hardness$33806$ - definition. What is hardness$33806$
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%ما هو (من)٪ 1 - تعريف

MEASURE OF HOW RESISTANT SOLID MATTER IS TO VARIOUS KINDS OF PERMANENT SHAPE CHANGE WHEN A FORCE IS APPLIED
Hardness (materials science); Softness; Indent Test; Hardness tests; Dynamic hardness; Rebound hardness; Hardness tester; Absolute hardness; Hardness testing; Surface hardness

Brinell scale         
  • Force diagram
BRINELL SCALE OF HARDNESS
Brinell Hardness Scale; Brinell hardness scale; Brinell hardness test; BHN; Brinell hardness; Brinell number; Brinell
The Brinell scale characterizes the indentation hardness of materials through the scale of penetration of an indenter, loaded on a material test-piece. It is one of several definitions of hardness in materials science.
BHN         
  • Force diagram
BRINELL SCALE OF HARDNESS
Brinell Hardness Scale; Brinell hardness scale; Brinell hardness test; BHN; Brinell hardness; Brinell number; Brinell
Bayerisches Hochschulnetz (Reference: network)
Mohs scale of mineral hardness         
QUALITATIVE ORDINAL SCALE CHARACTERIZING SCRATCH RESISTANCE OF VARIOUS MINERALS
Mohs hardness scale; Mohs Scale; Mohs hardness; Mohs scale of hardness; Mohs' scale of mineral hardness; Hardness scale; Mohs Hardness Scale; Mineral hardness; Moh's scale; Mohs' scale; Moh's Scale; The test for the hardness of minerals; Moh's Scale Of Hardness; Moh's scale of mineral hardness; Mohs's scale of mineral hardness; Mohs Scale of Mineral Hardness; Moh scale; Mohn hardness scale; Moh hardness scale; Mohs scale of mineral hardness
The Mohs scale of mineral hardness () is a qualitative ordinal scale, from 1 to 10, characterizing scratch resistance of various minerals through the ability of harder material to scratch softer material.

ويكيبيديا

Hardness

In materials science, hardness (antonym: softness) is a measure of the resistance to localized plastic deformation induced by either mechanical indentation or abrasion. In general, different materials differ in their hardness; for example hard metals such as titanium and beryllium are harder than soft metals such as sodium and metallic tin, or wood and common plastics. Macroscopic hardness is generally characterized by strong intermolecular bonds, but the behavior of solid materials under force is complex; therefore, hardness can be measured in different ways, such as scratch hardness, indentation hardness, and rebound hardness. Hardness is dependent on ductility, elastic stiffness, plasticity, strain, strength, toughness, viscoelasticity, and viscosity. Common examples of hard matter are ceramics, concrete, certain metals, and superhard materials, which can be contrasted with soft matter.