Water-induced phase transformation of a CuII coordination framework with pyridine-2,5-dicarboxylate and di-2-pyridyl ketone: synchrotron radiation analysis

CrystEngComm ◽  
2015 ◽  
Vol 17 (33) ◽  
pp. 6346-6354 ◽  
Author(s):  
Francisco Llano-Tomé ◽  
Begoña Bazán ◽  
M. Karmele Urtiaga ◽  
Gotzone Barandika ◽  
Arkaitz Fidalgo-Marijuan ◽  
...  
Keyword(s):  
Phase Transformation ◽  
Synchrotron Radiation ◽  
System P ◽  
Coordination Framework ◽  
Reversible Phase

Water-induced reversible phase transformation in the CuII–PDC–(py)2C(OH)2 system.

scholarly journals In-situ characterization of highly reversible phase transformation by synchrotron X-ray Laue microdiffraction

2016 ◽  
Vol 108 (21) ◽  
pp. 211902 ◽  
Author(s):  
Xian Chen ◽  
Nobumichi Tamura ◽  
Alastair MacDowell ◽  
Richard D. James
Keyword(s):  
Phase Transformation ◽  
In Situ Characterization ◽  
X Ray ◽  
Reversible Phase ◽  
Laue Microdiffraction

Pressure-Induced Bond Rearrangement and Reversible Phase Transformation in a Metal-Organic Framework

2014 ◽  
Vol 126 (22) ◽  
pp. 5689-5692 ◽  
Author(s):  
Elinor C. Spencer ◽  
Mangalampalli S. R. N. Kiran ◽  
Wei Li ◽  
Upadrasta Ramamurty ◽  
Nancy L. Ross ◽  
...  
Keyword(s):  
Phase Transformation ◽  
Metal Organic Framework ◽  
Metal Organic ◽  
Bond Rearrangement ◽  
Reversible Phase ◽  
Organic Framework

Removal and recovery of Pb from wastewater through a reversible phase transformation process between nano-flower-like Mg(OH)2 and soluble Mg(HCO3)2

2019 ◽  
Vol 6 (2) ◽  
pp. 467-477 ◽  
Author(s):  
Xueming Liu ◽  
Kainan Song ◽  
Weizhen Liu ◽  
Yuecheng Xiong ◽  
Yunyun Xu ◽  
...  
Keyword(s):  
Phase Transformation ◽  
Transformation Process ◽  
New Technique ◽  
Phase Transformation Process ◽  
A New Technique ◽  
Reversible Phase ◽  
Removal And Recovery

This study investigated the effectiveness of a new technique for recovering Pb as highly pure PbCO3 nanoparticles from wastewater by using a nano-Mg(OH)2 adsorbent.

A high-resolution Weissenberg camera for X-ray synchrotron radiation

1990 ◽  
Vol 23 (5) ◽  
pp. 351-354
Author(s):  
D. Hohlwein ◽  
J. D. Axe
Keyword(s):  
Phase Transformation ◽  
High Resolution ◽  
Synchrotron Radiation ◽  
Reciprocal Space ◽  
Experimental Results ◽  
Germanium Crystal ◽  
Synchrotron Source ◽  
X Ray ◽  
High Resolution Mapping ◽  
Resolution Mapping

A photographic Weissenberg camera has been constructed which can be mounted on the 2θ arm of a four-circle diffractometer. At a distance of 0.5 m from the sample the 2θ resolution for a 100 μm crystal is 0.2 mrad (0.01°), allowing a high-resolution mapping of reciprocal space at a synchrotron source in an efficient way. As sample experimental results, a study is presented of the streak system around the 111 reflection of a perfect germanium crystal and the detection of a minute phase transformation in a single-powder grain of a high-Tc superconductor.

SHAPE MEMORY INVESTIGATION OF SMART CAMAR LOGO USING NITI ALLOY WIRE

2015 ◽  
Vol 76 (3) ◽  
Author(s):  
Muhammad Safwan Shuhaimi ◽  
Nubailah Abd. Hamid ◽  
Rosliza Razali ◽  
Muhammad Hussain Ismail
Keyword(s):  
Phase Transformation ◽  
Shape Memory ◽  
Shape Memory Effect ◽  
Memory Effect ◽  
Niti Alloy ◽  
Niti Shape Memory Alloy ◽  
Shape Effect ◽  
Niti Wire ◽  
The Wire ◽  
Reversible Phase

This project is investigates of NiTi shape memory alloy for simple smart application. The shape memory effect (SME) is attributed from the reversible phase transformation when subjected to stress and temperature. In this study, a small model of CAMAR logo was designed to mimic the shape memory effect. Three samples of wire were investigated; (i) Austenitic NiTi (ii) Martensitic NiTi and (iii) commercial plain carbon steel. The reversible austenite to martensite transformation of the NiTi wire was investigated by a differential scanning calorimetry (DSC) at temperatures ranging from -50 and 200oC. The wire was shaped into CAMAR logo using a mould and then heated at 500°C for 30 minutes in a high temperature furnace. To observe the shape effect recovery, the wire was straighten and reheated in warm water at different temperatures. Results showed that the austenitic wire exhibited complete shape memory recovery after heated at temperature approximately 35°C and  80°C. For the martensitic wire, complete recovery was only observed when the water temperature was ~ 80°C and no recovery was observed at ~30°C. This recovery effect was significantly influenced by the reversible phase transformation temperatures (PTTs) which attributed from the Austenite finish (Af) temperature.

In-Situ X-ray Diffraction Study of Lithium Intercalation in Nanostructured Anatase Titanium dioxide

1998 ◽  
Vol 536 ◽  
Author(s):  
R. Van de Krol ◽  
E. A. Meulenkamp ◽  
A. Goossens ◽  
J. Schoonman
Keyword(s):  
Phase Transformation ◽  
Maximum Amount ◽  
Lithium Intercalation ◽  
X Ray Diffraction ◽  
X Ray ◽  
Before And After ◽  
The Difference ◽  
Two Phases ◽  
Reversible Phase

AbstractElectrochemical lithium intercalation in nanostructured anatase TiO2 is investigated with in-situ X-ray diffraction. A complete and reversible phase transformation from tetragonal anatase TiO2 to orthorhombic anatase Li0.5TiO2 is observed. The difference of the XRD spectra before and after insertion can be fitted with the lattice parameters of the two phases as fit parameters. The maximum amount of lithium that can be dissolved in anatase TiO2 before the phase transformation occurs is found to be very small.

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