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首页> 外文期刊>Advances in Applied Ceramics >Influence of passivation pretreatment in common acid and alkali on oxidation behaviour of Ti3SiC2 at 500 degrees C
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Influence of passivation pretreatment in common acid and alkali on oxidation behaviour of Ti3SiC2 at 500 degrees C

机译:普通酸和碱中的钝化预处理对Ti3SiC2在500℃下氧化行为的影响

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摘要

Passivation treatments in NaOH, H2SO4 and HCl were conducted in order to improve the oxidation resistance of Ti3SiC2 at 500 degrees C. The oxidation resistance of Ti3SiC2 passivated in NaOH was the greatest of any treatments due to the formation of an amorphous film during passivation treatment, which became dense, crystalline and seemingly highly protective during oxidation. The detrimental phase transformation of TiO2 was limited by doping with SiO2. Different levels of corrosion happened during passivation treatment in H2SO4 and HCl, which is harmful to oxidation resistance.
机译:为了在500摄氏度下提高Ti3SiC2的抗氧化性,在NaOH,H2SO4和HCl中进行了钝化处理。由于在钝化处理过程中形成了非晶膜,在NaOH中钝化的Ti3SiC2的抗氧化性是所有处理中最大的,它在氧化过程中变得致密,结晶且看似高度保护。 TiO2的有害相变受到掺杂SiO2的限制。在H2SO4和HCl中进行钝化处理时会发生不同程度的腐蚀,这对抗氧化性有害。

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