en

Knoop hardness

1

Terminological databases

Materjalitehnika terminibaas

ID 673602 Last modified 13.01.2026
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Domain strength of materials
Knoopi kõvadus
Knoop hardness
Knoop microhardness
  • rombikujulise püramiidindentori (laiuse pikkuse suhe 7:1) katsetatavasse materjali sisse surumise teel määratav mikrokõvadus (vt Knoopi kõvaduskatse, mikrokõvadus)
  • microhardness measured with a Knoop diamond indenter, an elongated rhombus pyramid (see: Knoop hardness test, microhardness)
    Good to know
    • Knoop hardness indenter contains a diamond with a rhombic base, so that the diagonals have a 1:7 size ratio, and included angles at the diamond edge of 130o and 172o30, .
Knoopi kõvadus
Knoop hardness
Knoop microhardness
microhardness

Metroloogia terminibaas

ID 639410 Last modified 21.11.2024
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Domain metrologymeasuring procedurestest technology
mikrokõvadus preferred
Knoopi kõvadus
microhardness preferred
  • rombikujulise püramiidindentori (laiuse pikkuse suhe 7:1) katsetavasse materjali sisse surumise teel määratav kõvadus
  • measure of the hardness of a material, calculated by measuring the indentation produced by a diamond tip that is pressed onto the surface of a sample
  • term "microhardness" has been widely employed in the literature to describe the hardness testing of materials with low applied loads
mikrokõvadus preferred
Usage examples
  • Mikrokõvaduse mõõtmist teostatakse tavaliselt koormustega alla 10 N, mille tulemusel saab seda mõõtmist kasutada väiksemate proovide, õhukeste proovide, kaetud pindade või õhukeste kilede puhul.
Knoopi kõvadus
microhardness preferred

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