🔥🔥 Don’t Miss Out on Our End of Autumn Sale. If you have any questions, feel free to click the bottom right corner to contact our customer service..

Concat us[email protected]
Shopping Cart

No products in the cart.

🔍
ASTM-C1674:2011 Edition

ASTM-C1674:2011 Edition

$58.50

C1674-11 Standard Test Method for Flexural Strength of Advanced Ceramics with Engineered Porosity (Honeycomb Cellular Channels) at Ambient Temperatures

Published By Publication Date Number of Pages
ASTM 2011 26
PDF Format Searchable Printable Preview Now
Guaranteed Safe Checkout
Categories: ,

If you have any questions, feel free to reach out to our online customer service team by clicking on the bottom right corner. We’re here to assist you 24/7.
Email:[email protected]

ASTM C1674-11

Historical Standard: Standard Test Method for Flexural Strength of Advanced Ceramics with Engineered Porosity (Honeycomb Cellular Channels) at Ambient Temperatures

ASTM C1674

Scope

1.1 This test method covers the determination of the flexural strength (modulus of rupture in bending) at ambient conditions of advanced ceramic structures with 2-dimensional honeycomb channel architectures.

1.2 The test method is focused on engineered ceramic components with longitudinal hollow channels, commonly called “honeycomb” channels. (See Fig. 1.) The components generally have 30 % or more porosity and the cross-sectional dimensions of the honeycomb channels are on the order of 1 millimeter or greater. Ceramics with these honeycomb structures are used in a wide range of applications (catalytic conversion supports (1), high temperature filters (2, 3), combustion burner plates (4), energy absorption and damping (5), etc.). The honeycomb ceramics can be made in a range of ceramic compositionsalumina, cordierite, zirconia, spinel, mullite, silicon carbide, silicon nitride, graphite, and carbon. The components are produced in a variety of geometries (blocks, plates, cylinders, rods, rings).

1.3 The test method describes two test specimen geometries for determining the flexural strength (modulus of rupture) for a porous honeycomb ceramic test specimen (see Fig. 2):

1.3.1 Test Method A—A 4-point or 3-point bending test with user-defined specimen geometries, and

1.3.2 Test Method B—A 4-point- ¼ point bending test with a defined rectangular specimen geometry (13 mm × 25 mm × > 116 mm) and a 90 mm outer support span geometry suitable for cordierite and silicon carbide honeycombs with small cell sizes.

1.4 The test specimens are stressed to failure and the breaking force value, specimen and cell dimensions, and loading geometry data are used to calculate a nominal beam strength, a wall fracture strength, and a honeycomb structure strength.

1.5 Test results are used for material and structural development, product characterization, design data, quality control, and engineering/production specifications.

1.6 The test method is meant for ceramic materials that are linear-elastic to failure in tension. The test method is not applicable to polymer or metallic porous structures that fail in an elastomeric or an elastic-ductile manner.

Keywords

advanced ceramics; catalysts; cellular structure; filters; flexural strength; four-point flexure; honeycomb; honeycomb structure strength; nominal beam strength; porosity; three-point flexure; wall fracture strength; Advanced ceramics; Cellular materials; Flexural testing–ceramics

ICS Code

ICS Number Code 81.060.30 (Advanced ceramics)

DOI: 10.1520/C1674-11

PDF Catalog

PDF Pages PDF Title
1 Scope
Referenced Documents
2 Terminology
FIG. 1
FIG. 2
3 FIG. 3
4 Summary of Test Method
Significance and Use
6 Interferences and Critical Factors
7 Safety
Apparatus
8 Specimen Geometry and Preparation
FIG. 4
9 FIG. 5
10 FIG. 6
11 Test Preparation and Procedure
12 FIG. 7
13 Calculation
14 Report
15 Precision and Bias
16 TABLE 1
TABLE 2
TABLE 3
17 Measurement Uncertainty
Keywords
A1. SEMI- AND FULLY-ARTICULATING FOUR-POINT FIXTURES
A1.1
A1.2
A1.3
18 FIG. A1.1
19 FIG. A1.2
20 A2. CRITICAL EXPERIMENTAL AND INTERFERENCE FACTORS IN FLEXURE TESTING OF HONEYCOMB CELLULAR CERAMICS
A2.1 Material Factors
FIG. A1.3
21 A2.2 Specimen Finishing, Condition, Geometry, and Size Factors
A2.3 Experimental Test Factors
22 X1. SPECIMEN LINEAR CELL COUNT EFFECTS ON THE FLEXURE STRENGTH OF HONEYCOMB CHANNEL CERAMIC COMPONENTS
X1.1
X1.2
TABLE X1.1
23 X1.3
X1.4
X1.5
FIG. X1.1
24 FIG. X1.2
FIG. X1.3
25 REFERENCES
FIG. X1.4

Related products

ASTM-C1674
$58.50