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Vickers diamond indenters

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Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003059
EISBN: 978-1-62708-200-6
... Abstract This article provides crystallographic and engineering data for single oxide ceramics, zirconia, silicates, mullite, spinels, perovskites, borides, carbides, silicon carbide, boron carbide, tungsten carbide, silicon-nitride ceramics, diamond, and graphite. It includes data on crystal...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001320
EISBN: 978-1-62708-170-2
..., i Σ l i , in a P vs. i Σ l i plot obtained in indentation tests. Source: Ref 44 Table 2 Typical properties of cermets Composition Vickers hardness, kg/mm 2 Modulus of rupture, MPa Fracture toughness K Ic , MPa m Young's modulus, GPa (Ti,Mo/W...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0004043
EISBN: 978-1-62708-185-6
... Brinell hardness numbers for steel Brinell indentation diam, mm Brinell hardness number (a) 3000 kgf load, 10 mm ball (a) Vickers hardness No. Rockwell hardness No. Rockwell superficial hardness No., diamond indenter Knoop hardness No., 500 gf load and greater Scleroscope hardness No...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001297
EISBN: 978-1-62708-170-2
... many aspects the well-known hardness measuring techniques, such as the Vickers and Brinell hardness tests. However, in the “nanoindentation” technique, the indentations extend only to extremely shallow depths, often as low as nanometers. A hard indenter, usually an accurately ground diamond, is...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006761
EISBN: 978-1-62708-295-2
... definite shape is pressed into the material to be tested, the load removed, the diagonals of the resulting indentation measured, and the hardness number calculated by dividing the load by the surface area of indentation. The principal difference is that the Vickers test uses a pyramid-shaped diamond...
Book Chapter

Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003241
EISBN: 978-1-62708-199-3
... pyramid ( Fig. 8 ) geometry that would produce hardness numbers nearly identical to Brinell numbers within the range of both. This decision was very wise, as it made the Vickers test very easy to adopt. Fig. 8 Schematic representation of the square-base pyramidal diamond indenter used in a Vickers...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001237
EISBN: 978-1-62708-170-2
... fracture toughness data can be determined. Hardness is defined as the resistance to penetration by an indenter, and the Knoop and Vickers measurements are the most common. A Knoop hardness number (HK) is obtained by: HK = P / A p = 14.229   P / d 2 where P is the load...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006757
EISBN: 978-1-62708-295-2
... ” dealing with ceramic materials, as well as the various procedures previously outlined for chemical analysis and characterization of materials. The presence of distortions or plastic deformation in a component can indicate the direction of loading that was applied. The shape of indentations can also...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.9781627082952
EISBN: 978-1-62708-295-2
Series: ASM Handbook
Volume: 8
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.hb.v08.9781627081764
EISBN: 978-1-62708-176-4
Book Chapter

Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006790
EISBN: 978-1-62708-295-2
... from a worn surface. The simplest model of abrasive wear is one in which rigidly supported hard particles indent and are forced across the surface of the wear material. Depending on the properties of the abrasive and wear materials, one of several wear mechanisms ( Fig. 4 ) may occur ( Ref 7 , 10...
Series: ASM Handbook
Volume: 5A
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.hb.v05a.9781627081719
EISBN: 978-1-62708-171-9
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0009008
EISBN: 978-1-62708-185-6
... 3 mm (0.12 in.) apart with a carbide-tipped height gage. Four gage points are indented at midheight of the cylindrical specimen with a Vickers or diamond brale hardness indenter. Fig. 3 Grids for strain measurements on upset cylinders Scribed lines or hardness indentations should...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003057
EISBN: 978-1-62708-200-6
... guidelines for microstructural analysis of ceramics. Table 6 Preparation guidelines for microstructural analysis of ceramics Preparation stage Purpose Abrasive bonding Abrasive surface Diamond abrasive size Sectioning Obtain a representative section Fixed Metal-bonded wheel Material...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0006515
EISBN: 978-1-62708-200-6
... high performance HPLC high-performance liquid chromatography HPSN hot-pressed silicon nitride HR Rockwell hardness (requires a scale designation, such as HRC for Rockwell C hardness) H-SB-BL hydrogenated styrene-butadiene block copolymers HV Vickers hardness...
Series: ASM Handbook
Volume: 10
Publisher: ASM International
Published: 15 December 2019
DOI: 10.31399/asm.hb.v10.a0006649
EISBN: 978-1-62708-213-6
... releases the stresses and minimizes the carbon and oxygen content, so that the iron powder softens. To measure particle hardness, indentation hardness tests, such as the Vickers microhardness (MHV) test, can be used. Under an optical measurement system, a pyramidal-pointed diamond is impressed into the...
Series: ASM Handbook
Volume: 10
Publisher: ASM International
Published: 15 December 2019
DOI: 10.31399/asm.hb.v10.a0006671
EISBN: 978-1-62708-213-6
... shows the resistance of the ceramic to catastrophic failure. A ceramic can be indented with either a Knoop or Vickers shaped diamond indenter and the indentation size measured to give a hardness value. Hardness is related to properties such as wear resistance, which is often measured as the material...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001243
EISBN: 978-1-62708-170-2
... distorts the base metal and is influenced by it, which usually results in low hardness readings. The most reliable and most widely accepted hardness values are those obtained with the Vickers 136 diamond pyramid indenter or the Knoop indenter. With these, the hardness test must be made on a carefully...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003063
EISBN: 978-1-62708-200-6
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003061
EISBN: 978-1-62708-200-6
... either metal or plastic/fiberglass composite strips. Then diamond grinding and finishing machines were designed and built to achieve the required surface finish. These machines are also capable of maintaining the extreme flatness and tolerance over the whole width demanded by the high-speed papermaking...