1.1 This test method covers determination of the flexural strength of advanced ceramics at elevated temperatures.2 Four-point-1⁄4-point and three-point loadings with prescribed spans are the standard as shown in Fig. 1. Rectangular specimens of prescribed cross-section are used with specified features in prescribed specimen-fixture combinations. Test specimens may be 3 by 4 by 45 to 50 mm in size that are tested on 40-mm outer span four-point or three-point fixtures. Alternatively, test specimens and fixture spans half or twice these sizes may be used. The test method permits testing of machined or as-fired test specimens. Several options for machining preparation are included: application matched machining, customary procedures, or a specified standard procedure. This test method describes the apparatus, specimen requirements, test procedure, calculations, and reporting requirements. The test method is applicable to monolithic or particulateor whisker-reinforced ceramics. It may also be used for glasses. It is not applicable to continuous fiberreinforced ceramic composites.
1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
1.3 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.
1.4 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.
ASTM C1211-18(2023) Referenced Document
ASTM C1161 Standard Test Method for Flexural Strength of Advanced Ceramics at Ambient Temperature
ASTM C1239 Standard Practice for Reporting Uniaxial Strength Data and Estimating Weibull Distribution Parameters for Advanced Ceramics
ASTM C1322 Standard Practice for Fractography and Characterization of Fracture Origins in Advanced Ceramics
ASTM C1341 Standard Test Method for Flexural Properties of Continuous Fiber-Reinforced Advanced Ceramic Composites*, 2023-06-09 Update
ASTM C1368 Standard Test Method for Determination of Slow Crack Growth Parameters of Advanced Ceramics by Constant Stress Rate Strength Testing at Ambient Temperature
ASTM C1465 Standard Test Method for Determination of Slow Crack Growth Parameters of Advanced Ceramics by Constant Stress-Rate Flexural Testing at Elevated Temperatures
ASTM E220 Standard Test Method for Calibration of Thermocouples By Comparison Techniques
ASTM E230 Standard Specification and Temperature-Electromotive Force (EMF) Tables for Standardized Thermocouples
ASTM E4 Standard Practices for Force Verification of Testing Machines
ASTM C1211-18(2023) history
2023ASTM C1211-18(2023) Standard Test Method for Flexural Strength of Advanced Ceramics at Elevated Temperatures
2018ASTM C1211-18 Standard Test Method for Flexural Strength of Advanced Ceramics at Elevated Temperatures
2013ASTM C1211-13 Standard Test Method for Flexural Strength of Advanced Ceramics at Elevated Temperatures
2002ASTM C1211-02(2008) Standard Test Method for Flexural Strength of Advanced Ceramics at Elevated Temperatures
2002ASTM C1211-02 Standard Test Method for Flexural Strength of Advanced Ceramics at Elevated Temperatures
1998ASTM C1211-98a Standard Test Method for Flexural Strength of Advanced Ceramics at Elevated Temperatures