2019

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ASTM C1793-15 - Standard Guide for Development of Specifications for Fiber Reinforced Silicon Carbide-Silicon Carbide Composite Structures for Nuclear ApplicationsASTM C1793-15 - Standard Guide for Development of Specifications for Fiber Reinforced Silicon Carbide-Silicon Carbide Composite Structures for Nuclear Applications
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ASTM C1793-15 - Standard Guide for Development of Specifications for Fiber Reinforced Silicon Carbide-Silicon Carbide Composite Structures for Nuclear Applications
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This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the
Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Designation: C1793 −15
Standard Guide for
Development of Specifications for Fiber Reinforced Silicon
Carbide-Silicon Carbide Composite Structures for Nuclear
1
Applications
This standard is issued under the fixed designation C1793; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope 1.5 Thisguidemayalsobeapplicabletothedevelopmentof
specifications for SiC-SiC composites used for other structural
1.1 This document is a guide to preparing material specifi-
applications, discounting the nuclear-specific chemical purity
cations for silicon carbide fiber/silicon carbide matrix (SiC-
and irradiation behavior factors.
SiC) composite structures (flat plates, rectangular bars, round
rods, and tubes) manufactured specifically for structural com- 1.6 Units—The values stated in SI units are to be regarded
as standard. No other units of measurement are included in this
ponents and for fuel cladding in nuclear reactor core applica-
tions. The SiC-SiC composites consist of silicon carbide fibers standard.
in a silicon carbide matrix produced by liquid infiltration/
1.7 This standard does not purport to address all of the
pyrolysis and/or by chemical vapor infiltration.
safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to establish appro-
1.2 This guide provides direction and guidance for the
priate safety and health practices and determine the applica-
development of a material specification for a specific SiC-SiC
bility of regulatory limitations prior to use.
composite component or product for nuclear reactor applica-
tions. The guide considers composite constituents and
2. Referenced Documents
structure, physical and chemical properties, mechanical
3
properties,thermalproperties,performancedurability,methods
2.1 ASTM Standards:
of testing, materials and fabrication processing, and quality
C242 Terminology of Ceramic Whitewares and Related
assurance. The SiC-SiC composite materials considered here
Products
would be suitable for nuclear reactor core applications where
C559 Test Method for Bulk Density by Physical Measure-
neutron irradiation-induced damage and dimensional changes
ments of Manufactured Carbon and Graphite Articles
2
are significant design considerations. (1-8)
C577 Test Method for Permeability of Refractories
C611 TestMethodforElectricalResistivityofManufactured
1.3 Thecomponentmaterialspecificationistobedeveloped
Carbon and Graphite Articles at Room Temperature
by the designer/purchaser/user. The designer/purchaser/user
C625 Practice for Reporting Irradiation Results on Graphite
shall define and specify in detail any and all application-
C714 Test Method for Thermal Diffusivity of Carbon and
specific requirements for design, manufacturing, performance,
Graphite by Thermal Pulse Method
and quality assurance of the ceramic composite component.
C769 Test Method for Sonic Velocity in Manufactured
Additional specification items for a specific component, be-
Carbon and Graphite Materials for Use in Obtaining an
yond those listed in this guide, may be required based on
Approximate Value of Young’s Modulus
intended use, such as geometric tolerances, permeability,
C816 Test Method for Sulfur Content in Graphite by
bonding, sealing, attachment, and system integration.
Combustion-Iodometric Titration Method
1.4 This guide is specifically focused on SiC-SiC composite
C838 Test Method for Bulk Density of As-Manufactured
componentsandstructureswithflatplate,solidrectangularbar,
Carbon and Graphite Shapes
solid round rod, and tubular geometries.
C1039 Test Methods for Apparent Porosity, Apparent Spe-
cific Gravity, and Bulk Density of Graphite Electrodes
C1145 Terminology of Advanced Ceramics
1
This guide is under the jurisdiction of ASTM Committee C28 on Advanced
Ceramics and is the direct responsibility of Subcommittee C28.07 on Ceramic
Matrix Composites.
3
Current edition approved Sept. 1, 2015. Published November 2015. DOI: For referenced ASTM standards, visit the ASTM website, www.astm.org, or
10.1520/C1793-15 contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
2
The boldface numbers in parentheses refer to the list of references at the end of Standards volume information, refer to the standard’s Document Summary page on
this standard. the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

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1.1 This test method covers a Soxhlet extraction procedure to determine the matrix content, reinforcement content, and filler content of composite material prepreg. Volatiles content, if appropriate, and required, is determined by means of Test Method D3530.  
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1.4 This test method requires careful specimen design, instrumentation, data measurement, and data analysis. The use of this test method requires close coordination between the test requestor and the test lab personnel. Test requestors need to be familiar with the data analysis procedures of this test method and should not expect test labs who are unfamiliar with this test method to be able to produce acceptable results without close coordination.  
1.5 Units—The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system are not necessarily exact equivalents; therefore, to ensure conformance with the standard, each system shall be used independently of the other, and values from the two systems shall not be combined.  
1.5.1 Within the text, the inch-pound units are shown in brackets.  
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5.1 Refer to Guide D8509.
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1.1 This practice provides instructions for modifying static open-hole tensile and compressive strength test methods to determine the fatigue behavior of composite materials subjected to cyclic tensile or compressive forces, or both. The composite material forms are limited to continuous-fiber reinforced polymer matrix composites in which the laminate is both symmetric and balanced with respect to the test direction. The range of acceptable test laminates and thicknesses are described in 8.2.  
1.2 This practice supplements Test Methods D5766/D5766M and D6484/D6484M with provisions for testing specimens under cyclic loading. Several important test specimen parameters, for example fatigue force (stress) ratio, are not mandated by this practice; however, repeatable results require that these parameters be specified and reported.  
1.3 This practice is limited to test specimens subjected to constant amplitude uniaxial loading, where the machine is controlled so that the test specimen is subjected to repetitive constant amplitude force (stress) cycles. Either engineering stress or applied force may be used as a constant amplitude fatigue variable. The repetitive loadings may be tensile, compressive, or reversed, depending upon the test specimen and procedure utilized.  
1.4 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system are not necessarily exact equivalents; therefore, to ensure conformance with the standard, each system shall be used independently of the other, and values from the two systems shall not be combined.  
1.4.1 Within the text the inch-pound units are shown in brackets.  
1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.6 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

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ASTM
ASTM D7332/D7332M-23(Test Method)
Standard Test Method for Measuring the Fastener Pull-Through Resistance of a Fiber-Reinforced Polymer Matrix Composite

SIGNIFICANCE AND USE
5.1 Refer to Guide D8509.
SCOPE
1.1 This test method determines the fastener pull-through resistance of multidirectional polymer matrix composites reinforced by high-modulus fibers. Fastener pull-through resistance is characterized by the force-versus-displacement response exhibited when a mechanical fastener is pulled through a composite plate, with the force applied perpendicular to the plane of the plate. The composite material forms are limited to continuous-fiber or discontinuous-fiber (tape or fabric, or both) reinforced composites for which the laminate is symmetric and balanced with respect to the test direction. The range of acceptable test laminates and thicknesses is defined in 8.2.  
1.2 Two test procedures and configurations are provided. The first, Procedure A, is suitable for screening and fastener development purposes. The second, Procedure B, is configuration-dependent and is suitable for establishing design values. Both procedures can be used to perform comparative evaluations of candidate fasteners/fastener system designs.  
1.3 The specimens described herein may not be representative of actual joints which may contain one or more free edges adjacent to the fastener, or may contain multiple fasteners that can change the actual boundary conditions.  
1.4 This test method is consistent with the recommendations of CMH-17, which describes the desirable attributes of a fastener pull-through test method.  
1.5 Units—The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system are not necessarily exact equivalents; therefore, to ensure conformance with the standard, each system shall be used independently of the other, and values from the two systems shall not be combined.  
1.5.1 Within the text, the inch-pound units are shown in brackets.  
1.6 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.7 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

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