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Nitinol properties are particular to the precise composition of the alloy and its processing. These specifications are typical for commercially available shape memory nitinol alloys 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.
The two most prevalent shape-memory alloys are copper-aluminium-nickel and nickel-titanium (), but SMAs can also be created by alloying zinc, copper, gold and iron.Although iron-based and copper-based SMAs, such as Fe-Mn-Si, Cu-Zn-Al and Cu-Al-Ni, are commercially available and cheaper than NiTi, NiTi-based SMAs are preferable for most applications due to their stability and practicability [1 ...
The field of materials engineering is an important one within aerospace engineering. Its practice is defined by the international standards bodies [1] who maintain standards for the materials and processes involved. [2] Engineers in this field may often have studied for degrees or post-graduate qualifications in it as a speciality. [3]
NiTiNOL 60, or 60 NiTiNOL, is a Nickel Titanium alloy (nominally Ni-40wt% Ti) discovered in the late 1950s by the U. S. Naval Ordnance Laboratory (hence the "NOL" portion of the name NiTiNOL). [1] Depending upon the heat treat history, 60 NiTiNOL has the ability to exhibit either superelastic properties in the hardened state or shape memory ...
In addition to the concerns above, materials for use in spacecraft applications have to cope with radiation damage and high-intensity ultraviolet radiation, thermal loads from solar radiation, radiation cooling of the vehicle in other directions, and heat produced within the spacecraft's systems.
Mechanical engineering for the design of the spacecraft structures and mechanisms, as well as the selection of materials for use in vacuum. These include beams, panels, and deployable appendages or separation devices (to separate from the launch vehicle ).
Initially, the variation of material properties was introduced by means of rows (or columns) of homogeneous elements, leading to a discontinuous step-type variation in the mechanical properties. [14] Later, Santare and Lambros [ 15 ] developed functionally graded finite elements, where the mechanical property variation takes place at the ...
A compound semiconductor is a semiconductor compound composed of chemical elements of at least two different species. These semiconductors form for example in periodic table groups 13–15 (old groups III–V), for example of elements from the Boron group (old group III, boron, aluminium, gallium, indium) and from group 15 (old group V, nitrogen, phosphorus, arsenic, antimony, bismuth).