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 Kulcsár the next year, she won a prize in the National Chamber Music Competition. Kulcsár works mainly with singers. She accompanied Marianna Sipos in the ARD International Music Competition in 2012. Founding member of the Moltopera Company since 2011. She accompanied among others Moltopera's production Don Giovanni, Magic Flute (in the Palace of Arts), Fledermaus, La Bohéme, Cavalleria Rusticana, Menotti's: The telephone, L'enfant et les sortiléges (in the National Theater of Pécs), and "How to survive an opera recital?" (in the Sziget Festival). Janka Kulcsár Janka Kulcsár (born 8 April 1985) is a Hungarian pianist and répétiteur, and a founding member