Niti

Niti can refer to:

  • Nickel titanium alloy or Nitinol
  • Shape memory alloy
  • NITI, a Bulgarian UAV
  • Niti, (Sanskrit: नीति), ethical theories in Hinduism
  • NITI Aayog, NITI Aayog (India)
  • Nickel titanium

    Nickel titanium, also known as nitinol (part of shape memory alloy), is a metal alloy of nickel and titanium, where the two elements are present in roughly equal atomic percentages e.g. Nitinol 55, Nitinol 60.

    Nitinol alloys exhibit two closely related and unique properties: shape memory effect (SME) and superelasticity (SE) (also called pseudoelasticity (PE)). Shape memory is the ability of nitinol to undergo deformation at one temperature, then recover its original, undeformed shape upon heating above its "transformation temperature". Superelasticity occurs at a narrow temperature range just above its transformation temperature; in this case, no heating is necessary to cause the undeformed shape to recover, and the material exhibits enormous elasticity, some 10-30 times that of ordinary metal.

    History

    The term nitinol is derived from its composition and its place of discovery: (Nickel Titanium-Naval Ordnance Laboratory). William J. Buehler along with Frederick Wang, discovered its properties during research at the Naval Ordnance Laboratory in 1959. William Buehler was attempting to make a better missile nose cone, which could resist fatigue, heat and the force of impact. Having found that a 1:1 alloy of nickel and titanium could do the job, in 1961 he presented a sample at a laboratory management meeting. The sample, folded up like an accordion, was passed around and flexed by the participants. One of them applied heat from his pipe lighter to the sample and, to everyone's surprise, the accordion-shaped strip stretched and took its previous shape.

    Armstechno NITI

    NITI (Bulgarian: НИТИ) is a very light-weight, stealthy remote-controlled Bulgarian unmanned aerial vehicle (UAV). It has been designed and constructed in 2006 by Armstechno Co. It mounts a color surveillance camera, a thermal vision camera, and has an option for adding chemical and radioactive contamination dosimeters. Its main tasks are air surveillance of contaminated areas, regions with possible terrorist group activity, artillery correction or observation of natural disaster-stricken areas. NITI has a maximum fuel capacity of 38 l. It also has a programmable autopilot system and GPS system.

    In 2011, NITI was evaluated by the Ministry of the Interior (MI) of Bulgaria, but the design was rejected due to numerous defects, an unreliable design and the inability of the aircraft to perform its tasks. The CEO of Armstechno Co. blamed the unsatisfactory performance of its UAVs on the poor training of MI operators.

    Specifications

    General characteristics

  • Crew: 0
  • Length: 3.0 m (9,8 ft)
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    Latest News for: niti

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    Hindustan Times 21 Mar 2025
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    MENA FN 18 Mar 2025
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    MENA FN 17 Mar 2025
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    International Business Times 17 Mar 2025
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