Potter s clay

Letten, m. potter s clay, loam, -nudel,/. (Expl.) clay roll (for tamping), -schlamin, m. clay slurry, slip. 

Topfer-erde, /. potter s earth, potter s clay, -erz, n. potter s ore, alquifou. -farbe, /. pottery color, ceramic color, -geschirr, >gut,... 

Secondary clay, also known as sedimentary clay, transported clay, or potter s clay, is a mixture of clay and nonclay particles. After it is formed, much clay is... 

The term ceramics comes from the Greek keramikos, which means potter s clay or burnt stuff. While traditional ceramics were often based on natural clays, today s ceramics are largely synthetic materials. Depending on which ceramic and which definition is to be applied, ceramics have been described as inorganic ionic materials and as inorganic covalent (polymeric) materials. In fact, many ceramics contain both covalent and ionic bonds and can thus be considered to be or not to be (shades of Shakespeare) polymeric materials. Many of the new ceramics, such as the boron nitriles and the silicon carbides, are polymeric without containing any ionic bonds. 

The common potter s clays in England are found in layers or strata lying over each other, each stratum possessing some distinctive property which fits it for a peculiar purpose. That-which is called the sandy stiff, or ball-clay, is the upper layer, and from the considerable quantity of silica it contaios is used for making salt-glazed ware. On analysis this clay, dried at 212°, will be found to yield —-... 

Ceramics derives its name from the Greek word keramos (potter s clay). Ceramics or potter s clay has been used since prehistoric times to make a variety of objects. 

Out of which kind of potter s clay they (the Alchemists) made their Athanor, is their secret Clay or loam, that is namely, also the mysterious basic material, out of which, in paradise, the body of Adam was made. In the Bible, it was called "Bedellion" (a fragrant resin or gum). 

Potter s clay, earth A clay fairly free from Iron,used In making pottery. Poultice 5016 A hot. soft, moist mass, as of mustard, applied to a sore part of the body.. ... 

Plasticizer is the component of a binder that keeps it soft or pliable it improves the rheological properties. Green is a ceramic before it is fired. Brown, white, or gray potter s clays are well known green ceramics. 

Ceramic s9- ra-mik, esp Brit. ko- [Gr kera-mikos, ff. keramos potter s clay, pottery] (1850) adj. Technology of producing fired clay and porcelain articles, their glazes, pigments, and modifiers. 

Dobereiner continued his research with the catalytic properties of platinum. Actually Humphry Davy had discovered the phenomenon 6 years ago, heating a fine platinum wire above a coal gas flame. Davy compared copper, silver, gold, palladium, and iron in this effect, and found that only Pt and Pd initiated exothermic burning he was thus the first to focus on selectivity, a matter of some importance in this book. Dobereiner actually made a supported catalyst (a mainstay of industrial catalysis and automotive catalytic converters today) by shaping small balls of potter s clay impregnated with platinum. 

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