Std

ASTM C1836-16(2023)

Standard Classification for Fiber Reinforced Carbon-Carbon Composite Structures

standard by ASTM International , 05/01/2023

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Full Description

1.1 This classification covers fiber reinforced carbon-carbon (C-C) composite structures (flat plates, rectangular bars, round rods, and tubes) manufactured specifically for structural components. The carbon-carbon composites consist of carbon/graphite fibers (from PAN, pitch, or rayon precursors) in a carbon/graphite matrix produced by liquid infiltration/pyrolysis or by chemical vapor infiltration, or both.
1.2 The classification system provides a means of identifying and organizing different C-C composites, based on the fiber type, architecture class, matrix densification, physical properties, and mechanical properties. The system provides a top-level identification system for grouping different types of C-C composites into different classes and provides a means of identifying the general structure and properties of a given C-C composite. It is meant to assist the ceramics community in developing, selecting, and using C-C composites with the appropriate composition, construction, and properties for a specific application.
1.3 The classification system produces a classification code for a given C-C composite, which shows the type of fiber, reinforcement architecture, matrix type, fiber volume fraction, density, porosity, and tensile strength and modulus (room temperature).
1.3.1 For example, Carbon-Carbon Composites Classification Code, C3-A2C-4C2*-32-classification of a carbon-carbon composite material/component (C3) with PAN based carbon fiber (A) in a 2-D (2) fiber architecture with a CVI matrix (C), a fiber volume of 45 % (4), a bulk density of 1.5 g/cc (C), an open porosity less than 2 % (2*), an average ultimate tensile strength of 360 MPa (3), and an average tensile modulus of 35 GPa (2).
1.4 This classification system is a top level identification tool which uses a limited number of composite properties for high level classification. It is not meant to be a complete, detailed material specification, because it does not cover the full range of composition, architecture, physical, mechanical, fabrication, and durability requirements commonly defined in a full design specification. Guide C1783 provides extensive and detailed direction and guidance in preparing a complete material specification for a given C-C composite component.
1.5 Units-The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
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.
 

Product Details

Published:
05/01/2023
Number of Pages:
6
File Size:
1 file , 300 KB
Note:
This product is unavailable in Russia, Ukraine, Belarus
 

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  1. ASTM C1836-16(2023)

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    Standard Classification for Fiber Reinforced Carbon-Carbon Composite Structures

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