Synthesis and characterization of branched yttrium hydroxide fluoride microcrystals with hierarchical tubular structure

2012 ◽  
Vol 30 (4) ◽  
pp. 378-382 ◽  
Author(s):  
Li TIAN ◽  
Wentao JIANG ◽  
Qiliang SUN ◽  
Jin LIU
Keyword(s):  
Tubular Structure ◽  
Synthesis And Characterization ◽  
Yttrium Hydroxide

Synthesis and characterization of a novel polyorganosiloxane having a bigger sized tubular structure and its supramolecular clathrate

2002 ◽  
Vol 13 (3-4) ◽  
pp. 188-195 ◽  
Author(s):  
Chunqing Liu ◽  
Zhihua Liu ◽  
Ping Xie ◽  
Daorong Dai ◽  
Rongben Zhang ◽  
...  
Keyword(s):  
Tubular Structure ◽  
Synthesis And Characterization

Synthesis and characterization of yttrium hydroxide and oxide microtubes

Rare Metals ◽  
2009 ◽  
Vol 28 (5) ◽  
pp. 445-448 ◽  
Author(s):  
Shijin Wang ◽  
Shengliang Zhong ◽  
Zubiao Wen ◽  
Yuling Wang ◽  
Shangping Wang ◽  
...  
Keyword(s):  
Synthesis And Characterization ◽  
Yttrium Hydroxide

Synthesis and Characterization of Y2O3/SiO2 Composites

2004 ◽  
Vol 59 (4-5) ◽  
pp. 281-287
Author(s):  
C. Cannas ◽  
M. Casu ◽  
M. Mainas ◽  
A. Musinu ◽  
G. Piccaluga
Keyword(s):  
Molecular Level ◽  
Precipitation Method ◽  
Synthesis And Characterization ◽  
Impregnation Method ◽  
Deposition Method ◽  
Yttrium Hydroxide ◽  
Nanocrystalline Particles ◽  
Silica Addition ◽  
Average Size

Impregnation and deposition-precipitation syntheses have been used to obtain Y2O3/SiO2 samples. In the deposition method, the urea causes the precipitation of yttrium hydroxide, which leads to the formation of yttria nanocrystalline particles in the final composites. Delaying the silica addition up to the visible muddying of the solution, a relevant formation of yttria nanocrystalline particles with average size of about 12 nm is produced. The composites obtained through the impregnation method are amorphous and contain different amounts of yttrium depending on the kind of solvent, the highest concentration being reached using ethanol. In all the samples important interactions at the molecular level among yttrium and silica are revealed, but less important in composites obtained with the deposition precipitation method.

Synthesis and characterization of polyorganosiloxane (POS) containing nano-scale tubular structure and its supramolecular clathrate

2001 ◽  
Vol 12 (11-12) ◽  
pp. 626-636 ◽  
Author(s):  
Chunqing Liu ◽  
Ping Xie ◽  
Daorong Dai ◽  
Rongben Zhang ◽  
Chuanfeng Zhu ◽  
...  
Keyword(s):  
Tubular Structure ◽  
Synthesis And Characterization ◽  
Nano Scale

Synthesis and Characterization of the Three Dicyclopentapyrenes

1996 ◽  
Vol 61 (10) ◽  
pp. 3572-3572
Author(s):  
Lawrence T. Scott ◽  
Atena Necula
Keyword(s):  
Synthesis And Characterization

Synthesis and characterization of TiN / Ti / AISI 410 coatings

2018 ◽  
Vol 2 (1) ◽  
pp. 7
Author(s):  
S Chirino ◽  
Jaime Diaz ◽  
N Monteblanco ◽  
E Valderrama
Keyword(s):  
Synthesis And Characterization ◽  
Photoemission Spectroscopy ◽  
X Ray Diffraction ◽  
X Ray ◽  
Columnar Grains ◽  
Tin Thin Films ◽  
Steel Aisi ◽  
Interacting Surfaces ◽  
Stainless Steel Aisi

The synthesis and characterization of Ti and TiN thin films of different thicknesses was carried out on a martensitic stainless steel AISI 410 substrate used for tool manufacturing. The mechanical parameters between the interacting surfaces such as thickness, adhesion and hardness were measured. By means of the scanning electron microscope (SEM) the superficial morphology of the Ti/TiN interface was observed, finding that the growth was of columnar grains and by means of EDAX the existence of titanium was verified.  Using X-ray diffraction (XRD) it was possible to observe the presence of residual stresses (~ -3.1 GPa) due to the different crystalline phases in the coating. Under X-ray photoemission spectroscopy (XPS) it was possible to observe the molecular chemical composition of the coating surface, being Ti-N, Ti-N-O and Ti-O the predominant ones.

Sign in / Sign up

Export Citation Format

Share Document