| Thousands of stone hammers, anvils, crucibles, metal objects, and pieces of ancient metallurgical debris were also recovered. |
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| Platinum crucibles are used to melt high-quality optical glass and to grow crystals for computer chips and lasers. |
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| We produce several capacity crucibles and cupels and only use selected virgin materials for production. |
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| We found his crucibles and cupels, ceramics that these people used to test rocks to see if they contained any precious metals. |
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| Having some experience of metal working, he recognised the fragmentary remains as crucibles and clay casting moulds. |
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| An unfinished lead buckle suggests some metalworking was taking place at the site, and there are also crucibles. |
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| Evidence for smithing includes crucibles, and moulds for plain copper-alloy pins. |
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| These holy places are the crucibles of Serbian identity, tradition and history. |
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| These which form a renaissance laboratory include eight hundred relics, including triangular crucibles, shallow scorifiers, bone-ash cupels, aludels, and other artifacts. |
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| Latticed platinum crucibles ensure better contact when studying interaction between the sample and a gas. |
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| From crucibles of molten silicon, ribbons of the stuff are continuously pulled out. |
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| In the 18th century Benjamin Huntsman built new types of furnaces in Sheffield for making highly refined steel in clay vessels called crucibles. |
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| Projects serve as an important ground for experimentation, crucibles of learning, necessary to deal with diversity. |
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| Open aluminum crucibles or crucibles with punched lids are used for most applications. |
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| Rhodium is used in high temperature applications, such as laboratory crucibles. |
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| Graphite crucibles are used in steel-making and in the production of nonferrous and precious metals. |
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| A carousel is available for up to 64 sample and reference crucibles which can be automatically run in any order. |
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| Crystals are also used in key manufacturing equipment, such as quartz crucibles for solar silicon growth. |
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| An 18th century rubbish pit with contents ranging from dissected human skulls to crucibles used in early firework experiments has been excavated in the centre of Oxford. |
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| More successful was his production of ceramic crucibles and fire bricks. |
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| To serve the photovoltaic market, we offer quartz crucibles for smelting silicon slabs, engineered silicon carbide grains for cutting them and fluoropolymer films for encapsulating PV panels. |
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| Glass and ceramics, including laboratory crucibles. |
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| Used by many specialty steelmaking shops and foundries, induction furnaces are cylindrical, open-topped, tiltable refractory crucibles with a water-cooled induction coil installed on the outside, around the side wall. |
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| After removing the crucibles from the oven, they were cooled in a desiccators for about four hours and weighed with the evaporated sample. |
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| By fine-tuning the parameters, they succeeded in cutting the melting cycle down to 45 minutes. They also helped build a thermodynamic model of potential reactions between molten titanium and various kinds of crucibles. |
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| And in a time of international travel and migration, they are certainly crucibles where cultures meet and blend together, synthesising new forms of life. |
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| Large amounts of visible sandlike material were found in the bottom of the crucibles after samples showing high ash content were burned. |
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| In this newly emerging urban civilization, cities are the locus or crucibles, where major social problems are played out daily and magnified, but also locus of most creative change. |
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| Aside from providing crucibles, pottery making taught how to restructure a fire with a deep bed of prepared charcoal to provide a heat superior to that of a simple campfire. |
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| Another carbon form, the graphite, is used for high temperature crucibles, dry cell and light arch electrodes, for pencil tips and as a lubricant. |
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| Molten aluminum is siphoned from the cells into large crucibles. |
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| Especially designed or prepared liquid metal handling systems for molten uranium or uranium alloys, consisting of crucibles and cooling equipment for the crucibles. |
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| One guest scientist from the NMIJ will stay for a total period of one year at the BIPM to set up a high-temperature furnace with fixed-point crucibles to realize melting plateaus. |
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| The crucibles and other parts of this system that come into contact with molten uranium or uranium alloys are made of or protected by materials of suitable corrosion and heat resistance. |
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| For pouring, be sure the crucibles or ladles aren't spalling, eroding, deteriorating or developing too much buildup. |
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| During this process, the crucibles need to be electrically heated. |
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| Steel was known in antiquity, and possibly was produced in bloomeries and crucibles. |
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| Free hydrochloric acid was first formally described in the 16th century by Libavius, who prepared it by heating salt in clay crucibles. |
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| While crucibles have a high graphite content, the volume of crucibles used and then recycled is very small. |
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| The samples were solidified in metallic crucibles, coated with a ceramic layer, both at 1 atmosphere and in vacuum with a remanent pressure of 80 mbar. |
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| A long table was covered with scrolls, skulls, crucibles, crystals, star-charts, geomantic figures, and other appurtenances of a magician's calling. |
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| Down the centuries confraternities have been crucibles of holiness for countless people who have lived in utter simplicity an intense relationship with the Lord. |
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| Eventually, after many experiments, Huntsman was able to make satisfactory cast steel, in clay pot crucibles, each holding about 34 pounds of blistered steel. |
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| The molten steel was then poured into moulds and the crucibles reused. |
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| This is a diffusion process in which wrought iron is packed in crucibles or a hearth with charcoal, then heated to promote diffusion of carbon into the iron to produce steel. |
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| Ancillary rooms for weighing each charge and for the manufacture of the clay crucibles were either attached to the workshop, or located within the cellar complex. |
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| Crucibles used to contain plutonium need to be able to withstand its strongly reducing properties. |
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