(四) 氮化法(Nitriding) 将工作件置于密闭的阿姆尼亚气体中, 加热至51 0℃左右, 经过相当时间后, 使阿姆尼亚气的氮与 金属化合成为硬度极高的氮化物。
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目前,硅粉直接氮化法是制备氮化硅应用最普遍的方法。
There are two methods for synthesis of the fluoroporphyrins: direct and indirect fluorination.
采用氨气还原氮化法,在流动的氨气氛下原位反应生成氮化钛,同时保持四方相氧化锆含量和结构不变。
Titanium nitride was synthesized by ammonia reduction and nitridation under flowing ammonia atmosphere while the content and tetragonal phase structure of zirconia was unchanged.
采用改进的升华法在氮气环境下制备氮化铝单晶体。
AlN crystals were grown by modified sandwich sublimation method in nitrogen atmosphere.
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