IHEP OpenIR
Nanosize effects assisted synthesis of the high pressure metastable phase in ZrO2
Li, QJ; Zhang, HF; Liu, R; Liu, B; Li, DM; Zheng, LR; Liu, J; Cui, T; Liu, BB; Zheng LR(郑黎荣); Hu TD(胡天斗)
2016
Source PublicationNANOSCALE
ISSN2040-3364
EISSN2040-3372
Volume8Issue:4Pages:2412-2417
SubtypeArticle
AbstractThe size effects on the high pressure behaviors of monoclinic (MI) ZrO2 nanoparticles were studied using in situ high pressure synchrotron X-ray diffraction (XRD) and X-ray absorption spectroscopy (XAS). A size-dependent phase transition behavior under high pressure was found in nanoscale ZrO2. The normal phase transition sequence of MI-orthorhombic I (OI)-orthorhombic II (OII) occurs in 100-300 nm ZrO2 nanoparticles, while only the transition of MI-OI exists in ultrafine similar to 5 nm ZrO2 nanoparticles up to the highest experimental pressure of similar to 52 GPa. This indicates that the size effects preclude the transition from the OI to the OII phase in similar to 5 nm nanoparticles. Upon decompression, the OII and OI phases are retained down to ambient pressure, respectively. This is the first observation of the pure OI phase ZrO2 under ambient conditions. The bulk moduli of the MI ZrO2 nanoparticles were determined to be B-0 = 192 (7) GPa for the 100-300 nm nanoparticles and B0 = 218 (12) GPa for the similar to 5 nm nanoparticles. We suggest that the significant high surface energy precludes the transition from the OI to the OII phase and the nanosize effects enhance the incompressibility in the ultrafine ZrO2 nanoparticles (similar to 5 nm). Our study indicates that this is a potential way of preparing novel nanomaterials with high pressure structures using nanosize effects.
DOI10.1039/c5nr07503c
Indexed BySCI ; ADS
Language英语
WOS IDWOS:000368860900077
ADS Bibcode2016Nanos...8.2412L
ADS URLhttps://ui.adsabs.harvard.edu/abs/2016Nanos...8.2412L
ADS CITATIONShttps://ui.adsabs.harvard.edu/abs/2016Nanos...8.2412L/citations
Citation statistics
Cited Times:3 [ADS]
Document Type期刊论文
Identifierhttp://ir.ihep.ac.cn/handle/311005/248107
Collection中国科学院高能物理研究所
Recommended Citation
GB/T 7714
Li, QJ,Zhang, HF,Liu, R,et al. Nanosize effects assisted synthesis of the high pressure metastable phase in ZrO2[J]. NANOSCALE,2016,8(4):2412-2417.
APA Li, QJ.,Zhang, HF.,Liu, R.,Liu, B.,Li, DM.,...&胡天斗.(2016).Nanosize effects assisted synthesis of the high pressure metastable phase in ZrO2.NANOSCALE,8(4),2412-2417.
MLA Li, QJ,et al."Nanosize effects assisted synthesis of the high pressure metastable phase in ZrO2".NANOSCALE 8.4(2016):2412-2417.
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