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A hard siliceous or calcareous deposit precipitated from mineral springs.
- ‘The pool has a narrow rim of subfossil siliceous sinter that rises up to 50 cm above water level.’
- ‘During 1957, an orange flocculent precipitate containing metal sulphides appeared in the spring pool and became incorporated in the marginal sinter.’
- ‘The spring pool has a rim of grey siliceous sinter up to 2 m wide and 0.5m high.’
2Solid material that has been sintered, especially a mixture of iron ore and other materials prepared for smelting.
- ‘For decades, steelmakers have used highly polluting ovens to turn powdery coal and iron ore into chunks called coke and sinter, which are melted with superheated air to make iron.’
- ‘The increased sinter burden is also expected to enhance the productivity of blast furnaces, effecting a substantial reduction in the cost of sinter production and coke rate.’
- ‘From the beginning of the year, the factory has increased the coke and sinter output 1.2 times the figure at the end of last year by keeping furnaces in good conditions and machines in full-capacity operation.’
- ‘The crew returned, with a train of processed iron ore, hereafter called sinter.’
- ‘This time is was sinter that was shipped to Algoma Steel.’
- ‘Anderson points to new rules for sinter plants, which recover waste products from steel operations.’
Make (a powdered material) coalesce into a solid or porous mass by heating it (and usually also compressing it) without liquefaction.
- ‘The problem of debris from the smashed part interfering with gases that must pass through tiny tubes was solved by sintering a filter into a central gasket.’
- ‘In the feed zone, because of specific rheological behavior, the polymer, either as granules or powder, can be quickly compacted or sintered by pressure and temperature, and can slip into the space between the extruder screw and sleeve.’
- ‘The powders are compacted into preforms, sintered and then forged in the conventional way to produce segregation-free forgings.’
- ‘To create actual products from the trimmings, manufacturers would pulverize them and then sinter the resulting powder into parts, a process that would preserve the nanocrystalline structure.’
- ‘The parts are then placed in a sintering furnace, where any remaining binder is removed and the parts are sintered to their final dimensions.’
- ‘Not only can a high-power microwave oven be used to cook food, it can be harnessed for joining, carburizing, sintering, brazing, nitriding, and annealing metal parts.’
- ‘Instead of sintering a layer by scanning it with a laser beam, his system quickly fuses the whole layer under an oven-like electric or gas heater.’
Late 18th century (as a noun): from German Sinter; compare with cinder.
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