ASTM International - ASTM C1327-15(2019)

Standard Test Method for Vickers Indentation Hardness of Advanced Ceramics

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Organization: ASTM International
Publication Date: 1 July 2019
Status: active
Page Count: 10
ICS Code (Advanced ceramics): 81.060.30
significance And Use:

5.1 For advanced ceramics, Vickers indenters are used to create indentations whose surface-projected diagonals are measured with optical microscopes. The Vickers indenter creates a square... View More

scope:

1.1 This test method covers the determination of the Vickers indentation hardness of advanced ceramics. In this test, a pointed, square-based, pyramidal diamond indenter of prescribed shape is pressed into the surface of a ceramic with a predetermined force to produce a relatively small, permanent indentation. The surface projection of the two diagonals of the permanent indentation is measured using a light microscope. The average diagonal size and the applied force are used to calculate the Vickers hardness, which represents the material's resistance to penetration by the Vickers indenter. Hardness is computed as the ratio of the force to the contact surface area.

1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

1.3 Units-When Knoop and Vickers hardness tests were developed, the force levels were specified in units of grams-force (gf) and kilograms-force (kgf). This standard specifies the units of force and length in the International System of Units (SI); that is, force in newtons (N) and length in mm or μm. However, because of the historical precedent and continued common usage, force values in gf and kgf units are occasionally provided for information. This test method specifies that Vickers hardness be reported either in units of GPa, or a dimensionless Vickers hardness number that has implied units of kgf/mm2.

1.4 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.

1.5 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.

Document History

ASTM C1327-15(2019)
July 1, 2019
Standard Test Method for Vickers Indentation Hardness of Advanced Ceramics
5.1 For advanced ceramics, Vickers indenters are used to create indentations whose surface-projected diagonals are measured with optical microscopes. The Vickers indenter creates a square impression...
January 1, 2015
Standard Test Method for Vickers Indentation Hardness of Advanced Ceramics
5.1 For advanced ceramics, Vickers indenters are used to create indentations whose surface-projected diagonals are measured with optical microscopes. The Vickers indenter creates a square impression...
August 1, 2008
Standard Test Method for Vickers Indentation Hardness of Advanced Ceramics
For advanced ceramics, Vickers indenters are used to create indentations whose surface-projected diagonals are measured with optical microscopes. The Vickers indenter creates a square impression from...
October 1, 2003
Standard Test Method for Vickers Indentation Hardness of Advanced Ceramics
1.1 This test method covers the determination of the Vickers indentation hardness of advanced ceramics. 1.2 This standard does not purport to address all of the safety concerns, if any, associated...
January 10, 1999
Standard Test Method for Vickers Indentation Hardness of Advanced Ceramics
1.1 This test method covers the determination of the Vickers indentation hardness of advanced ceramics. 1.2 This standard does not purport to address all of the safety concerns, if any, associated...
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