Hardness tests - Hutchinson encyclopedia article about Hardness tests Printer Friendly
Dictionary, Encyclopedia and Thesaurus - The Free Dictionary
1,733,884,764 visitors served.
forum mailing list For webmasters
?
New: Language forums
Dictionary/
thesaurus
Medical
dictionary
Legal
dictionary
Financial
dictionary
Acronyms
 
Idioms
Encyclopedia
Wikipedia
encyclopedia
?

hardness
(redirected from Hardness tests)

    Also found in: Dictionary/thesaurus, Medical, Encyclopedia, Wikipedia 0.02 sec.

hardness

The resistance of a material to indentation by various means, such as scratching, abrasion, wear, and drilling. Methods of heat treatment can increase the hardness of metals. A scale of hardness was devised by German–Austrian mineralogist Friedrich Mohs in the 1800s, based upon the hardness of certain minerals from soft talc (Mohs hardness 1) to diamond (10), the hardest of all materials.

Hardness is often measured by the Brinell hardness test. The hardness of water refers to the presence of dissolved minerals that prevent soap lathering and form scum, particularly compounds of calcium and magnesium. Treatment with a water softener may remove or neutralize them.



How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content.
?Page tools
Printer friendly
Cite / link
 Email
Feedback
?Sign in SSL protected
Email:
Password:
Register

? Mentioned in ? References in periodicals archive
 
The Model 1600 Multi-Scale durometer test kit is available for the technician who must perform hardness tests on various types of non-metallic materials.
Multi-Scale durometer by Rubber World
We carried out investigations on the specimens with a variety of techniques, including microscopy, hardness tests, and thermal mechanical analysis (TMA) for softening temperatures and indentation hardness/creep.
Internal stress by Schoff, Clifford K. / JCT CoatingsTech
The two alloys exhibited only average mechanical properties in the impact, flow distance, tensile, dimensional change and hardness tests (Figs.
Discovering zinc alloys for stronger die castings by Goodwin, Frank E. / Modern Casting
More results
 
Hutchinson browser? ? Full browser
 
 
Hutchinson Encyclopedia
?

Disclaimer | Privacy policy | Feedback | Copyright © 2009 Farlex, Inc.
All content on this website, including dictionary, thesaurus, literature, geography, and other reference data is for informational purposes only. This information should not be considered complete, up to date, and is not intended to be used in place of a visit, consultation, or advice of a legal, medical, or any other professional. Terms of Use.