Crystalline neodymium carbonate was prepared by aging amorphous neodymium carbonate, which was formed by the reaction of neodymium chloride and ammonium bicarbonate, at elevated temperature.
以碳酸氢铵作沉淀剂，从氯化钕料液中沉淀钕，经陈化结晶制备碳酸钕。
The investigations of tensile properties of the second generation single crystal superalloy DD6 after long term aging at elevated temperature were presented.
研究了第二代单晶高温合金DD6长期时效后的拉伸性能。
The investigations of tensile properties of the second generation single crystal superalloy DD6 after long term aging at elevated temperature were presented.
研究了第二代单晶高温合金DD6长期时效后的拉伸性能。
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