Hardness of dislocations, a particular metal's hardness can be controlled. Although seemingly counter-intuitive, as the density of dislocations increases, there are more intersections created and consequently more anchor points. Similarly, as more interstitial atoms are added, more pinning points that impede the movements of dislocations are formed. As a result, the more anchor points added, the harder the material will become. Hardness Hardness is a measure of the resistance to localized plastic deformation induced by either mechanical indentation or abrasion. Some materials (e.g. metals) are harder than others (e.g. plastics, wood). Macroscopic hardness is generally characterized by strong intermolecular bonds, but
Janka, Contai Janka, Contai Janka is a village, in Khejuri II CD Block in Contai subdivision of Purba Medinipur district in the state of West Bengal, India. Khejuri police station is located at Janka. The headquarters of Khejuri II CD Block are located at Janka. As per 2011 Census of India Janka had a total population of 2,804 of which 1,452 (52%) were males and 1,352 (48%) were females. Population below 6 years was 347. The total number of literates in Janka was 2,214 (90.11% of the population over 6 years). Khejuri police station is located at Janka. It has jurisdiction over