Local structural changes during the disordered substitutional alloy transition in Bi2Te3 by high-pressure XAFS

2018 ◽  
Vol 124 (6) ◽  
pp. 065901 ◽  
Author(s):  
Zhiying Guo ◽  
Hailiang Zhu ◽  
Juncai Dong ◽  
Quanjie Jia ◽  
Yu Gong ◽  
...  
Keyword(s):  
High Pressure ◽  
Structural Changes ◽  
Substitutional Alloy

scholarly journals Structural changes and anomalous self-diffusion of oxygen in liquid iron at high pressure

2017 ◽  
Vol 44 (8) ◽  
pp. 3526-3534 ◽  
Author(s):  
Esther S. Posner ◽  
Gerd Steinle-Neumann ◽  
Vojtěch Vlček ◽  
David C. Rubie
Keyword(s):  
High Pressure ◽  
Liquid Iron ◽  
Structural Changes ◽  
Self Diffusion

The mechanism of structural changes and crystallization kinetics of amorphous red phosphorus to black phosphorus under high pressure

2019 ◽  
Vol 55 (56) ◽  
pp. 8094-8097 ◽  
Author(s):  
Heng Xiang ◽  
Yuting Nie ◽  
Hechuang Zheng ◽  
Xuhui Sun ◽  
Xueliang Sun ◽  
...  
Keyword(s):  
High Pressure ◽  
Crystallization Kinetics ◽  
Structural Changes ◽  
Black Phosphorus ◽  
Crystallization Mechanism ◽  
Red Phosphorus ◽  
Kinetics Of

Revealing the untraditional crystallization mechanism of amorphous red phosphorus to black phosphorus under high pressure.

High pressure structural changes in aluminium triiodide: A first principles study

2016 ◽  
Vol 144 (12) ◽  
pp. 124507 ◽  
Author(s):  
Arnab Majumdar ◽  
Dennis D. Klug ◽  
Yansun Yao
Keyword(s):  
High Pressure ◽  
First Principles ◽  
Structural Changes ◽  
First Principles Study

Structural changes in HgBa2Ca2Cu3O8+δ under high pressure

1997 ◽  
Vol 289 (1-2) ◽  
pp. 99-108 ◽  
Author(s):  
X. Zhang ◽  
W.H. Lu ◽  
C.K. Ong
Keyword(s):  
High Pressure ◽  
Structural Changes

‘We’re Still Hitting Things’: The Effectiveness of Third Party Processes for Pipeline Strike Prevention

2016 ◽  
Author(s):  
Vanessa McDermott ◽  
Jan Hayes
Keyword(s):  
High Pressure ◽  
Asset Management ◽  
Financial Risk ◽  
Structural Changes ◽  
Gas Pipeline ◽  
Third Party ◽  
Reputation Management ◽  
External Interference ◽  
Near Misses ◽  
Perceptions Of Risk

High-pressure gas pipelines are vulnerable to damage in the course of building or maintaining other infrastructure, such as roads, water pipelines, electricity or telecommunications cabling. Unlike other countries, there has never been a death or serious injury from a high-pressure gas pipeline strike in Australia and yet external interference continues to be the most common cause of pipeline damage despite a range of technical and legislative measures in place. This research project aims to enhance the safety strategies regarding third party pipeline strikes by giving the pipeline sector a greater understanding of the motivations and priorities of those who work around pipeline assets and so how to work with them to achieve better outcomes. Using data gathered from more than 70 in-depth interviews, we explore empirically alternate understandings of risk amongst a range of stakeholders and individuals that are responsible in some way for work near or around high-pressure gas transmission pipelines in Australia. Outside the pipeline sector, much of the work around pipelines is conducted by those at the bottom of long chains of contractors and sub-contractors. We discuss perceptions of risk held by a range of third party actors whose activities have the potential to threaten gas pipeline integrity. We compare these views with gas pipeline industry perceptions of risk, couched in terms of asset management, public safety, legal and insurance obligations, and reputation management. This paper focuses on how financial risk and so also management of the potential for pipeline strikes is shifted down the third party contractor chain. Added to this, incentives for timely project completion can unintentionally lead to situations where the potential for third party contractors to strike pipelines increases. The data shows that third party contractors feel the time and cost impact of design or project changes most immediately. Consequently, strikes or near misses may result as sub-contractors seek to avoid perceived ‘unnecessary’ time delays along with the associated financial impact. We argue that efforts to reduce the potential for pipeline strike need to be targeted at structural changes, rather than simply aimed at worker risk perception and enforcement of safety compliance strategies.

Structural changes in α-chitin through nanofibrillation by high-pressure homogenization in water

2020 ◽  
Vol 52 (7) ◽  
pp. 813-818
Author(s):  
Yuko Ono ◽  
Kota Ogura ◽  
Yuto Kaku ◽  
Shuji Fujisawa ◽  
Akira Isogai
Keyword(s):  
High Pressure ◽  
Structural Changes ◽  
High Pressure Homogenization

A new EXAFS investigation of local structural changes in amorphous and crystalline GeO2at high pressure

2009 ◽  
Vol 21 (14) ◽  
pp. 145403 ◽  
Author(s):  
M Vaccari ◽  
G Aquilanti ◽  
S Pascarelli ◽  
O Mathon
Keyword(s):  
High Pressure ◽  
Structural Changes

Structural changes in nanocrystalline mackinawite (FeS) at high pressure

2008 ◽  
Vol 42 (1) ◽  
pp. 15-21 ◽  
Author(s):  
L. Ehm ◽  
F. M. Michel ◽  
S. M. Antao ◽  
C. D. Martin ◽  
P. L. Lee ◽  
...  
Keyword(s):  
High Pressure ◽  
Pair Distribution Function ◽  
Structural Changes ◽  
Function Analysis ◽  
Structural Phase ◽  
High Energy ◽  
Particle Sizes ◽  
Grain Size Effect ◽  
X Ray ◽  
First Order

The high-pressure behavior of nanocrystalline mackinawite (FeS) with particle sizes of 6, 7 and 8 nm has been investigated by high-energy X-ray total scattering and pair distribution function analysis. An irreversible first-order structural phase transition from tetragonal mackinawite to orthorhombic FeS-II was observed at about 3 GPa. The transition is induced by the closure of the van der Waals gap in the layered mackinawite structure. A grain size effect on the transition pressure and the compressibility was observed.

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