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ASTM-C1684:2008 Edition

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C1684-08 Standard Test Method for Flexural Strength of Advanced Ceramics at Ambient Temperature-Cylindrical Rod Strength

Published By Publication Date Number of Pages
ASTM 2008 21
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1.1 This test method is for the determination of flexural strength of rod shape specimens of advanced ceramic materials at ambient temperature. In many instances it is preferable to test round specimens rather than rectangular bend specimens, especially if the material is fabricated in rod form. This method permits testing of machined, drawn, or as-fired rod shaped specimens. It allows some latitude in the rod sizes and cross section shape uniformity. Rod diameters between 1.5 and 8 mm and lengths from 25 to 85 mm are recommended, but other sizes are permitted. Four-point-1/4 point as shown in Fig.1 is the preferred testing configuration. Three-point loading is permitted. This method describes the apparatus, specimen requirements, test procedure, calculations, and reporting requirements. The method is applicable to monolithic or particulate- or whisker-reinforced ceramics. It may also be used for glasses. It is not applicable to continuous fiber-reinforced ceramic composites.

1.2 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 and health practices and determine the applicability of regulatory limitations prior to use.

PDF Catalog

PDF Pages PDF Title
1 Scope
Referenced Documents
Terminology
2 Significance and Use
FIG. 1
FIG. 2
3 Interferences
Apparatus
TABLE 1
4 FIG. 3
5 Sampling, Test Specimens, and Test Units
FIG. 4
TABLE 2
TABLE 3
7 Procedure
8 Calculation or Interpretation of Results
9 Report
Precision and Bias
10 Keywords
A1. CONTACT CRACKS IN RODS TESTED WITH ROLLERS
A1.1
A1.2
11 FIG. A1.1
FIG. A1.2
FIG. A1.3
12 A2. FIXTURES WITH CRADLES
A2.1
FIG. A1.4
FIG. A2.1
13 FIG. A2.2
14 FIG. A2.3
15 FIG. A2.4
16 A3. INTERPRETATION OF FRACTURE PATTERNS
A3.1
FIG. A2.5
FIG. A2.6
17 FIG. A3.1
18 FIG. A3.2
19 FIG. A3.3
FIG. A3.4
20 X1. WEIBULL EFFECTIVE VOLUME AND EFFECTIVE SURFACES FOR RODS BROKEN IN FLEXURE
X1.1
X1.2
FIG. A3.5
TABLE X1.1
21 REFERENCES
FIG. X1.1
ASTM-C1684
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