Document Detail


Pressure-induced amorphization in mayenite (12CaO[middle dot]7Al(2)O(3)).
MedLine Citation:
PMID:  21913774     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
We report a joint experimental and theoretical study on high pressure structures of nanoporous mayenite (12CaO[middle dot]7Al(2)O(3)). A pressure-induced amorphization was identified at ∼13 GPa by in situ high pressure x-ray experiments. The amorphous product can be decompressed to ambient conditions. Ab initio calculations reveal that the anisotropic deformations of empty cages break the crystallographic long-range orders, leading to the formation of high-pressure amorphous state. Furthermore, the deformation routes of empty cages are found fully dependent on their individual locally structural geometry relevant to the distribution of extra-framework oxygen ions.
Authors:
Xinxin Zhang; Yanchao Wang; Hui Wang; Qiliang Cui; Chengxin Wang; Yanming Ma; Guangtian Zou
Related Documents :
3917634 - The effect of short-term oxygen supplementation on oxygen hemoglobin affinity in patien...
23458594 - Patients with hypertensive crises who are admitted to a coronary care unit: clinical ch...
22227524 - Occurrence of hypotension in older participants. which 24-hour abpm parameter better co...
11024424 - Transcorneal oxygen therapy for glaucoma associated with sickle cell hyphema.
23737164 - Hypoxic pulmonary hypertension of the newborn.
15096904 - Wrist blood pressure overestimates blood pressure measured at the upper arm.
Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  The Journal of chemical physics     Volume:  135     ISSN:  1089-7690     ISO Abbreviation:  J Chem Phys     Publication Date:  2011 Sep 
Date Detail:
Created Date:  2011-09-14     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0375360     Medline TA:  J Chem Phys     Country:  United States    
Other Details:
Languages:  eng     Pagination:  094506     Citation Subset:  IM    
Affiliation:
State Key Laboratory of Superhard Materials, Jilin University, Changchun 130012, People's Republic of ChinaState Key Laboratory of Optoelectronic Materials and Technologies, Institute of Optoelectronic and Functional Composite Materials, School of Physics Science and Engineering, Zhongshan (Sun Yat Sen) University, Guangzhou 510275, People's Republic of China.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Descriptor/Qualifier:

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


Previous Document:  Description of the geometric and electronic structures responsible for the photoelectron spectrum of...
Next Document:  Theory of reversible associative-dissociative diffusion-influenced chemical reaction. I. Geminate re...