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Gold–aluminium intermetallic. A schematic cross-section of a purple plague in a wire-bond of gold wire on an aluminium pad. (1) Gold wire (2) Purple plague (3) Copper substrate (4) Gap eroded by wire-bond (5) Aluminium contact. Gold–aluminium intermetallic is a type of intermetallic compound of gold and aluminium that usually forms at ...
Tricolor plaque disclosing gel—before and after. Disclosing tablets are chewable tablets that make dental plaque visible. The tablets, sold over the counter in many countries, contain a dye (typically a vegetable dye, such as Phloxine B) that stains the plaque a bright color (typically red or blue). After brushing, one chews a tablet and ...
Colored gold is the name given to any gold that has been treated using techniques to change its natural color. Pure gold is slightly reddish yellow in color, but colored gold can come in a variety of different colors by alloying it with different elements. Colored golds can be classified in three groups:
These are the lists of colors ; List of colors: A–F. List of colors: G–M. List of colors: N–Z. List of colors (alphabetical) List of colors by shade. List of color palettes. List of Crayola crayon colors. List of RAL colours.
CPK coloring. A plastic ball-and-stick model of proline. These models usually comply with CPK coloring. In chemistry, the CPK coloring (for Corey – Pauling – Koltun) is a popular color convention for distinguishing atoms of different chemical elements in molecular models.
Zazzle is an American online marketplace that allows designers and customers to create their own products with independent manufacturers (clothing, posters, etc.), as well as use images from participating companies.
A blue plaque is a permanent sign installed in a public place in the United Kingdom, and certain other countries and territories, to commemorate a link between that location and a famous person, event, or former building on the site, serving as a historical marker. The term is used in the United Kingdom in two senses.
The Purple Heart award is a 1 + 3 ⁄ 8 inches (35 mm) wide purple- and gold-colored heart-shaped brass-alloy medal containing a profile of General George Washington. Above the heart appears a shield of the coat of arms of George Washington (a white shield with two red bars and three red stars in chief) between sprays of green leaves.
Blue gold can be made by alloying with iron, and purple gold can be made by alloying with aluminium. Less commonly, addition of manganese, indium, and other elements can produce more unusual colors of gold for various applications.
In optics, violet is a spectral color (referring to the color of different single wavelengths of light), whereas purple is the color of various combinations of red and blue (or violet) light, some of which humans perceive as similar to violet.