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Decoupage or découpage ( / ˌdeɪkuːˈpɑːʒ /; [ 1] French: [dekupaʒ]) is the art of decorating an object by gluing colored paper cutouts onto it in combination with special paint effects, gold leaf, and other decorative elements. Commonly, an object like a small box or an item of furniture is covered by cutouts from magazines or from ...
Water acts as a type of binding agent that allows the pigment to merge with the plaster, and once the plaster sets the painting becomes an integral part of the wall. Materials (chemical make-up) Lime cycle. Fresco chemicals consist of the following: Silicon dioxide (sand) Calcium oxide (quick lime) Dihydrogen oxide (water)
The imprinted image turned out to be wash-resistant, impervious to temperatures of 250 °C (482 °F) and was undamaged by exposure to a range of harsh chemicals, including bisulphite which, without the gelatine, would normally have degraded ferric oxide to the compound ferrous oxide. [129] Instead of painting, it has been suggested that the bas ...
Glass coloring and color marking may be obtained in several ways. by the addition of coloring ions, [ 1][ 2] by precipitation of nanometer-sized colloids (so-called striking glasses[ 1] such as "gold ruby" [ 3] or red "selenium ruby"), [ 2] Ancient Roman enamelled glass, 1st century, Begram Hoard. by colored inclusions (as in milk glass and ...
Aluminium oxide in its powdered form. Al 2 O 3 is an electrical insulator but has a relatively high thermal conductivity ( 30 Wm−1K−1) [ 2] for a ceramic material. Aluminium oxide is insoluble in water. In its most commonly occurring crystalline form, called corundum or α-aluminium oxide, its hardness makes it suitable for use as an ...
The sparkle effect referred to above has its origin in the optimized thickness of all layers in the pigment structure, including the Al 2 O 3 substrate. Analytical investigations show that the thickness range of the aluminum oxide platelets and the resultant pigments can be controlled very precisely. Special effects
Lake pigment. A lake pigment is a pigment made by precipitating a dye with an inert binder, or mordant, usually a metallic salt. Unlike vermilion, ultramarine, and other pigments made from ground minerals, lake pigments are organic. [ 1] Manufacturers and suppliers to artists and industry frequently omit the lake designation in the name.
Cobalt blue is a blue pigment made by sintering cobalt (II) oxide with aluminium (III) oxide (alumina) at 1200 °C. Chemically, cobalt blue pigment is cobalt (II) oxide-aluminium oxide, or cobalt (II) aluminate, CoAl 2 O 4. Cobalt blue is lighter and less intense than the (iron-cyanide based) pigment Prussian blue.