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ASTM C1326-13(2018)
Standard Test Method for Knoop Indentation Hardness of Advanced Ceramics- 발행일 : 2018-01-01
- 발행기관 : ASTM
상세정보
| 분야 | 15.01 : 내화물; 활성카본; 세라믹 |
|---|---|
| 적용범위 | 1.1 This test method covers the determination of the Knoop indentation hardness of advanced ceramics. In this test, a pointed, rhombic-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 long diagonal of the permanent indentation is measured using a light microscope. The length of the long diagonal and the applied force are used to calculate the Knoop hardness which represents the material’s resistance to penetration by the Knoop indenter. 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 Knoop hardness be reported either in units of GPa or as a dimensionless Knoop hardness number. 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. |
| 국제분류(ICS)코드 | 81.060.30 : 고급 세라믹 |
| 페이지수 | 10 |
| Edition | 13(2018) |
이력정보
| No. | 표준번호 | 표준명 | 발행일 | 상태 |
|---|---|---|---|---|
| 1 | ASTM C1326-13(2023)상세보기 | Standard Test Method for Knoop Indentation Hardness of Advanced Ceramics | 2023-01-01 | 표준 |
| 2 | ASTM C1326-13(2018)상세보기 | Standard Test Method for Knoop Indentation Hardness of Advanced Ceramics | 2018-01-01 | 구판 |
| 3 | ASTM C1326-13상세보기 | Standard Test Method for Knoop Indentation Hardness of Advanced Ceramics | 2013-08-01 | 구판 |
| 4 | ASTM C1326-08상세보기 | Standard Test Method for Knoop Indentation Hardness of Advanced Ceramics | 2008-08-01 | 구판 |
| 5 | ASTM C1326-08e1상세보기 | Standard Test Method for Knoop Indentation Hardness of Advanced Ceramics | 2008-08-01 | 구판 |
| 6 | ASTM C1326-03상세보기 | Standard Test Method for Knoop Indentation Hardness of Advanced Ceramics | 2003-10-01 | 구판 |
| 7 | ASTM C1326-99상세보기 | Standard Test Method for Knoop Indentation Hardness of Advanced Ceramics | 1999-01-10 | 구판 |
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