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Ceramic testing
3-point bending test on ceramic according to ASTM C674
Ceramic testing
Testing machine inspekt solo for testing ceramics

Bending test on ceramics according to ASTM C674

Universal testing machine inspekt solo 2,5 kN with 3-point bending device TH 238

The ASTM C674 standard describes a test method that measures the flexural strength of ceramic materials under precisely defined conditions. Flexural strength is a critical parameter that provides information about a material's resistance to fracture under bending load. This property is particularly important for materials that are used in stress-intensive environments.

The bending test can be carried out using a three-point or four-point bending device:

  • Three-point bending test: the specimen is placed on two supports and the load is applied in the centre of the specimen.
  • Four-point bending test: The test specimen is placed on two supports and the load is applied evenly over two points that are evenly spaced between the supports.

The load is applied to the specimen at a constant speed until the specimen breaks. ASTM C674 specifies the exact test speed and the conditions under which the test is to be performed to ensure that the results are comparable.

Typical areas of application

Ceramic materials, which must have high flexural strength, are used in aerospace, medical technology and electrical engineering, among others.

  • Aerospace: High flexural strength is required to ensure the structural integrity of components during flight.
  • Electronics industry: The flexural strength of ceramic substrates is important here in order to avoid cracks and fractures during the manufacture and operation of electronic components.

Testing system for testing ceramics to ASTM C674

The inspekt solo 2.5 kN universal testing machine with medium height from Hegewald & Peschke is suitable for bending tests on ceramics in accordance with ASTM C674. The testing machine is used for 3-point bending tests during production. For this purpose, the testing system is equipped with a TH 238 3-point bending device with displacement sensor.

During the test, the properties of the ceramics are characterised both before and after the firing process.

The LabMaster material testing software material testing software is used for efficient test execution and evaluation.

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