CAJ | 학술논문

文章介绍了铒氢化物的热力学特性研究进展，实验测定了铒三氘化物的热解吸谱，建立了热解吸谱峰与晶体精细结构的对应关系，发现并确认了铒氘化物中氘原子占据CaF2型面心立方结构（fcc）八面体间隙（βOct ）和四面体间隙位置（βTet ）时的氘释放峰。采用Redhead模型计算得到了γ＋β相、βOct相和βTet相铒氘化物解吸氘的表观活化能，其值分别为（178.3±3.0）、（204.5±1.2）和（309.2±0.6） kJ/mol。结果显示，相结构对铒氘化物的热稳定性具有显著影响。提出了基于实验热解吸谱和Redhead理论模型来评估升温速率影响金属氢化物热解吸特性的方法，采用该方法可大幅减少实验工作量。
문장개소료이경화물적열역학특성연구진전，실험측정료이삼도화물적열해흡보，건립료열해흡보봉여정체정세결구적대응관계，발현병학인료이도화물중도원자점거CaF2형면심립방결구（fcc）팔면체간극（βOct ）화사면체간극위치（βTet ）시적도석방봉。채용Redhead모형계산득도료γ＋β상、βOct상화βTet상이도화물해흡도적표관활화능，기치분별위（178.3±3.0）、（204.5±1.2）화（309.2±0.6） kJ/mol。결과현시，상결구대이도화물적열은정성구유현저영향。제출료기우실험열해흡보화Redhead이론모형래평고승온속솔영향금속경화물열해흡특성적방법，채용해방법가대폭감소실험공작량。
The investigation progress on the thermodynamic characteristics of erbium hydride was introduced .In order to verify the thermal stability of erbium deuteride ,the thermal desorption spectra ( TDS ) of erbium trideuterie were experimentally menstruated ,and the corresponding relations of fine structure and TDS peaks of erbium deuteride were established . The deuterium release peaks of deuterium located at the octahedral interstice (βOct ) and tetrahedral interstice (βTet ) of face-centered cubic (fcc) framework of the fluorite-type lattice have been especially found .The activation energy of γ+ β,βOct and βTet phases erbium deuteride decomposition were calculated from the Redhead’ s thermal desorption model , and the calculated values are (178.3 ± 3.0 ) , (204.5 ± 1.2) and (309.2 ± 0.6) kJ/mol ,respectively .The results show that phase structure has a significant influence on the thermal stability of erbium deuteride . A novel method to evaluate the impact of heating rate parameter on the thermal desorption characteristics of metal hydride is proposed . It is a method based on the thermal desorption experimental test and theoretical simulation using Redhead’s model .Using this method can greatly reduce the workload of the experiment .