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  2. Single crystal - Wikipedia

    en.wikipedia.org/wiki/Single_crystal

    A single-crystal quartz bar grown by the hydrothermal method. In the case of metal single crystals, fabrication techniques also include epitaxy and abnormal grain growth in solids. [10] Epitaxy is used to deposit very thin (micrometer to nanometer scale) layers of the same or different materials on the surface of an existing single crystal. [11]

  3. Investment casting - Wikipedia

    en.wikipedia.org/wiki/Investment_casting

    Investment casting is used in the aerospace and power generation industries to produce turbine blades with complex shapes or cooling systems. [14] Blades produced by investment casting can include single-crystal (SX), directionally solidified (DS), or conventional equiaxed blades.

  4. Directional solidification - Wikipedia

    en.wikipedia.org/wiki/Directional_solidification

    Directional solidification is the preferred technique for casting high temperature nickel-based superalloys that are used in turbine engines of aircraft. Some microstructural problems such as coarse dendritic structure, long dendrite side branches, and porosity hinder the full potential of single crystal ni-based alloys. [6]

  5. Superalloy - Wikipedia

    en.wikipedia.org/wiki/Superalloy

    Single crystal (SX) superalloys have wide application in the high-pressure turbine section of aero- and industrial gas turbine engines due to the unique combination of properties and performance. Since introduction of single crystal casting technology, SX alloy development has focused on increased temperature capability, and major improvements ...

  6. Ingot - Wikipedia

    en.wikipedia.org/wiki/Ingot

    Single crystal ingots of metal are produced in similar fashion to that used to produce high purity semiconductor ingots, [3] i.e. by vacuum induction refining. Single crystal ingots of engineering metals are of interest due to their very high strength due to lack of grain boundaries .

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  8. The Best High-Yield Dividend ETF to Invest $2,000 in Right Now

    www.aol.com/best-high-yield-dividend-etf...

    JEPQ data by YCharts.. Long-term dividend yields. The monthly payouts added up to $5.38 per share over the last year, or a 10.7% yield against the current share price of approximately $58.

  9. Metal casting - Wikipedia

    en.wikipedia.org/wiki/Metal_casting

    Permanent mold casting is a metal casting process that employs reusable molds ("permanent molds"), usually made from metal. The most common process uses gravity to fill the mold. However, gas pressure or a vacuum are also used. A variation on the typical gravity casting process, called slush casting, produces hollow castings.