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Luting agent. This image taken from the Dental Cosmos shows a box of bottles containing dental cement which was used to lute dental crowns, bridges and inlays. It was produced by the L.D. Caulk Company in the early 1900s. A luting agent is a dental cement connecting the underlying tooth structure to a fixed prosthesis.
J-B Weld is a two-part epoxy adhesive (or filler) that can withstand high-temperature environments. J-B Weld can be used to bond surfaces made from metal, porcelain, ceramic, glass, marble, PVC, ABS, concrete, fiberglass, wood, fabric, or paper. [7][8] Alcohol should be avoided when cleaning surfaces, as it can degrade the bond. [9] J-B Weld is ...
The flame temperature of pure acetone is 1980 °C. [44] Like most ketones, acetone exhibits the keto–enol tautomerism in which the nominal keto structure (CH 3) 2 C=O of acetone itself is in equilibrium with the enol isomer (CH 3)C(OH)=(CH 2) (prop-1-en-2-ol). In acetone vapor at ambient temperature, only 2.4 × 10 −7 % of the molecules are ...
ICD-9-CM. 23.41. MeSH. D003442. [edit on Wikidata] In dentistry, a crown or a dental cap is a type of dental restoration that completely caps or encircles a tooth or dental implant. A crown may be needed when a large dental cavity threatens the health of a tooth. Some dentists will also finish root canal treatment by covering the exposed tooth ...
Thermal barrier coatings (TBCs) are advanced materials systems usually applied to metallic surfaces on parts operating at elevated temperatures, such as gas turbine combustors and turbines, and in automotive exhaust heat management. These 100 μm to 2 mm thick coatings of thermally insulating materials serve to insulate components from large ...
Adhesive bonding is a joining technique used in the manufacture and repair of a wide range of products. Along with welding and soldering, adhesive bonding is one of the basic joining processes. In this technique, components are bonded together using adhesives. The broad range of types of adhesives available allows numerous materials to be ...
Pressure-sensitive adhesive (PSA, self-adhesive, self-stick adhesive) is a type of nonreactive adhesive which forms a bond when pressure is applied to bond the adhesive with a surface. No solvent, water, or heat is needed to activate the adhesive. It is used in pressure-sensitive tapes, labels, glue dots, stickers, sticky note pads, automobile ...
Acetylene was discovered in 1836 by Edmund Davy, who identified it as a "new carburet of hydrogen". [12][13] It was an accidental discovery while attempting to isolate potassium metal. By heating potassium carbonate with carbon at very high temperatures, he produced a residue of what is now known as potassium carbide, (K 2 C 2), which reacted ...