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  2. Nickel - Wikipedia

    en.wikipedia.org/wiki/Nickel

    Nickel is a silvery-white metal with a slight golden tinge that takes a high polish. It is one of only four elements that are ferromagnetic at or near room temperature; the others are iron, cobalt and gadolinium. Its Curie temperature is 355 °C (671 °F), meaning that bulk nickel is non-magnetic above this temperature.

  3. Speeds of sound of the elements - Wikipedia

    en.wikipedia.org/wiki/Speeds_of_sound_of_the...

    The speed of sound in any chemical element in the fluid phase has one temperature-dependent ... 28 Ni nickel; use: 6040: 3000: 4900: room temperature CRC: 6040: 3000: ...

  4. Curie temperature - Wikipedia

    en.wikipedia.org/wiki/Curie_temperature

    Nickel (Ni) 627 354 669 Gadolinium (Gd) 293.2 [5] 20.1 68.1 ... temperature for a magnetic order phase transition is found to be at zero temperature, ...

  5. Nickel aluminide - Wikipedia

    en.wikipedia.org/wiki/Nickel_aluminide

    Nickel aluminide refers to either of two widely used intermetallic compounds, Ni 3 Al or NiAl, but the term is sometimes used to refer to any nickel–aluminium alloy. These alloys are widely used because of their high strength even at high temperature, low density, corrosion resistance, and ease of production. [ 1 ]

  6. Nickel titanium - Wikipedia

    en.wikipedia.org/wiki/Nickel_titanium

    The reference temperature is usually defined as the room temperature or the human body temperature (37 °C or 99 °F). One often-encountered effect regarding nitinol is the so-called R-phase. The R-phase is another martensitic phase that competes with the martensite phase mentioned above.

  7. Periodic table (crystal structure) - Wikipedia

    en.wikipedia.org/wiki/Periodic_table_(crystal...

    6 nearest neighbours at 234 K and 1 atm (it is liquid at room temperature and thus has no crystal structure at ambient conditions!) Identical symmetry to the β-Po structure, distinguished based on details about the basis vectors of its unit cell.

  8. Intermetallic - Wikipedia

    en.wikipedia.org/wiki/Intermetallic

    Intermetallic compounds are generally brittle at room temperature and have high melting points. ... which is the hardening phase in the familiar nickel-base super ...

  9. Precipitation hardening - Wikipedia

    en.wikipedia.org/wiki/Precipitation_hardening

    In superalloys, it is known to cause yield strength anomaly providing excellent high-temperature strength. Precipitation hardening relies on changes in solid solubility with temperature to produce fine particles of an impurity phase, which impede the movement of dislocations, or defects in a crystal's lattice.