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Nickel titanium, also known as nitinol, is a metal alloy of nickel and titanium, where the two elements are present in roughly equal atomic percentages.Different alloys are named according to the weight percentage of nickel; e.g., nitinol 55 and nitinol 60.
Naturally occurring titanium is composed of five stable isotopes: 46 Ti, 47 Ti, 48 Ti, 49 Ti, and 50 Ti, with 48 Ti being the most abundant (73.8% natural abundance). At least 21 radioisotopes have been characterized, the most stable of which are 44 Ti with a half-life of 63 years; 45 Ti, 184.8 minutes; 51 Ti, 5.76 minutes; and 52 Ti, 1.7 minutes.
The main GCP phase is γ'. Almost all superalloys are Ni-based because of this phase. γ' is an ordered L1 2 (pronounced L-one-two), which means it has a certain atom on the face of the unit cell, and a certain atom on the corners of the unit cell. Ni-based superalloys usually present Ni on the faces and Ti or Al on the corners.
The periodic table, also known as the periodic table of the elements, is an ordered arrangement of the chemical elements into rows ("periods") and columns ("groups"). It is an icon of chemistry and is widely used in physics and other sciences.
It is a synthesis of physical sciences such as chemistry, solid mechanics, solid state physics, and materials science. Materials physics is considered a subset of condensed matter physics and applies fundamental condensed matter concepts to complex multiphase media, including materials of technological interest. Current fields that materials ...
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Ni(III) can be stabilized by σ-donor ligands such as thiols and organophosphines. [44] Ni(III) occurs in nickel oxide hydroxide, which is used as the cathode in many rechargeable batteries, including nickel–cadmium, nickel–iron, nickel–hydrogen, and nickel–metal hydride, and used by certain manufacturers in Li-ion batteries. [51]
Yolanda Saldívar, the woman who was convicted of Selena Quintanilla Pérez's murder, has filed for parole.. Thirty years after the death of the Mexican American singer, Saldívar, 63, filed a ...