porcelain
porcelain (pôr´s
lin),
[por′sə·lən]
1 a white, translucent, dense ceramic material produced by fusing under high temperature a mixture of feldspar, kaolin, quartz, whiting, and other substances.
2 See dental porcelain.
porcelain (pôr´s
lin),n a material formed by the fusion of feldspar, silica, and other minor ingredients. Most dental porcelains are glasses and are used in the manufacture of artificial teeth, facings, jackets, and occasionally denture bases and inlays.
porcelain, baked,
n See porcelain, dental.
porcelain, dental,
n (baked porcelain, fired porcelain), a fused mixture that is glasslike and more or less transparent. Classification of the type of porcelain employed in inlays and crowns is based on the fusion temperature of the porcelain: high fusing, 2350°F to 2500°F (1287.5°C to 1371°C); medium fusing, 2000°F to 2300°F (1093.5°C to 1260°C); and low fusing, 1600°F to 2000°F (871°C to 1093.5°C).
porcelain, fired,
n See porcelain, dental.
porcelain, synthetic,
n See cement, silicate.
Want to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit the webmaster's page for free fun content.
| ?Page tools | ||
|---|---|---|
|