scholarly journals Low-temperature crystal growth of Yb:Sr5 F(PO4 )3 without evident thermal runaway

2017 ◽  
Vol 100 (6) ◽  
pp. 2402-2406 ◽  
Author(s):  
Yin Liu ◽  
Yiyu Li ◽  
Yiquan Wu
Keyword(s):  
Crystal Growth ◽  
Low Temperature ◽  
Thermal Runaway

scholarly journals Elucidation of the Crystal Growth Characteristics of SnO2 Nanoaggregates Formed by Sequential Low-Temperature Sol-Gel Reaction and Freeze Drying

Nanomaterials ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 1738
Author(s):  
Saeid Vafaei ◽  
Alexander Wolosz ◽  
Catlin Ethridge ◽  
Udo Schnupf ◽  
Nagisa Hattori ◽  
...  
Keyword(s):  
Crystal Growth ◽  
Low Temperature ◽  
Photoelectron Spectroscopy ◽  
High Performance ◽  
Freeze Drying ◽  
Sno2 Nanoparticles ◽  
Sol Gel ◽  
Functional Materials ◽  
Cost Effective ◽  
High Concentration

SnO2 nanoparticles are regarded as attractive, functional materials because of their versatile applications. SnO2 nanoaggregates with single-nanometer-scale lumpy surfaces provide opportunities to enhance hetero-material interfacial areas, leading to the performance improvement of materials and devices. For the first time, we demonstrate that SnO2 nanoaggregates with oxygen vacancies can be produced by a simple, low-temperature sol-gel approach combined with freeze-drying. We characterize the initiation of the low-temperature crystal growth of the obtained SnO2 nanoaggregates using high-resolution transmission electron microscopy (HRTEM). The results indicate that Sn (II) hydroxide precursors are converted into submicrometer-scale nanoaggregates consisting of uniform SnO2 spherical nanocrystals (2~5 nm in size). As the sol-gel reaction time increases, further crystallization is observed through the neighboring particles in a confined part of the aggregates, while the specific surface areas of the SnO2 samples increase concomitantly. In addition, X-ray photoelectron spectroscopy (XPS) measurements suggest that Sn (II) ions exist in the SnO2 samples when the reactions are stopped after a short time or when a relatively high concentration of Sn (II) is involved in the corresponding sol-gel reactions. Understanding this low-temperature growth of 3D SnO2 will provide new avenues for developing and producing high-performance, photofunctional nanomaterials via a cost-effective and scalable method.

Synthesis and crystallogenesis at low temperature of Fe(III)-smectites by evolution of coprecipitated gels: experiments in partially reducing conditions

Clay Minerals ◽  
1986 ◽  
Vol 21 (5) ◽  
pp. 861-877 ◽  
Author(s):  
A. Decarreau ◽  
D. Bonnin
Keyword(s):  
Crystal Growth ◽  
Iron Oxide ◽  
Low Temperature ◽  
Oxide Phase ◽  
Octahedral Sheet ◽  
Reducing Conditions ◽  
Iron Oxide Phase

AbstractSyntheses of ferric smectites were performed at low temperature (75° C by aging coprecipitated gels of silica and Fe2+-sulphate under initially reducing then oxidizing conditions. Under strictly reducing conditions only nuclei of a trioctahedral ferrous stevensite were observed and crystal growth did not take place. When a spontaneous oxidization, in contact with air, was effected, the ferrous smectite nuclei transformed rapidly into a ferric, nontronite-like, smectite. Crystallogenesis of the ferric smectite was studied by XRD, IR, DTA, Mössbauer and EPR spectroscopies. The end-synthesis smectite contained only Fe3+ions, all located in the octahedral sheet. This clay was mixed with a cryptocrystalline iron oxide phase containing one-third of the iron atoms and undetectable by XRD.

scholarly journals Crystal Growth of Low-Temperature Processed Poly-Si by Excimer Laser Annealing. Dependences of Poly-Si Grain on Energy Density and Shot Number.

Shinku ◽  
2000 ◽  
Vol 43 (12) ◽  
pp. 1120-1125 ◽  
Author(s):  
Naoto MATSUO ◽  
Hisashi ABE ◽  
Naoya KAWAMOTO ◽  
Ryouhei TAGUCHI ◽  
Tomoyuki NOUDA ◽  
...  
Keyword(s):  
Crystal Growth ◽  
Energy Density ◽  
Low Temperature ◽  
Excimer Laser ◽  
Laser Annealing ◽  
Excimer Laser Annealing ◽  
Shot Number

Crystal growth from low temperature solutions

1981 ◽  
Vol 52 ◽  
pp. 779-788 ◽  
Author(s):  
B. Simon ◽  
R. Boistelle
Keyword(s):  
Crystal Growth ◽  
Low Temperature

Crystal growth in the low-temperature deposition of polycrystalline silicon thin film

2005 ◽  
Vol 274 (3-4) ◽  
pp. 347-354
Author(s):  
Seung-Doh Shin ◽  
Dong-Wan Kim ◽  
Dong-Ik Kim ◽  
Doh-Yeon Kim
Keyword(s):  
Thin Film ◽  
Crystal Growth ◽  
Low Temperature ◽  
Polycrystalline Silicon ◽  
Silicon Thin Film ◽  
Low Temperature Deposition ◽  
Temperature Deposition

Single Crystal Growth of Tl2Ba2CaCu2O8 and Tl2Ba2Ca2Cu3O10 and Low Temperature X-ray Single Crystal Experiment of Tl2Ba2Ca2Cu3O10

1995 ◽  
pp. 317-320
Author(s):  
Yoshitaka Matsushita ◽  
Masashi Hasegawa ◽  
Humihiko Takei
Keyword(s):  
Crystal Growth ◽  
Low Temperature ◽  
Single Crystal ◽  
Single Crystal Growth ◽  
X Ray

Crystal growth, low-temperature specific heat, and electronic structure of the filled skutterudite compound ThOs4As12

2020 ◽  
Vol 100 (10) ◽  
pp. 1355-1366
Author(s):  
J. Juraszek ◽  
K. Rola ◽  
M. Daszkiewicz ◽  
M. Samsel-Czekała ◽  
T. Cichorek ◽  
...  
Keyword(s):  
Electronic Structure ◽  
Crystal Growth ◽  
Low Temperature ◽  
Specific Heat ◽  
Filled Skutterudite ◽  
Low Temperature Specific Heat ◽  
Skutterudite Compound

402 Analysis of frost deposition in a low temperature environment II : crystal growth period

2008 ◽  
Vol 2008.18 (0) ◽  
pp. 312-315
Author(s):  
Koji YAMASHITA ◽  
Hidetoshi OHKUBO
Keyword(s):  
Crystal Growth ◽  
Low Temperature ◽  
Growth Period ◽  
Temperature Environment
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