金属铈同素异构相变行为的DSC研究

Journal of the Chinese Society of Rare Earths(2018)

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Abstract
以快速冷却方法制备的细晶金属铈(Ce)为研究对象,采用DSC技术探索100~600 K温度范围内连续降温和升温过程中,Ce的同素异构相变行为.结果表明,Ce在从300~100 K范围内的连续降温过程中依次发生y-β和γ→α相变,相变温度分别是280和128.5 K;从100 ~ 300 K温度范围内连续升温过程中同时发生α→β和α→y相变,相变区间从124.3~ 199.5 K;进一步升高温度至518.4 K,发生异常的γ→β相变.
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Key words
allotropic transformation,DSC,cerium
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