• ASTM C1421-10

ASTM C1421-10

Standard Test Methods for Determination of Fracture Toughness of Advanced Ceramics at Ambient Temperature

ASTM International, 12/01/2010

Publisher: ASTM

File Format: PDF

$43.00$86.00


Published:01/12/2010

Pages:31

File Size:1 file , 900 KB

Note:This product is unavailable in Russia, Ukraine, Belarus

1.1 These test methods cover the fracture toughness, KIc, determination of advanced ceramics at ambient temperature. The methods determine KIpb (precracked beam test specimen), KIsc (surface crack in flexure), and KIvb (chevron-notched beam test specimen). The fracture toughness values are determined using beam test specimens with a sharp crack. The crack is either a straight-through crack formed via bridge flexure (pb), or a semi-elliptical surface crack formed via Knoop indentation (sc), or it is formed and propagated in a chevron notch (vb), as shown in Fig. 1.

Note 1 - The terms bend(ing) and flexure are synonymous in these test methods.

1.2 These test methods are applicable to materials with either flat or with rising R-curves. Differences in test procedure and analysis may cause the values from each test method to be different. For many materials, such as the silicon nitride Standard Reference Material 2100, the three methods give identical results at room temperature in ambient air.

1.3 The fracture toughness values for a material can be functions of environment, test rate and temperature. These test methods give fracture toughness values for specific conditions of environment, test rate and temperature.

1.4 These test methods are intended primarily for use with advanced ceramics which are macroscopically homogeneous. Certain whisker- or particle-reinforced ceramics may also meet the macroscopic behavior assumptions. Single crystals may also be tested.

1.5 This standard begins with a main body that provides information on fracture toughness testing in general. It is followed by annexes and appendices with specific information for the particular test methods.

More ASTM standard pdf

ASTM A394-08(2015)

ASTM A394-08(2015)

Standard Specification for Steel Transmission Tower Bolts, Zinc-Coated and Bare

$28.00 $57.00

ASTM D8010-15

ASTM D8010-15

Standard Practice for Determination of Water Soluble Alkali Content in Coal

$25.00 $50.00

ASTM D3617/D3617M-07(2015)e1

ASTM D3617/D3617M-07(2015)e1

Standard Practice for Sampling and Analysis of Built-Up Roof Systems During Application

$25.00 $50.00

ASTM E1319-98(2003)

ASTM E1319-98(2003)

Standard Guide for High-Temperature Static Strain Measurement

$29.00 $58.00