- 行业: Mining
- Number of terms: 33118
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- Company Profile:
The U.S. Bureau of Mines (USBM) was the primary United States Government agency conducting scientific research and disseminating information on the extraction, processing, use, and conservation of mineral resources.
Founded on May 16, 1910, through the Organic Act (Public Law 179), USBM's missions ...
The production of steel in a reverberatory furnace by oxidation of the impurities by oxides added (either the rust on scrap, mill scale, or pure ores). It may be conducted on either acid or basic lining.
Industry:Mining
The products obtained from coal by destructive distillation and other processes.
Industry:Mining
The progressive change in composition of the liquid fraction of a magma as a result of the crystallization of mineral phases that differ in composition from the magma.
Industry:Mining
The progressive compacting of metal powders by the use of a rolling mill.
Industry:Mining
The proofing of stone dust to prevent the particles from caking or becoming sticky in humid atmospheres. Waterproofing is considered essential if stone-dust barriers are to operate effectively at humidities above 85%.
Industry:Mining
The property exhibited by some asymmetrical crystalline materials which when subjected to strain in suitable directions develop electric polarization proportional to the strain. Inverse piezoelectricity is the effect in which mechanical strain is produced in certain asymmetrical crystalline materials when subjected to an external electric field; the strain is proportional to the electric field. Quartz is an industrially important example.
Industry:Mining
The property in a high explosive that permits it to be exploded by a shock. The more insensitive an explosive is, the stronger detonator it requires to develop the full strength.
Industry:Mining
The property of a chemical compound to crystallize in either of two different crystal structures, e.g., CaCO<sub>3</sub>as trigonal calcite and as orthorhombic aragonite. Noun: dimorph. Adj: dimorphic. Compare: trimorphism; polymorphism.
Industry:Mining
The property of a chemical compound to crystallize in one of three different crystal structures. Compare: dimorphism; polymorphism.
Industry:Mining
