Syntheses, X-ray Structures, Complexation and Thermal Stability Studies of Bis(5-carbomethoxy-1,3-phenylene)-(3x + 2)-crown-x Compounds

1995 ◽  
Vol 60 (3) ◽  
pp. 516-522 ◽  
Author(s):  
Yadollah Delaviz ◽  
Joseph S. Merola ◽  
Michael A. G. Berg ◽  
Harry W. Gibson
Keyword(s):  
Thermal Stability ◽  
Stability Studies ◽  
X Ray

Color tunable Ca8ZnM(PO4)7 (M = Lu/Tb, Lu/Eu, Tb/Eu) phosphors: luminescence, energy transfer and thermal stability studies for n-UV white LEDs

2021 ◽  
Author(s):  
Jing Yan ◽  
Chunyan Jiang ◽  
Yulun Xian ◽  
Jianbang Zhou ◽  
Hong Li ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Energy Transfer ◽  
High Temperature ◽  
Solid State ◽  
Powder Diffraction ◽  
Stability Studies ◽  
X Ray ◽  
White Leds ◽  
Color Tunable ◽  
Xrd Patterns

A series of Tb3+- and Eu3+-doped Ca8ZnLu(PO4)7 (CZLP:Tb3+ and CZLP:Eu3+) as well as Ca8ZnTb(PO4)7:Eu3+ (CZTP:Eu3+) phosphors have been prepared via the traditional high-temperature solid-state reaction. X-ray powder diffraction (XRD) patterns...

scholarly journals X-ray Crystal Structures, Packing Behavior, and Thermal Stability Studies of a Homologous Series of n-Alkyl-Substituted Polyhedral Oligomeric Silsesquioxanes

2013 ◽  
Vol 46 (3) ◽  
pp. 988-1001 ◽  
Author(s):  
Youssef El Aziz ◽  
Alan R. Bassindale ◽  
Peter G. Taylor ◽  
Richard A. Stephenson ◽  
Michael B. Hursthouse ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Crystal Structures ◽  
Homologous Series ◽  
Polyhedral Oligomeric Silsesquioxanes ◽  
Stability Studies ◽  
X Ray

Thermal stability studies of ion beam sputter deposited C/B4C X-ray multilayer mirror

2013 ◽  
Vol 527 ◽  
pp. 244-249 ◽  
Author(s):  
P.N. Rao ◽  
M.H. Modi ◽  
S.K. Rai ◽  
V.G. Sathe ◽  
S.K. Deb ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Ion Beam ◽  
Stability Studies ◽  
X Ray ◽  
Multilayer Mirror ◽  
Sputter Deposited

Thermal instability of Co-substituted barium hexaferrites with U-type structure

2006 ◽  
Vol 21 (2) ◽  
pp. 420-427 ◽  
Author(s):  
Darja Lisjak ◽  
Paul McGuiness ◽  
Miha Drofenik
Keyword(s):  
Thermal Stability ◽  
Magnetic Properties ◽  
Solid State ◽  
Thermal Instability ◽  
High Energy ◽  
Type Structure ◽  
Stability Studies ◽  
X Ray ◽  
Barium Hexaferrites ◽  
Annealing Conditions

Thermal stability studies of Co-substituted barium hexaferrites with the U-type structure are reported. Samples were prepared using solid-state reaction and high-energy milling at 1300 and 1250 °C, respectively. The influence of different annealing conditions on their compositions and magnetic properties was studied. Thermal instability of the studied compounds was observed at as low as 600 °C. Through x-ray powder diffraction, chemical analysis, and thermomagnetic measurements it was confirmed that a degradation of the U-hexaferrites occurred during the annealing at 600–800 °C. The observed changes in the samples’ phase compositions and structures did not have a significant influence on their magnetization and microwave properties.

scholarly journals Synthesis and photocatalytic properties of Sn–TiO2 nanomaterials

2020 ◽  
Vol 10 (01n02) ◽  
pp. 2060018
Author(s):  
E. M. Bayan ◽  
T. G. Lupeiko ◽  
L. E. Pustovaya ◽  
M. G. Volkova
Keyword(s):  
Phase Transition ◽  
Thermal Stability ◽  
Sol Gel ◽  
Rutile Phase ◽  
Photocatalytic Properties ◽  
Light Activation ◽  
X Ray ◽  
Tio2 Nanomaterials ◽  
Visible Light Activation ◽  
Thermal Stability Of

Sn-doped TiO2 nanomaterials were synthesized by sol–gel method. It was shown the phase compositions and phase transitions change with the introduction of different tin amounts (0.5–20[Formula: see text]mol.%). X-ray powder diffraction was used to study the effect of different tin amounts on the anatase–rutile phase transition. It was found that the introduction of ions increases the thermal stability of anatase modifications. The material’s photocatalytic activity was studied in reaction with a model pollutant (methylene blue) photodegradation under UV and visible light activation. The best photocatalytic properties were shown for material, which contains 5[Formula: see text]mol.% of Sn.

Growth and thermal stability studies of layered GaTe single crystals in inert atmospheres

2021 ◽  
Vol 296 ◽  
pp. 121996
Author(s):  
Thi Hoa Vu ◽  
Anh Tuan Pham ◽  
Van Quang Nguyen ◽  
Anh Duc Nguyen ◽  
Thao Nhi Nguyen Tran ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Single Crystals ◽  
Stability Studies

scholarly journals Improvement of the thermal stability of dendritic silver-coated copper microparticles by surface modification based on molecular self-assembly

2021 ◽  
Vol 8 (1) ◽  
Author(s):  
Tae Hyeong Kim ◽  
Hyeji Kim ◽  
Hyo Jun Jang ◽  
Nara Lee ◽  
Kwang Hyun Nam ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Photoelectron Spectroscopy ◽  
Self Assembly ◽  
Electrically Conductive ◽  
X Ray ◽  
Alkyl Chains ◽  
Conductive Film ◽  
Initial Resistance ◽  
Thermal Stability Of ◽  
Scanning Electron

AbstractIn the study reported herein, silver-coated copper (Ag/Cu) powder was modified with alkanethiols featuring alkyl chains of different lengths, namely butyl, octyl, and dodecyl, to improve its thermal stability. The modification of the Ag/Cu powders with adsorbed alkanethiols was confirmed by scanning electron microscopy with energy dispersive spectroscopy, X-ray photoelectron spectroscopy, and thermogravimetric analysis. Each powder was combined with an epoxy resin to prepare an electrically conductive film. The results confirmed that the thermal stability of the films containing alkanethiol-modified Ag/Cu powders is superior to that of the film containing untreated Ag/Cu powder. The longer the alkyl group in the alkanethiol-modified Ag/Cu powder, the higher the initial resistance of the corresponding electrically conductive film and the lower the increase in resistance induced by heat treatment.

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