Comparison of conventional Knoop and Vickers hardness of ceramic materials

被引：70

作者：

Ben Ghorbal, Ghailen ^{[1
]}

Tricoteaux, Arnaud ^{[1
]}

Thuault, Anthony ^{[1
]}

Louis, Ghislain ^{[2
]}

Chicot, Didier ^{[3
]}

机构：

[1] Univ Valenciennes & Hainaut Cambresis, LMCPA, Blvd Charles de Gaulle, F-59600 Maubeuge, France

[2] Ecole Mines Douai, LGCgE, F-59500 Douai, France

[3] Univ Lille, FRE 3723, LML, F-59000 Lille, France

来源：

JOURNAL OF THE EUROPEAN CERAMIC SOCIETY | 2017年 / 37卷 / 06期

关键词：

Indentation; Knoop; Vickers; Mechanical properties; Ceramics; ADVANCED TECHNICAL CERAMICS; LOW-LOAD HARDNESS; INSTRUMENTED INDENTATION; NANOINDENTATION; INDENTER; TESTS;

D O I：

10.1016/j.jeurceramsoc.2017.02.014

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Ceramics generally have a lower Knoop than Vickers hardness. This difference is due to the elastic recovery occurring around a Knoop indentation and the difference in representative area considered to calculate the hardness value. Conventional hardness tests with Knoop and Vickers indenters were performed in order to show how Knoop hardness test can give the same hardness number obtained by Vickers hardness test. This is obtained when Knoop hardness number is calculated based on the residual plastically deformed area whether projected or true. Complementary hardness data obtained from the literature were used in this work in order to validate the method proposed in this work. A revision of the well-known relation of Marshall is proposed in order to determine the elastic modulus by means of one Knoop hardness test when the Vickers hardness is unknown. (C) 2017 Elsevier Ltd. All rights reserved.

引用

页码：2531 / 2535

页数：5

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